ImportCatalogPart Class
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
public ref class ImportCatalogPart sealed : System::Web::UI::WebControls::WebParts::CatalogPart
public sealed class ImportCatalogPart : System.Web.UI.WebControls.WebParts.CatalogPart
type ImportCatalogPart = class
inherit CatalogPart
Public NotInheritable Class ImportCatalogPart
Inherits CatalogPart
- Inheritance
Examples
The following code example demonstrates how to use the ImportCatalogPart control declaratively and programmatically on a Web page. The example has four parts:
A user control that enables you to change display modes on a Web Parts page.
A Web page that contains a CatalogZone control and an ImportCatalogPart control.
A source code file that contains two custom WebPart controls.
An explanation of how the example works when you load the page in a browser.
The first part of this code example is the user control that enables users to change display modes on a Web page. You should place the following source code in a file and name it Displaymodemenucs.ascx or Displaymodemenuvb.ascx (depending on which language you are using). For details about display modes and a description of the source code in this control, see Walkthrough: Changing Display Modes on a Web Parts Page.
<%@ control language="C#" classname="DisplayModeMenuCS"%>
<script runat="server">
// Use a field to reference the current WebPartManager.
WebPartManager _manager;
void Page_Init(object sender, EventArgs e)
{
Page.InitComplete += new EventHandler(InitComplete);
}
void InitComplete(object sender, System.EventArgs e)
{
_manager = WebPartManager.GetCurrentWebPartManager(Page);
String browseModeName = WebPartManager.BrowseDisplayMode.Name;
// Fill the dropdown with the names of supported display modes.
foreach (WebPartDisplayMode mode in _manager.SupportedDisplayModes)
{
String modeName = mode.Name;
// Make sure a mode is enabled before adding it.
if (mode.IsEnabled(_manager))
{
ListItem item = new ListItem(modeName, modeName);
DisplayModeDropdown.Items.Add(item);
}
}
// If shared scope is allowed for this user, display the scope-switching
// UI and select the appropriate radio button for the current user scope.
if (_manager.Personalization.CanEnterSharedScope)
{
Panel2.Visible = true;
if (_manager.Personalization.Scope == PersonalizationScope.User)
RadioButton1.Checked = true;
else
RadioButton2.Checked = true;
}
}
// Change the page to the selected display mode.
void DisplayModeDropdown_SelectedIndexChanged(object sender, EventArgs e)
{
String selectedMode = DisplayModeDropdown.SelectedValue;
WebPartDisplayMode mode = _manager.SupportedDisplayModes[selectedMode];
if (mode != null)
_manager.DisplayMode = mode;
}
// Set the selected item equal to the current display mode.
void Page_PreRender(object sender, EventArgs e)
{
ListItemCollection items = DisplayModeDropdown.Items;
int selectedIndex =
items.IndexOf(items.FindByText(_manager.DisplayMode.Name));
DisplayModeDropdown.SelectedIndex = selectedIndex;
}
// Reset all of a user's personalization data for the page.
protected void LinkButton1_Click(object sender, EventArgs e)
{
_manager.Personalization.ResetPersonalizationState();
}
// If not in User personalization scope, toggle into it.
protected void RadioButton1_CheckedChanged(object sender, EventArgs e)
{
if (_manager.Personalization.Scope == PersonalizationScope.Shared)
_manager.Personalization.ToggleScope();
}
// If not in Shared scope, and if user is allowed, toggle the scope.
protected void RadioButton2_CheckedChanged(object sender, EventArgs e)
{
if (_manager.Personalization.CanEnterSharedScope &&
_manager.Personalization.Scope == PersonalizationScope.User)
_manager.Personalization.ToggleScope();
}
</script>
<div>
<asp:Panel ID="Panel1" runat="server"
Borderwidth="1"
Width="230"
BackColor="lightgray"
Font-Names="Verdana, Arial, Sans Serif" >
<asp:Label ID="Label1" runat="server"
Text=" Display Mode"
Font-Bold="true"
Font-Size="8"
Width="120"
AssociatedControlID="DisplayModeDropdown"/>
<asp:DropDownList ID="DisplayModeDropdown" runat="server"
AutoPostBack="true"
Width="120"
OnSelectedIndexChanged="DisplayModeDropdown_SelectedIndexChanged" />
<asp:LinkButton ID="LinkButton1" runat="server"
Text="Reset User State"
ToolTip="Reset the current user's personalization data for the page."
Font-Size="8"
OnClick="LinkButton1_Click" />
<asp:Panel ID="Panel2" runat="server"
GroupingText="Personalization Scope"
Font-Bold="true"
Font-Size="8"
Visible="false" >
<asp:RadioButton ID="RadioButton1" runat="server"
Text="User"
AutoPostBack="true"
GroupName="Scope" OnCheckedChanged="RadioButton1_CheckedChanged" />
<asp:RadioButton ID="RadioButton2" runat="server"
Text="Shared"
AutoPostBack="true"
GroupName="Scope"
OnCheckedChanged="RadioButton2_CheckedChanged" />
</asp:Panel>
</asp:Panel>
</div>
<%@ control language="vb" classname="DisplayModeMenuVB"%>
<script runat="server">
' Use a field to reference the current WebPartManager.
Dim _manager As WebPartManager
Sub Page_Init(ByVal sender As Object, ByVal e As EventArgs)
AddHandler Page.InitComplete, AddressOf InitComplete
End Sub
Sub InitComplete(ByVal sender As Object, ByVal e As System.EventArgs)
_manager = WebPartManager.GetCurrentWebPartManager(Page)
Dim browseModeName As String = WebPartManager.BrowseDisplayMode.Name
' Fill the dropdown with the names of supported display modes.
Dim mode As WebPartDisplayMode
For Each mode In _manager.SupportedDisplayModes
Dim modeName As String = mode.Name
' Make sure a mode is enabled before adding it.
If mode.IsEnabled(_manager) Then
Dim item As New ListItem(modeName, modeName)
DisplayModeDropdown.Items.Add(item)
End If
Next mode
' If shared scope is allowed for this user, display the scope-switching
' UI and select the appropriate radio button for the current user scope.
If _manager.Personalization.CanEnterSharedScope Then
Panel2.Visible = True
If _manager.Personalization.Scope = PersonalizationScope.User Then
RadioButton1.Checked = True
Else
RadioButton2.Checked = True
End If
End If
End Sub
' Change the page to the selected display mode.
Sub DisplayModeDropdown_SelectedIndexChanged(ByVal sender As Object, _
ByVal e As EventArgs)
Dim selectedMode As String = DisplayModeDropdown.SelectedValue
Dim mode As WebPartDisplayMode = _
_manager.SupportedDisplayModes(selectedMode)
If Not (mode Is Nothing) Then
_manager.DisplayMode = mode
End If
End Sub
' Set the selected item equal to the current display mode.
Sub Page_PreRender(ByVal sender As Object, ByVal e As EventArgs)
Dim items As ListItemCollection = DisplayModeDropdown.Items
Dim selectedIndex As Integer = _
items.IndexOf(items.FindByText(_manager.DisplayMode.Name))
DisplayModeDropdown.SelectedIndex = selectedIndex
End Sub
' Reset all of a user's personalization data for the page.
Protected Sub LinkButton1_Click(ByVal sender As Object, _
ByVal e As EventArgs)
_manager.Personalization.ResetPersonalizationState()
End Sub
' If not in User personalization scope, toggle into it.
Protected Sub RadioButton1_CheckedChanged(ByVal sender As Object, _
ByVal e As EventArgs)
If _manager.Personalization.Scope = PersonalizationScope.Shared Then
_manager.Personalization.ToggleScope()
End If
End Sub
' If not in Shared scope, and if user is allowed, toggle the scope.
Protected Sub RadioButton2_CheckedChanged(ByVal sender As Object, _
ByVal e As EventArgs)
If _manager.Personalization.CanEnterSharedScope AndAlso _
_manager.Personalization.Scope = PersonalizationScope.User Then
_manager.Personalization.ToggleScope()
End If
End Sub
</script>
<div>
<asp:Panel ID="Panel1" runat="server"
Borderwidth="1"
Width="230"
BackColor="lightgray"
Font-Names="Verdana, Arial, Sans Serif" >
<asp:Label ID="Label1" runat="server"
Text=" Display Mode"
Font-Bold="true"
Font-Size="8"
Width="120"
AssociatedControlID="DisplayModeDropdown"/>
<asp:DropDownList ID="DisplayModeDropdown" runat="server"
AutoPostBack="true"
Width="120"
OnSelectedIndexChanged="DisplayModeDropdown_SelectedIndexChanged" />
<asp:LinkButton ID="LinkButton1" runat="server"
Text="Reset User State"
ToolTip="Reset the current user's personalization data for the page."
Font-Size="8"
OnClick="LinkButton1_Click" />
<asp:Panel ID="Panel2" runat="server"
GroupingText="Personalization Scope"
Font-Bold="true"
Font-Size="8"
Visible="false" >
<asp:RadioButton ID="RadioButton1" runat="server"
Text="User"
AutoPostBack="true"
GroupName="Scope" OnCheckedChanged="RadioButton1_CheckedChanged" />
<asp:RadioButton ID="RadioButton2" runat="server"
Text="Shared"
AutoPostBack="true"
GroupName="Scope"
OnCheckedChanged="RadioButton2_CheckedChanged" />
</asp:Panel>
</asp:Panel>
</div>
The second part of the code example is the Web page. At the top of the page are two register
directives, one for the user control and one for the compiled component that contains the two custom WebPart controls. Notice that the page has a declarative reference to the ImportCatalogPart control, nested within the proper hierarchy of declarative elements. Notice also that several property values are assigned declaratively on the <asp:importcatalogpart>
element. Also, the Button1_Click
method updates a number of property values on the ImportCatalogPart control.
In the page's WebPartZone control, the two custom WebPart controls are declared. The <aspSample:userinfowebpart>
control has an exportmode="all"
attribute on it. This attribute is required to enable users to export a description file for the control, which can then be imported by other users who wish to import the control using the description file.
Note
To enable users of a Web Parts application to export a description file for WebPart controls, you must also enable the export feature in the Web application by adding an enableExport="true"
attribute to the <webParts>
element (which is a child of the <system.web>
element) in the Web.config file. Export is disabled by default, so if you have not yet enabled export for your application, edit the Web.config file and do it now.
<%@ page language="c#" %>
<%@ register TagPrefix="uc1"
TagName="DisplayModeMenuCS"
Src="DisplayModeMenuCS.ascx" %>
<%@ register tagprefix="aspSample"
Namespace="Samples.AspNet.CS.Controls" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
// <snippet3>
protected void Button1_Click(object sender, EventArgs e)
{
ImportCatalogPart1.Title = "Import Server Controls";
ImportCatalogPart1.BrowseHelpText = "Enter the path to a "
+ "description file.";
ImportCatalogPart1.UploadButtonText = "Upload Description";
ImportCatalogPart1.UploadHelpText = "Upload a description file.";
ImportCatalogPart1.ImportedPartLabelText = "Imported Controls";
ImportCatalogPart1.PartImportErrorLabelText = "An error occurred "
+ "during the import process.";
}
// </snippet3>
protected void Page_Load(object sender, EventArgs e)
{
Button1.Visible = false;
}
protected void ImportCatalogPart1_PreRender(object sender,
EventArgs e)
{
Button1.Visible = true;
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>
ImportCatalogPart Control
</title>
</head>
<body>
<form id="form1" runat="server">
<asp:webpartmanager id="WebPartManager1" runat="server" />
<uc1:DisplayModeMenuCS ID="DisplayModeMenu1" runat="server" />
<asp:webpartzone id="zone1" runat="server" >
<PartTitleStyle BorderWidth="1"
Font-Names="Verdana, Arial"
Font-Size="110%"
BackColor="LightBlue" />
<zonetemplate>
<aspSample:TextDisplayWebPart
runat="server"
id="TextDisplayWebPart1"
title = "Text Display WebPart" />
<aspsample:userinfowebpart id="userinfo1" runat="server"
Title="User Information" exportmode="all" />
</zonetemplate>
</asp:webpartzone>
<asp:EditorZone ID="EditorZone1" runat="server">
<ZoneTemplate>
<asp:PropertyGridEditorPart ID="PropertyGridEditorPart1"
runat="server" />
</ZoneTemplate>
</asp:EditorZone>
<asp:CatalogZone ID="CatalogZone1" runat="server">
<ZoneTemplate>
<asp:ImportCatalogPart ID="ImportCatalogPart1"
runat="server"
Title="My ImportCatalogPart"
OnPreRender="ImportCatalogPart1_PreRender"
BrowseHelpText="Type a path or browse to find a control's
description file."
UploadButtonText="Upload Description File"
UploadHelpText="Click the button to upload the description
file."
ImportedPartLabelText="My User Information WebPart"
PartImportErrorLabelText="An error occurred while trying
to import a description file." />
</ZoneTemplate>
</asp:CatalogZone>
<hr />
<asp:Button ID="Button1" runat="server"
Text="Update ImportCatalogPart"
OnClick="Button1_Click" />
</form>
</body>
</html>
<%@ page language="VB" %>
<%@ register TagPrefix="uc1"
TagName="DisplayModeMenuVB"
Src="DisplayModeMenuVB.ascx" %>
<%@ register tagprefix="aspSample"
Namespace="Samples.AspNet.VB.Controls" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
' <snippet3>
Protected Sub Button1_Click(ByVal sender As Object, _
ByVal e As EventArgs)
ImportCatalogPart1.Title = "Import Server Controls"
ImportCatalogPart1.BrowseHelpText = "Enter the path to a " _
& "description file."
ImportCatalogPart1.UploadButtonText = "Upload Description"
ImportCatalogPart1.UploadHelpText = "Upload a description file."
ImportCatalogPart1.ImportedPartLabelText = "Imported Controls"
ImportCatalogPart1.PartImportErrorLabelText = "An error occurred " _
& "during the import process."
End Sub
' </snippet3>
Protected Sub Page_Load(ByVal sender As Object, _
ByVal e As EventArgs)
Button1.Visible = false
End Sub
Protected Sub ImportCatalogPart1_PreRender(ByVal sender As Object, _
ByVal e As EventArgs)
Button1.Visible = true
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>
ImportCatalogPart Control
</title>
</head>
<body>
<form id="form1" runat="server">
<asp:webpartmanager id="WebPartManager1" runat="server" />
<uc1:DisplayModeMenuVB ID="DisplayModeMenu1" runat="server" />
<asp:webpartzone id="zone1" runat="server" >
<PartTitleStyle BorderWidth="1"
Font-Names="Verdana, Arial"
Font-Size="110%"
BackColor="LightBlue" />
<zonetemplate>
<aspSample:TextDisplayWebPart
runat="server"
id="TextDisplayWebPart1"
title = "Text Display WebPart" />
<aspsample:userinfowebpart id="userinfo1" runat="server"
Title="User Information" exportmode="all" />
</zonetemplate>
</asp:webpartzone>
<asp:EditorZone ID="EditorZone1" runat="server">
<ZoneTemplate>
<asp:PropertyGridEditorPart ID="PropertyGridEditorPart1"
runat="server" />
</ZoneTemplate>
</asp:EditorZone>
<asp:CatalogZone ID="CatalogZone1" runat="server">
<ZoneTemplate>
<asp:ImportCatalogPart ID="ImportCatalogPart1"
runat="server"
Title="My ImportCatalogPart"
OnPreRender="ImportCatalogPart1_PreRender"
BrowseHelpText="Type a path or browse to find a control's
description file."
UploadButtonText="Upload Description File"
UploadHelpText="Click the button to upload the description
file."
ImportedPartLabelText="My User Information WebPart"
PartImportErrorLabelText="An error occurred while trying
to import a description file." />
</ZoneTemplate>
</asp:CatalogZone>
<hr />
<asp:Button ID="Button1" runat="server"
Text="Update ImportCatalogPart"
OnClick="Button1_Click" />
</form>
</body>
</html>
The third part of the code example is the source code for the two WebPart controls. Notice that some properties on these controls are marked with the WebBrowsable
attribute. This enables the PropertyGridEditorPart control to dynamically generate the user interface (UI) for a user to edit those properties when the controls are in edit mode. The properties are also marked with a WebDisplayName
attribute, to specify the text of the label that appears next to each control in the editing UI. For the code example to run, you must compile this source code. You can compile it explicitly and put the resulting assembly in your Web site's Bin folder or the global assembly cache. Alternatively, you can put the source code in your site's App_Code folder, where it will be dynamically compiled at run time. This code example uses dynamic compilation. For a walkthrough that demonstrates both methods of compiling, see Walkthrough: Developing and Using a Custom Web Server Control.
The custom control called TextDisplayWebPart
is referenced on the Web page with an <aspSample:TextDisplayWebPart>
element. The other control, called UserInfoWebPart
, is also declared on the Web page initially, though you will remove it later to demonstrate the ability to import a description file for a control.
using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Security.Permissions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
namespace Samples.AspNet.CS.Controls
{
[AspNetHostingPermission(SecurityAction.Demand,
Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand,
Level = AspNetHostingPermissionLevel.Minimal)]
public class UserInfoWebPart : WebPart
{
HttpServerUtility server = HttpContext.Current.Server;
private String _userNickName = "Add a nickname.";
private String _userPetName = "Add a pet name.";
private DateTime _userSpecialDate = DateTime.Now;
private Boolean _userIsCurrent = true;
private JobTypeName _userJobType = JobTypeName.Unselected;
public enum JobTypeName
{
Unselected = 0,
Support = 1,
Service = 2,
Professional = 3,
Technical = 4,
Manager = 5,
Executive = 6
}
Label NickNameLabel;
Label PetNickNameLabel;
Label SpecialDateLabel;
CheckBox IsCurrentCheckBox;
Label JobTypeLabel;
// Add the Personalizable and WebBrowsable attributes to the
// public properties, so that users can save property values
// and edit them with a PropertyGridEditorPart control.
[Personalizable(), WebBrowsable, WebDisplayName("Nickname")]
public String NickName
{
get
{
object o = ViewState["NickName"];
if (o != null)
return (string)o;
else
return _userNickName;
}
set { _userNickName = server.HtmlEncode(value); }
}
[Personalizable(), WebBrowsable, WebDisplayName("Pet Name")]
public String PetName
{
get
{
object o = ViewState["PetName"];
if (o != null)
return (string)o;
else
return _userPetName;
}
set { _userPetName = server.HtmlEncode(value); }
}
[Personalizable(), WebBrowsable(), WebDisplayName("Special Day")]
public DateTime SpecialDay
{
get
{
object o = ViewState["SpecialDay"];
if (o != null)
return (DateTime)o;
else
return _userSpecialDate;
}
set { _userSpecialDate = value; }
}
[Personalizable(), WebBrowsable(), WebDisplayName("Job Type")]
public JobTypeName UserJobType
{
get
{
object o = ViewState["UserJobType"];
if (o != null)
return (JobTypeName)o;
else
return _userJobType;
}
set { _userJobType = (JobTypeName)value; }
}
[Personalizable(), WebBrowsable(), WebDisplayName("Is Current")]
public Boolean IsCurrent
{
get
{
object o = ViewState["IsCurrent"];
if (o != null)
return (Boolean)o;
else
return _userIsCurrent;
}
set { _userIsCurrent = value; }
}
protected override void CreateChildControls()
{
Controls.Clear();
NickNameLabel = new Label();
NickNameLabel.Text = this.NickName;
SetControlAttributes(NickNameLabel);
PetNickNameLabel = new Label();
PetNickNameLabel.Text = this.PetName;
SetControlAttributes(PetNickNameLabel);
SpecialDateLabel = new Label();
SpecialDateLabel.Text = this.SpecialDay.ToShortDateString();
SetControlAttributes(SpecialDateLabel);
IsCurrentCheckBox = new CheckBox();
IsCurrentCheckBox.Checked = this.IsCurrent;
SetControlAttributes(IsCurrentCheckBox);
JobTypeLabel = new Label();
JobTypeLabel.Text = this.UserJobType.ToString();
SetControlAttributes(JobTypeLabel);
ChildControlsCreated = true;
}
private void SetControlAttributes(WebControl ctl)
{
ctl.BackColor = Color.White;
ctl.BorderWidth = 1;
ctl.Width = 200;
this.Controls.Add(ctl);
}
protected override void RenderContents(HtmlTextWriter writer)
{
writer.Write("Nickname:");
writer.WriteBreak();
NickNameLabel.RenderControl(writer);
writer.WriteBreak();
writer.Write("Pet Name:");
writer.WriteBreak();
PetNickNameLabel.RenderControl(writer);
writer.WriteBreak();
writer.Write("Special Date:");
writer.WriteBreak();
SpecialDateLabel.RenderControl(writer);
writer.WriteBreak();
writer.Write("Job Type:");
writer.WriteBreak();
JobTypeLabel.RenderControl(writer);
writer.WriteBreak();
writer.Write("Current:");
writer.WriteBreak();
IsCurrentCheckBox.RenderControl(writer);
}
}
[AspNetHostingPermission(SecurityAction.Demand,
Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand,
Level = AspNetHostingPermissionLevel.Minimal)]
public class TextDisplayWebPart : WebPart
{
private String _contentText = null;
TextBox input;
Label DisplayContent;
Literal lineBreak;
[Personalizable(), WebBrowsable]
public String ContentText
{
get { return _contentText; }
set { _contentText = value; }
}
protected override void CreateChildControls()
{
Controls.Clear();
DisplayContent = new Label();
DisplayContent.BackColor = Color.LightBlue;
DisplayContent.Text = this.ContentText;
this.Controls.Add(DisplayContent);
lineBreak = new Literal();
lineBreak.Text = @"<br />";
Controls.Add(lineBreak);
input = new TextBox();
this.Controls.Add(input);
Button update = new Button();
update.Text = "Set Label Content";
update.Click += new EventHandler(this.submit_Click);
this.Controls.Add(update);
}
private void submit_Click(object sender, EventArgs e)
{
// Update the label string.
if (!String.IsNullOrEmpty(input.Text))
{
_contentText = Context.Server.HtmlEncode(input.Text) + @"<br />";
input.Text = String.Empty;
DisplayContent.Text = this.ContentText;
}
}
}
}
Imports System.Collections
Imports System.ComponentModel
Imports System.Drawing
Imports System.Security.Permissions
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Web.UI.WebControls.WebParts
Namespace Samples.AspNet.VB.Controls
<AspNetHostingPermission(SecurityAction.Demand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermission(SecurityAction.InheritanceDemand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
Public Class UserInfoWebPart
Inherits WebPart
Private server As HttpServerUtility = HttpContext.Current.Server
Private _userNickName As String = "Add a nickname."
Private _userPetName As String = "Add a pet name."
Private _userSpecialDate As DateTime = DateTime.Now
Private _userIsCurrent As [Boolean] = True
Private _userJobType As JobTypeName = JobTypeName.Unselected
Public Enum JobTypeName
Unselected = 0
Support = 1
Service = 2
Professional = 3
Technical = 4
Manager = 5
Executive = 6
End Enum
Private NickNameLabel As Label
Private PetNickNameLabel As Label
Private SpecialDateLabel As Label
Private IsCurrentCheckBox As CheckBox
Private JobTypeLabel As Label
' Add the Personalizable and WebBrowsable attributes to the
' public properties, so that users can save property values
' and edit them with a PropertyGridEditorPart control.
<Personalizable(), WebBrowsable(), WebDisplayName("Nickname")> _
Public Property NickName() As String
Get
Dim o As Object = ViewState("NickName")
If Not (o Is Nothing) Then
Return CStr(o)
Else
Return _userNickName
End If
End Get
Set(ByVal value As String)
_userNickName = server.HtmlEncode(value)
End Set
End Property
<Personalizable(), WebBrowsable(), WebDisplayName("Pet Name")> _
Public Property PetName() As String
Get
Dim o As Object = ViewState("PetName")
If Not (o Is Nothing) Then
Return CStr(o)
Else
Return _userPetName
End If
End Get
Set(ByVal value As String)
_userPetName = server.HtmlEncode(value)
End Set
End Property
<Personalizable(), WebBrowsable(), WebDisplayName("Special Day")> _
Public Property SpecialDay() As DateTime
Get
Dim o As Object = ViewState("SpecialDay")
If Not (o Is Nothing) Then
Return CType(o, DateTime)
Else
Return _userSpecialDate
End If
End Get
Set(ByVal value As DateTime)
_userSpecialDate = value
End Set
End Property
<Personalizable(), WebBrowsable(), WebDisplayName("Job Type")> _
Public Property UserJobType() As JobTypeName
Get
Dim o As Object = ViewState("UserJobType")
If Not (o Is Nothing) Then
Return CType(o, JobTypeName)
Else
Return _userJobType
End If
End Get
Set(ByVal value As JobTypeName)
_userJobType = CType(value, JobTypeName)
End Set
End Property
<Personalizable(), WebBrowsable(), WebDisplayName("Is Current")> _
Public Property IsCurrent() As [Boolean]
Get
Dim o As Object = ViewState("IsCurrent")
If Not (o Is Nothing) Then
Return CType(o, [Boolean])
Else
Return _userIsCurrent
End If
End Get
Set(ByVal value As [Boolean])
_userIsCurrent = value
End Set
End Property
Protected Overrides Sub CreateChildControls()
Controls.Clear()
NickNameLabel = New Label()
NickNameLabel.Text = Me.NickName
SetControlAttributes(NickNameLabel)
PetNickNameLabel = New Label()
PetNickNameLabel.Text = Me.PetName
SetControlAttributes(PetNickNameLabel)
SpecialDateLabel = New Label()
SpecialDateLabel.Text = Me.SpecialDay.ToShortDateString()
SetControlAttributes(SpecialDateLabel)
IsCurrentCheckBox = New CheckBox()
IsCurrentCheckBox.Checked = Me.IsCurrent
SetControlAttributes(IsCurrentCheckBox)
JobTypeLabel = New Label()
JobTypeLabel.Text = Me.UserJobType.ToString()
SetControlAttributes(JobTypeLabel)
ChildControlsCreated = True
End Sub
Private Sub SetControlAttributes(ByVal ctl As WebControl)
ctl.BackColor = Color.White
ctl.BorderWidth = 1
ctl.Width = 200
Me.Controls.Add(ctl)
End Sub
Protected Overrides Sub RenderContents(ByVal writer As HtmlTextWriter)
writer.Write("Nickname:")
writer.WriteBreak()
NickNameLabel.RenderControl(writer)
writer.WriteBreak()
writer.Write("Pet Name:")
writer.WriteBreak()
PetNickNameLabel.RenderControl(writer)
writer.WriteBreak()
writer.Write("Special Date:")
writer.WriteBreak()
SpecialDateLabel.RenderControl(writer)
writer.WriteBreak()
writer.Write("Job Type:")
writer.WriteBreak()
JobTypeLabel.RenderControl(writer)
writer.WriteBreak()
writer.Write("Current:")
writer.WriteBreak()
IsCurrentCheckBox.RenderControl(writer)
End Sub
End Class
<AspNetHostingPermission(SecurityAction.Demand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermission(SecurityAction.InheritanceDemand, _
Level:=AspNetHostingPermissionLevel.Minimal)> _
Public Class TextDisplayWebPart
Inherits WebPart
Private _contentText As String = Nothing
Private _fontStyle As String = Nothing
Private input As TextBox
Private DisplayContent As Label
Private lineBreak As Literal
<Personalizable(), WebBrowsable()> _
Public Property ContentText() As String
Get
Return _contentText
End Get
Set(ByVal value As String)
_contentText = value
End Set
End Property
Protected Overrides Sub CreateChildControls()
Controls.Clear()
DisplayContent = New Label()
DisplayContent.BackColor = Color.LightBlue
DisplayContent.Text = Me.ContentText
Me.Controls.Add(DisplayContent)
lineBreak = New Literal()
lineBreak.Text = "<br />"
Controls.Add(lineBreak)
input = New TextBox()
Me.Controls.Add(input)
Dim update As New Button()
update.Text = "Set Label Content"
AddHandler update.Click, AddressOf Me.submit_Click
Me.Controls.Add(update)
End Sub
Private Sub submit_Click(ByVal sender As Object, _
ByVal e As EventArgs)
' Update the label string.
If String.IsNullOrEmpty(input.Text) = False Then
_contentText = Context.Server.HtmlEncode(input.Text) + "<br />"
input.Text = String.Empty
DisplayContent.Text = Me.ContentText
End If
End Sub
End Class
End Namespace
Now run the code example. Load the Web page in a browser. The first step is to edit the UserInfoWebPart
control. Use the Display Mode drop-down list control and select Edit to switch the page to edit mode. Click the verbs menu of the UserInfoWebPart
control (the downward arrow in the title bar), and then click Edit. When the editing UI appears, several editing controls appear below the UserInfoWebPart
control that you can use to edit its field values. Edit some fields, click OK, and then use the Display Mode drop-down to return the page to browse mode.
The second step is to export a .WebPart description file for the UserInfoWebPart
control. Click the verbs menu on the custom control (represented by the downward arrow in the title bar), and click Export. Follow the instructions to save a .WebPart description file for the control. Now close the Web page, and edit the page source in an editor. Delete the <aspSample:userinfowebpart>
control declaration element, then save and close the file. (You are doing this step to simulate a user who does not yet have the UserInfoWebPart
control, so you can import the control to the page).
Load the Web page again in a browser. The UserInfoWebPart
control should not appear, because you removed it. Use the Display Mode drop-down list control and select Catalog to switch the page to catalog mode. In the ImportCatalogPart control, click the Browse button, and browse to the .WebPart file you created, then click the Upload button. A reference to the control should appear with a check box next to it. Select the check box, then click Add to add the control to the page.
While you are in this view of the page, click the Update ImportCatalogPart button near the bottom of the page to see the effect of programmatically updating a number of property values on the ImportCatalogPart control. After clicking the button, observe how the various properties are changed in the UI.
Finally, click Close to exit catalog mode and return the page to browse mode. The UserInfoWebPart
control should now appear in the page, containing the values that it had when you exported it earlier.
Remarks
The ImportCatalogPart control enables users to import a description file that describes settings on a WebPart control or server control that a user wants to add to a WebPartZoneBase zone.
After a user imports a description file, the WebPart control referenced in the file appears within the ImportCatalogPart control, and a user can add the control to the page.
The description file is not the same as the control itself. It is an XML file that ends with a .WebPart extension and contains name/value pairs--mostly property values--that describe the state of the control. The description file is created according to a specified XML format, as described in the topic Web Parts Control Description Files.
As for the control that the description file refers to, it can either be compiled into an assembly, or it can be a user control defined in an .ascx file. In either case, the control referenced in an imported description file must exist on the Web server that hosts the page that is attempting to import the control. The description file references the control name and the assembly (or file) that contains the control, and the description file contains settings that affect the control's property values, appearance, and behavior.
The ImportCatalogPart control enables users to share settings on controls. A complex control can have many properties and settings. For example, in a typical intranet site within a large company, a custom WebPart control might contain a number of properties that hold values specific to the users' environment, such as their database connections, departmental information, and so on. The control might also contain a number of properties that affect its appearance. One user could personalize the control on a particular site and get it working properly, export a description file for the control, and then share the description file with other users, who could import the file to add the fully configured control to other intranet sites that they are allowed to personalize. As long as the compiled assembly or user control file containing the control exists on the Web server that is hosting their site, users can add the control to other Web sites.
The mechanism by which users import a description file (and hence its associated server control) into a Web page is the ImportCatalogPart control, which a page developer must add to a Web page. When a user switches the page to catalog display mode, the ImportCatalogPart control appears, and the user can user this control to browse to the .WebPart description file corresponding to the server control they want to import. Following the UI and instructions provided by the ImportCatalogPart control, a user is able to add the desired server control into the Web page, with its appearance and properties fully configured as specified in the imported description file.
Before a WebPart control's description file can be imported, a user must first create (export) the file based on an existing WebPart control. A description file can be exported for a control if the following conditions are met:
The control has properties marked with the
Personalizable
attribute.The Web.config file has the
enableExport
attribute value set totrue
on the<webParts>
element.A developer sets the value of the ExportMode property on the control to a value other than the default value of None, which prohibits export. If the ExportMode property value is set to NonSensitiveData, any property that contains an IsSensitive parameter with a
Personalizable
attribute is not exported when a user exports a description file. This enables control developers to prevent sensitive data, such as connection strings, from being exported in certain situations.
A user can export a control that has been enabled for export by clicking the export verb that appears in the verbs menu of the control, and following the instructions to save a .WebPart description file for the control. Other users can then import this file to configure their own instances of the control.
The ImportCatalogPart class contains several properties. The BrowseHelpText property contains text with instructions for users when they browse to locate the description file. The ImportedPartLabelText property contains text that serves as a label for the imported control as it appears within the ImportCatalogPart control. The PartImportErrorLabelText contains text that is displayed if an error occurs when a control description is being imported. The Title property overrides the base property to assign a default title for an ImportCatalogPart control if the developer does not assign a title. The UploadButtonText property contains the text for the button that the user clicks to upload the description file, and the UploadHelpText property contains the instructions for the upload process.
The ImportCatalogPart class also contains several unique methods. The GetAvailableWebPartDescriptions method retrieves a WebPartDescription object for each WebPart control in the catalog, which enables an ImportCatalogPart control to display information about each server control without having to create an instance of it. The GetWebPart method gets an instance of a particular WebPart control, based on the description passed to the method.
There are some inherent risks associated with using the ImportCatalogPart control. One example is the possibility of importing malicious data into your Web application through the description files used for importing. If someone has placed malicious script code as the value of a string property in the description file, then that script could potentially be executed when a user imports the description file and adds the referenced server control to a Web page. To minimize the risk of importing description files with malicious data, server controls that have string-typed properties should always encode the property data. Another risk involves importing types through description files (see Web Parts Control Description Files). A malicious user could submit requests to load many assemblies into the AppDomain, resulting in an excessive amount of memory being consumed.
To avoid the risks associated with import, you can disable the feature altogether by not using the import feature or the ImportCatalogPart control. Or you can limit what users have access to the control. You could do this programmatically, using role management (see Managing Authorization Using Roles). For instance, when the page loads, you could test to see whether a user is in a certain role, such as the administrator role. If the user is in the role, you could programmatically add the ImportCatalogPart control to the page for that user. You could also use a declarative approach to limit the set of users that can use the ImportCatalogPart control. Within your web page that contains a catalog, you could place two CatalogZone controls: one for users who can import, and one for those who cannot. The zone for users who can import would contain the ImportCatalogPart control. The zone itself could be placed inside of a LoginView control, which would enable you to limit use of the control in the zone to only those authenticated users or roles that you specify.
Constructors
ImportCatalogPart() |
Initializes a new instance of the ImportCatalogPart class. |
Properties
AccessKey |
Gets or sets the access key that allows you to quickly navigate to the Web server control. (Inherited from WebControl) |
Adapter |
Gets the browser-specific adapter for the control. (Inherited from Control) |
AppRelativeTemplateSourceDirectory |
Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control. (Inherited from Control) |
Attributes |
Gets the collection of arbitrary attributes (for rendering only) that do not correspond to properties on the control. (Inherited from WebControl) |
BackColor |
Gets or sets the background color of the Web server control. (Inherited from WebControl) |
BackImageUrl |
Gets or sets the URL of the background image for the panel control. (Inherited from Panel) |
BindingContainer |
Gets the control that contains this control's data binding. (Inherited from Control) |
BorderColor |
Gets or sets the border color of the Web control. (Inherited from WebControl) |
BorderStyle |
Gets or sets the border style of the Web server control. (Inherited from WebControl) |
BorderWidth |
Gets or sets the border width of the Web server control. (Inherited from WebControl) |
BrowseHelpText |
Gets or sets a text message that instructs users to browse to the location of a description file. |
ChildControlsCreated |
Gets a value that indicates whether the server control's child controls have been created. (Inherited from Control) |
ChromeState |
Gets or sets whether a part control is in a minimized or normal state. (Inherited from Part) |
ChromeType |
Gets or sets the type of border that frames a Web Parts control. (Inherited from Part) |
ClientID |
Gets the control ID for HTML markup that is generated by ASP.NET. (Inherited from Control) |
ClientIDMode |
Gets or sets the algorithm that is used to generate the value of the ClientID property. (Inherited from Control) |
ClientIDSeparator |
Gets a character value representing the separator character used in the ClientID property. (Inherited from Control) |
Context |
Gets the HttpContext object associated with the server control for the current Web request. (Inherited from Control) |
Controls |
Gets a ControlCollection object that contains the child controls for a specified server control in the user interface hierarchy. (Inherited from Part) |
ControlStyle |
Gets the style of the Web server control. This property is used primarily by control developers. (Inherited from WebControl) |
ControlStyleCreated |
Gets a value indicating whether a Style object has been created for the ControlStyle property. This property is primarily used by control developers. (Inherited from WebControl) |
CssClass |
Gets or sets the Cascading Style Sheet (CSS) class rendered by the Web server control on the client. (Inherited from WebControl) |
DataItemContainer |
Gets a reference to the naming container if the naming container implements IDataItemContainer. (Inherited from Control) |
DataKeysContainer |
Gets a reference to the naming container if the naming container implements IDataKeysControl. (Inherited from Control) |
DefaultButton |
Gets or sets what button in the user interface (UI) is treated as the default button that receives the focus when form that contains the button is rendered. This property is not intended to be called from page developer code. |
Description |
Gets or sets a brief phrase that summarizes what the part control does, for use in ToolTips and catalogs of part controls. (Inherited from Part) |
DesignMode |
Gets a value indicating whether a control is being used on a design surface. (Inherited from Control) |
Direction |
Gets or sets the direction in which to display controls that include text in a Panel control. (Inherited from Panel) |
DisplayTitle |
Gets a string that contains the actual current title of a CatalogPart control. (Inherited from CatalogPart) |
Enabled |
Gets or sets a value indicating whether the Web server control is enabled. (Inherited from WebControl) |
EnableTheming |
Gets or sets a value indicating whether themes apply to this control. (Inherited from WebControl) |
EnableViewState |
Gets or sets a value indicating whether the server control persists its view state, and the view state of any child controls it contains, to the requesting client. (Inherited from Control) |
Events |
Gets a list of event handler delegates for the control. This property is read-only. (Inherited from Control) |
Font |
Gets the font properties associated with the Web server control. (Inherited from WebControl) |
ForeColor |
Gets or sets the foreground color (typically the color of the text) of the Web server control. (Inherited from WebControl) |
GroupingText |
Gets or sets the caption for the group of controls that is contained in the panel control. (Inherited from Panel) |
HasAttributes |
Gets a value indicating whether the control has attributes set. (Inherited from WebControl) |
HasChildViewState |
Gets a value indicating whether the current server control's child controls have any saved view-state settings. (Inherited from Control) |
Height |
Gets or sets the height of the Web server control. (Inherited from WebControl) |
HorizontalAlign |
Gets or sets the horizontal alignment of the contents within the panel. (Inherited from Panel) |
ID |
Gets or sets the programmatic identifier assigned to the server control. (Inherited from Control) |
IdSeparator |
Gets the character used to separate control identifiers. (Inherited from Control) |
ImportedPartLabelText |
Gets or sets text displayed after a user imports a description file to represent or describe the imported control within the catalog of imported controls. |
IsChildControlStateCleared |
Gets a value indicating whether controls contained within this control have control state. (Inherited from Control) |
IsEnabled |
Gets a value indicating whether the control is enabled. (Inherited from WebControl) |
IsTrackingViewState |
Gets a value that indicates whether the server control is saving changes to its view state. (Inherited from Control) |
IsViewStateEnabled |
Gets a value indicating whether view state is enabled for this control. (Inherited from Control) |
LoadViewStateByID |
Gets a value indicating whether the control participates in loading its view state by ID instead of index. (Inherited from Control) |
NamingContainer |
Gets a reference to the server control's naming container, which creates a unique namespace for differentiating between server controls with the same ID property value. (Inherited from Control) |
Page |
Gets a reference to the Page instance that contains the server control. (Inherited from Control) |
Parent |
Gets a reference to the server control's parent control in the page control hierarchy. (Inherited from Control) |
PartImportErrorLabelText |
Gets or sets an error message that is displayed if an error occurs during the import process. |
RenderingCompatibility |
Gets a value that specifies the ASP.NET version that rendered HTML will be compatible with. (Inherited from Control) |
ScrollBars |
Gets or sets the visibility and position of scroll bars in a Panel control. (Inherited from Panel) |
Site |
Gets information about the container that hosts the current control when rendered on a design surface. (Inherited from Control) |
SkinID |
Gets or sets the skin to apply to the control. (Inherited from WebControl) |
Style |
Gets a collection of text attributes that will be rendered as a style attribute on the outer tag of the Web server control. (Inherited from WebControl) |
SupportsDisabledAttribute |
Gets a value that indicates whether the control should set the |
TabIndex |
Gets or sets the tab index of the Web server control. (Inherited from WebControl) |
TagKey |
Gets the HtmlTextWriterTag value that corresponds to this Web server control. This property is used primarily by control developers. (Inherited from WebControl) |
TagName |
Gets the name of the control tag. This property is used primarily by control developers. (Inherited from WebControl) |
TemplateControl |
Gets or sets a reference to the template that contains this control. (Inherited from Control) |
TemplateSourceDirectory |
Gets the virtual directory of the Page or UserControl that contains the current server control. (Inherited from Control) |
Title |
Gets or sets the title that appears in the title bar of an ImportCatalogPart control. |
ToolTip |
Gets or sets the text displayed when the mouse pointer hovers over the Web server control. (Inherited from WebControl) |
UniqueID |
Gets the unique, hierarchically qualified identifier for the server control. (Inherited from Control) |
UploadButtonText |
Gets or sets the text for the Button control that initiates the upload of a description file. |
UploadHelpText |
Gets or sets the text of the message that tells the user how to upload a description file. |
ValidateRequestMode |
Gets or sets a value that indicates whether the control checks client input from the browser for potentially dangerous values. (Inherited from Control) |
ViewState |
Gets a dictionary of state information that allows you to save and restore the view state of a server control across multiple requests for the same page. (Inherited from Control) |
ViewStateIgnoresCase |
Gets a value that indicates whether the StateBag object is case-insensitive. (Inherited from Control) |
ViewStateMode |
Gets or sets the view-state mode of this control. (Inherited from Control) |
Visible |
Gets or sets a value that indicates whether a server control is rendered as UI on the page. (Inherited from Control) |
WebPartManager |
Gets a reference to the current instance of the WebPartManager class. (Inherited from CatalogPart) |
Width |
Gets or sets the width of the Web server control. (Inherited from WebControl) |
Wrap |
Gets or sets a value indicating whether the content wraps within the panel. (Inherited from Panel) |
Zone |
Gets a reference to the CatalogZoneBase zone that contains a CatalogPart control. (Inherited from CatalogPart) |
Methods
AddAttributesToRender(HtmlTextWriter) |
Adds information about the background image, alignment, wrap, and direction to the list of attributes to render. (Inherited from Panel) |
AddedControl(Control, Int32) |
Called after a child control is added to the Controls collection of the Control object. (Inherited from Control) |
AddParsedSubObject(Object) |
Notifies the server control that an element, either XML or HTML, was parsed, and adds the element to the server control's ControlCollection object. (Inherited from Control) |
ApplyStyle(Style) |
Copies any nonblank elements of the specified style to the Web control, overwriting any existing style elements of the control. This method is primarily used by control developers. (Inherited from WebControl) |
ApplyStyleSheetSkin(Page) |
Applies the style properties defined in the page style sheet to the control. (Inherited from Control) |
BeginRenderTracing(TextWriter, Object) |
Begins design-time tracing of rendering data. (Inherited from Control) |
BuildProfileTree(String, Boolean) |
Gathers information about the server control and delivers it to the Trace property to be displayed when tracing is enabled for the page. (Inherited from Control) |
ClearCachedClientID() |
Sets the cached ClientID value to |
ClearChildControlState() |
Deletes the control-state information for the server control's child controls. (Inherited from Control) |
ClearChildState() |
Deletes the view-state and control-state information for all the server control's child controls. (Inherited from Control) |
ClearChildViewState() |
Deletes the view-state information for all the server control's child controls. (Inherited from Control) |
ClearEffectiveClientIDMode() |
Sets the ClientIDMode property of the current control instance and of any child controls to Inherit. (Inherited from Control) |
CopyBaseAttributes(WebControl) |
Copies the properties not encapsulated by the Style object from the specified Web server control to the Web server control that this method is called from. This method is used primarily by control developers. (Inherited from WebControl) |
CreateChildControls() |
Called by the ASP.NET page framework to notify server controls that use composition-based implementation to create any child controls they contain in preparation for posting back or rendering. (Inherited from Control) |
CreateControlCollection() |
Creates a new ControlCollection object to hold the child controls (both literal and server) of the server control. (Inherited from Control) |
CreateControlStyle() |
Creates a style object that is used internally by the Panel control to implement all style related properties. (Inherited from Panel) |
DataBind() |
Binds a data source to the invoked server control and all its child controls. (Inherited from Part) |
DataBind(Boolean) |
Binds a data source to the invoked server control and all its child controls with an option to raise the DataBinding event. (Inherited from Control) |
DataBindChildren() |
Binds a data source to the server control's child controls. (Inherited from Control) |
Dispose() |
Enables a server control to perform final clean up before it is released from memory. (Inherited from Control) |
EndRenderTracing(TextWriter, Object) |
Ends design-time tracing of rendering data. (Inherited from Control) |
EnsureChildControls() |
Determines whether the server control contains child controls. If it does not, it creates child controls. (Inherited from Control) |
EnsureID() |
Creates an identifier for controls that do not have an identifier assigned. (Inherited from Control) |
Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
FindControl(String) |
Searches the current naming container for a server control with the specified |
FindControl(String, Int32) |
Searches the current naming container for a server control with the specified |
Focus() |
Sets input focus to a control. (Inherited from Control) |
GetAvailableWebPartDescriptions() |
Returns a collection of descriptions of the available WebPart controls in a catalog. |
GetDesignModeState() |
Retrieves the current state of a CatalogPart control's parent zone. (Inherited from CatalogPart) |
GetHashCode() |
Serves as the default hash function. (Inherited from Object) |
GetRouteUrl(Object) |
Gets the URL that corresponds to a set of route parameters. (Inherited from Control) |
GetRouteUrl(RouteValueDictionary) |
Gets the URL that corresponds to a set of route parameters. (Inherited from Control) |
GetRouteUrl(String, Object) |
Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control) |
GetRouteUrl(String, RouteValueDictionary) |
Gets the URL that corresponds to a set of route parameters and a route name. (Inherited from Control) |
GetType() |
Gets the Type of the current instance. (Inherited from Object) |
GetUniqueIDRelativeTo(Control) |
Returns the prefixed portion of the UniqueID property of the specified control. (Inherited from Control) |
GetWebPart(WebPartDescription) |
Returns a reference to a WebPart control based on the values in the description passed into the method. |
HasControls() |
Determines if the server control contains any child controls. (Inherited from Control) |
HasEvents() |
Returns a value indicating whether events are registered for the control or any child controls. (Inherited from Control) |
IsLiteralContent() |
Determines if the server control holds only literal content. (Inherited from Control) |
LoadControlState(Object) |
Restores control-state information from a previous page request that was saved by the SaveControlState() method. (Inherited from Control) |
LoadViewState(Object) |
Restores view-state information from a previous request that was saved with the SaveViewState() method. (Inherited from WebControl) |
MapPathSecure(String) |
Retrieves the physical path that a virtual path, either absolute or relative, maps to. (Inherited from Control) |
MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
MergeStyle(Style) |
Copies any nonblank elements of the specified style to the Web control, but will not overwrite any existing style elements of the control. This method is used primarily by control developers. (Inherited from WebControl) |
OnBubbleEvent(Object, EventArgs) |
Determines whether the event for the server control is passed up the page's UI server control hierarchy. (Inherited from Control) |
OnDataBinding(EventArgs) |
Raises the DataBinding event. (Inherited from Control) |
OnInit(EventArgs) |
Raises the Init event. (Inherited from Control) |
OnLoad(EventArgs) |
Raises the Load event. (Inherited from Control) |
OnPreRender(EventArgs) |
Raises the PreRender event. (Inherited from CatalogPart) |
OnUnload(EventArgs) |
Raises the Unload event. (Inherited from Control) |
OpenFile(String) |
Gets a Stream used to read a file. (Inherited from Control) |
RaiseBubbleEvent(Object, EventArgs) |
Assigns any sources of the event and its information to the control's parent. (Inherited from Control) |
RemovedControl(Control) |
Called after a child control is removed from the Controls collection of the Control object. (Inherited from Control) |
Render(HtmlTextWriter) |
Renders the control to the specified HTML writer. (Inherited from WebControl) |
RenderBeginTag(HtmlTextWriter) |
Renders the HTML opening tag of the Panel control to the specified writer. (Inherited from Panel) |
RenderChildren(HtmlTextWriter) |
Outputs the content of a server control's children to a provided HtmlTextWriter object, which writes the content to be rendered on the client. (Inherited from Control) |
RenderContents(HtmlTextWriter) |
Renders the contents of the control to the specified writer. This method is used primarily by control developers. (Inherited from WebControl) |
RenderControl(HtmlTextWriter) |
Outputs server control content to a provided HtmlTextWriter object and stores tracing information about the control if tracing is enabled. (Inherited from Control) |
RenderControl(HtmlTextWriter, ControlAdapter) |
Outputs server control content to a provided HtmlTextWriter object using a provided ControlAdapter object. (Inherited from Control) |
RenderEndTag(HtmlTextWriter) |
Renders the HTML closing tag of the Panel control into the specified writer. (Inherited from Panel) |
ResolveAdapter() |
Gets the control adapter responsible for rendering the specified control. (Inherited from Control) |
ResolveClientUrl(String) |
Gets a URL that can be used by the browser. (Inherited from Control) |
ResolveUrl(String) |
Converts a URL into one that is usable on the requesting client. (Inherited from Control) |
SaveControlState() |
Saves any server control state changes that have occurred since the time the page was posted back to the server. (Inherited from Control) |
SaveViewState() |
Saves any state that was modified after the TrackViewState() method was invoked. (Inherited from WebControl) |
SetDesignModeState(IDictionary) |
Sets design-time data for a control. (Inherited from CatalogPart) |
SetRenderMethodDelegate(RenderMethod) |
Assigns an event handler delegate to render the server control and its content into its parent control. (Inherited from Control) |
SetTraceData(Object, Object) |
Sets trace data for design-time tracing of rendering data, using the trace data key and the trace data value. (Inherited from Control) |
SetTraceData(Object, Object, Object) |
Sets trace data for design-time tracing of rendering data, using the traced object, the trace data key, and the trace data value. (Inherited from Control) |
ToString() |
Returns a string that represents the current object. (Inherited from Object) |
TrackViewState() |
Causes the control to track changes to its view state so they can be stored in the object's ViewState property. (Inherited from WebControl) |
Events
DataBinding |
Occurs when the server control binds to a data source. (Inherited from Control) |
Disposed |
Occurs when a server control is released from memory, which is the last stage of the server control lifecycle when an ASP.NET page is requested. (Inherited from Control) |
Init |
Occurs when the server control is initialized, which is the first step in its lifecycle. (Inherited from Control) |
Load |
Occurs when the server control is loaded into the Page object. (Inherited from Control) |
PreRender |
Occurs after the Control object is loaded but prior to rendering. (Inherited from Control) |
Unload |
Occurs when the server control is unloaded from memory. (Inherited from Control) |
Explicit Interface Implementations
IAttributeAccessor.GetAttribute(String) |
Gets an attribute of the Web control with the specified name. (Inherited from WebControl) |
IAttributeAccessor.SetAttribute(String, String) |
Sets an attribute of the Web control to the specified name and value. (Inherited from WebControl) |
ICompositeControlDesignerAccessor.RecreateChildControls() |
Allows the developer of a designer for a composite part control to recreate the control's child controls on the design surface. (Inherited from Part) |
IControlBuilderAccessor.ControlBuilder |
For a description of this member, see ControlBuilder. (Inherited from Control) |
IControlDesignerAccessor.GetDesignModeState() |
For a description of this member, see GetDesignModeState(). (Inherited from Control) |
IControlDesignerAccessor.SetDesignModeState(IDictionary) |
For a description of this member, see SetDesignModeState(IDictionary). (Inherited from Control) |
IControlDesignerAccessor.SetOwnerControl(Control) |
For a description of this member, see SetOwnerControl(Control). (Inherited from Control) |
IControlDesignerAccessor.UserData |
For a description of this member, see UserData. (Inherited from Control) |
IDataBindingsAccessor.DataBindings |
For a description of this member, see DataBindings. (Inherited from Control) |
IDataBindingsAccessor.HasDataBindings |
For a description of this member, see HasDataBindings. (Inherited from Control) |
IExpressionsAccessor.Expressions |
For a description of this member, see Expressions. (Inherited from Control) |
IExpressionsAccessor.HasExpressions |
For a description of this member, see HasExpressions. (Inherited from Control) |
IParserAccessor.AddParsedSubObject(Object) |
For a description of this member, see AddParsedSubObject(Object). (Inherited from Control) |
Extension Methods
FindDataSourceControl(Control) |
Returns the data source that is associated with the data control for the specified control. |
FindFieldTemplate(Control, String) |
Returns the field template for the specified column in the specified control's naming container. |
FindMetaTable(Control) |
Returns the metatable object for the containing data control. |
GetDefaultValues(INamingContainer) |
Gets the collection of the default values for the specified data control. |
GetMetaTable(INamingContainer) |
Gets the table metadata for the specified data control. |
SetMetaTable(INamingContainer, MetaTable) |
Sets the table metadata for the specified data control. |
SetMetaTable(INamingContainer, MetaTable, IDictionary<String,Object>) |
Sets the table metadata and default value mapping for the specified data control. |
SetMetaTable(INamingContainer, MetaTable, Object) |
Sets the table metadata and default value mapping for the specified data control. |
TryGetMetaTable(INamingContainer, MetaTable) |
Determines whether table metadata is available. |
EnableDynamicData(INamingContainer, Type) |
Enables Dynamic Data behavior for the specified data control. |
EnableDynamicData(INamingContainer, Type, IDictionary<String,Object>) |
Enables Dynamic Data behavior for the specified data control. |
EnableDynamicData(INamingContainer, Type, Object) |
Enables Dynamic Data behavior for the specified data control. |