CatalogZoneBase 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.
Serves as the base class for all zone controls that act as catalogs. Catalogs contain lists of WebPart controls that users can add to a Web page.
public ref class CatalogZoneBase abstract : System::Web::UI::WebControls::WebParts::ToolZone, System::Web::UI::IPostBackDataHandler
public abstract class CatalogZoneBase : System.Web.UI.WebControls.WebParts.ToolZone, System.Web.UI.IPostBackDataHandler
type CatalogZoneBase = class
inherit ToolZone
interface IPostBackDataHandler
Public MustInherit Class CatalogZoneBase
Inherits ToolZone
Implements IPostBackDataHandler
- Inheritance
- Derived
- Implements
Examples
The following code example demonstrates several declarative and programmatic uses of the CatalogZoneBase class. Because the class is abstract, the code examples use the derived CatalogZone class that ships with the Web Parts control set, demonstrating the properties and methods that it inherits from the CatalogZoneBase class.
The code example has four parts:
A user control that enables you to change display modes on the Web page.
A Web page that contains a reference to a CatalogZone control, and some code that demonstrates usage of some key CatalogZoneBase class members.
A custom WebPart control that is added to the custom CatalogZone control.
A description of how the example works in a browser.
The first part of this code example is the user control that enables you to change display modes on the page. 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 a Web page that contains a declarative reference to a CatalogZone control. Near the top of the page are two Register
directives--one for the user control, and one for the custom WebPart control. Notice that below the <asp:WebPartZone>
element is an <asp: CatalogZone>
element that contains declarative references to the custom WebPart control, and to an ASP.NET Calendar control. The zone also has a variety of tags and properties set to determine its appearance and behavior. Between the <script>
tags in the page is a variety of event-handling code, most of which demonstrates the various programmatic uses of the CatalogZoneBase members.
<%@ page language="c#" %>
<%@ register TagPrefix="uc1"
TagName="DisplayModeMenuCS"
Src="DisplayModeMenucs.ascx" %>
<%@ register tagprefix="aspSample"
Namespace="Samples.AspNet.CS.Controls"
Assembly="TextDisplayWebPartCS" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
WebPartManager manager;
protected void WebPartManager1_DisplayModeChanged(object sender,
WebPartDisplayModeEventArgs e)
{
if (e.OldDisplayMode.Name != "Catalog")
Panel1.Visible = true;
else
Panel1.Visible = false;
}
// <snippet3>
protected void Button1_Click(object sender, EventArgs e)
{
if (CatalogZone1.AddVerb.Enabled)
{
CatalogZone1.AddVerb.Enabled = false;
CatalogZone1.CloseVerb.Enabled = false;
}
else
{
CatalogZone1.AddVerb.Enabled = true;
CatalogZone1.CloseVerb.Enabled = true;
}
}
// </snippet3>
// <snippet4>
protected void Button2_Click(object sender, EventArgs e)
{
Label1.Text = "<h3>CatalogPart List</h3>";
foreach(CatalogPart part in CatalogZone1.CatalogParts)
{
Label1.Text += part.ID + "<br />";
}
}
// </snippet4>
// <snippet5>
protected void Button3_Click(object sender, EventArgs e)
{
CatalogZone1.SelectTargetZoneText = "Add to zone";
CatalogZone1.EmptyZoneText = "Zone is empty";
CatalogZone1.HeaderText = "My Updated Header";
CatalogZone1.InstructionText = "My Updated Instructions";
}
// </snippet5>
// <snippet6>
protected void Button4_Click(object sender, EventArgs e)
{
Label1.Text = CatalogZone1.SelectedCatalogPartID;
}
// </snippet6>
// <snippet7>
protected void Button5_Click(object sender, EventArgs e)
{
CatalogZone1.PartLinkStyle.ForeColor = System.Drawing.Color.Red;
CatalogZone1.SelectedPartLinkStyle.ForeColor =
System.Drawing.Color.Blue;
}
// </snippet7>
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>
CatalogZoneBase Example
</title>
</head>
<body>
<form id="form1" runat="server">
<asp:webpartmanager id="WebPartManager1" runat="server"
OnDisplayModeChanged="WebPartManager1_DisplayModeChanged" />
<uc1:DisplayModeMenuCS ID="DisplayModeMenu1" runat="server" />
<asp:webpartzone id="zone1" runat="server">
<zonetemplate>
<asp:BulletedList
ID="BulletedList1"
Runat="server"
DisplayMode="HyperLink"
Title="Favorite Links" >
<asp:ListItem Value="http://msdn.microsoft.com">
MSDN
</asp:ListItem>
<asp:ListItem Value="http://www.asp.net">
ASP.NET
</asp:ListItem>
<asp:ListItem Value="http://www.msn.com">
MSN
</asp:ListItem>
</asp:BulletedList>
</ZoneTemplate>
</asp:webpartzone>
<asp:CatalogZone ID="CatalogZone1" runat="server"
EmptyZoneText="No controls are in the zone."
HeaderText="My Web Parts Catalog"
InstructionText="Add Web Parts controls to the zone."
PartLinkStyle-Font-Italic="true"
SelectedPartLinkStyle-Font-Bold="true"
SelectTargetZoneText="Select zone"
AddVerb-Text="Add Control"
CloseVerb-Description="Close and return to browse mode."
SelectedCatalogPartID="Currently Selected CatalogPart ID.">
<ZoneTemplate>
<asp:DeclarativeCatalogPart ID="DeclarativeCatalogPart1"
runat="server">
<WebPartsTemplate>
<aspSample:TextDisplayWebPart
runat="server"
id="textwebpart"
title = "Text Content WebPart"
ExportMode="All"/>
<asp:Calendar id="calendar1" runat="server"
Title="My Calendar" />
</WebPartsTemplate>
</asp:DeclarativeCatalogPart>
<asp:PageCatalogPart ID="PageCatalogPart1" runat="server" />
<asp:ImportCatalogPart ID="ImportCatalogPart1" runat="server" />
</ZoneTemplate>
</asp:CatalogZone>
<hr />
<asp:CatalogZone ID="CatalogZone2" runat="server"
BorderWidth="2"
HeaderText="My Empty CatalogZone"
EmptyZoneText="No controls are in the zone." />
<hr />
<asp:Panel ID="Panel1" runat="server" Visible="false">
<asp:Button ID="Button1" runat="server" Width="200"
Text="Enable or Disable Verbs"
OnClick="Button1_Click" />
<br />
<asp:Button ID="Button2" runat="server" Width="200"
Text="List CatalogParts" OnClick="Button2_Click" />
<br />
<asp:Button ID="Button3" runat="server" Width="200"
Text="Set Zone Text Properties" OnClick="Button3_Click" />
<br />
<asp:Button ID="Button4" runat="server" Width="200"
Text="Show Selected CatalogPart ID" OnClick="Button4_Click" />
<br />
<asp:Button ID="Button5" runat="server" Width="200"
Text="Change Part Link Styles" OnClick="Button5_Click" />
<br />
<asp:Label ID="Label1" runat="server" Text="" /></asp:Panel>
</form>
</body>
</html>
<%@ page language="vb" %>
<%@ register TagPrefix="uc1"
TagName="DisplayModeMenuVB"
Src="DisplayModeMenuvb.ascx" %>
<%@ register tagprefix="aspSample"
Namespace="Samples.AspNet.VB.Controls"
Assembly="TextDisplayWebPartVB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Dim manager As WebPartManager
Protected Sub WebPartManager1_DisplayModeChanged(ByVal sender _
As Object, ByVal e As WebPartDisplayModeEventArgs)
If e.OldDisplayMode.Name <> "Catalog" Then
Panel1.Visible = True
Else
Panel1.Visible = False
End If
End Sub
' <snippet3>
Protected Sub Button1_Click(ByVal sender As Object, _
ByVal e As EventArgs)
If CatalogZone1.AddVerb.Enabled Then
CatalogZone1.AddVerb.Enabled = False
CatalogZone1.CloseVerb.Enabled = False
Else
CatalogZone1.AddVerb.Enabled = True
CatalogZone1.CloseVerb.Enabled = True
End If
End Sub
' </snippet3>
' <snippet4>
Protected Sub Button2_Click(ByVal sender As Object, _
ByVal e As EventArgs)
Label1.Text = "<h3>CatalogPart List</h3>"
Dim part As CatalogPart
For Each part In CatalogZone1.CatalogParts
Label1.Text += part.ID + "<br />"
Next part
End Sub
' </snippet4>
' <snippet5>
Protected Sub Button3_Click(ByVal sender As Object, _
ByVal e As EventArgs)
CatalogZone1.SelectTargetZoneText = "Add to zone"
CatalogZone1.EmptyZoneText = "Zone is empty"
CatalogZone1.HeaderText = "My Updated Header"
CatalogZone1.InstructionText = "My Updated Instructions"
End Sub
' </snippet5>
' <snippet6>
Protected Sub Button4_Click(ByVal sender As Object, _
ByVal e As EventArgs)
Label1.Text = CatalogZone1.SelectedCatalogPartID
End Sub
' </snippet6>
' <snippet7>
Protected Sub Button5_Click(ByVal sender As Object, _
ByVal e As EventArgs)
CatalogZone1.PartLinkStyle.ForeColor = _
System.Drawing.Color.Red
CatalogZone1.SelectedPartLinkStyle.ForeColor = _
System.Drawing.Color.Blue
End Sub
' </snippet7>
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>
CatalogZoneBase Example
</title>
</head>
<body>
<form id="form1" runat="server">
<asp:webpartmanager id="WebPartManager1" runat="server"
OnDisplayModeChanged="WebPartManager1_DisplayModeChanged" />
<uc1:DisplayModeMenuVB ID="DisplayModeMenu1" runat="server" />
<asp:webpartzone id="zone1" runat="server">
<zonetemplate>
<asp:BulletedList
ID="BulletedList1"
Runat="server"
DisplayMode="HyperLink"
Title="Favorite Links" >
<asp:ListItem Value="http://msdn.microsoft.com">
MSDN
</asp:ListItem>
<asp:ListItem Value="http://www.asp.net">
ASP.NET
</asp:ListItem>
<asp:ListItem Value="http://www.msn.com">
MSN
</asp:ListItem>
</asp:BulletedList>
</ZoneTemplate>
</asp:webpartzone>
<asp:CatalogZone ID="CatalogZone1" runat="server"
EmptyZoneText="No controls are in the zone."
HeaderText="My Web Parts Catalog"
InstructionText="Add Web Parts controls to the zone."
PartLinkStyle-Font-Italic="true"
SelectedPartLinkStyle-Font-Bold="true"
SelectTargetZoneText="Select zone"
AddVerb-Text="Add Control"
CloseVerb-Description="Close and return to browse mode."
SelectedCatalogPartID="Currently Selected CatalogPart ID.">
<ZoneTemplate>
<asp:DeclarativeCatalogPart ID="DeclarativeCatalogPart1"
runat="server">
<WebPartsTemplate>
<aspSample:TextDisplayWebPart
runat="server"
id="textwebpart"
title = "Text Content WebPart"
ExportMode="All"/>
<asp:Calendar id="calendar1" runat="server"
Title="My Calendar" />
</WebPartsTemplate>
</asp:DeclarativeCatalogPart>
<asp:PageCatalogPart ID="PageCatalogPart1" runat="server" />
<asp:ImportCatalogPart ID="ImportCatalogPart1" runat="server" />
</ZoneTemplate>
</asp:CatalogZone>
<hr />
<asp:CatalogZone ID="CatalogZone2" runat="server"
BorderWidth="2"
HeaderText="My Empty CatalogZone"
EmptyZoneText="No controls are in the zone." />
<hr />
<asp:Panel ID="Panel1" runat="server" Visible="false">
<asp:Button ID="Button1" runat="server" Width="200"
Text="Enable or Disable Verbs"
OnClick="Button1_Click" />
<br />
<asp:Button ID="Button2" runat="server" Width="200"
Text="List CatalogParts" OnClick="Button2_Click" />
<br />
<asp:Button ID="Button3" runat="server" Width="200"
Text="Set Zone Text Properties" OnClick="Button3_Click" />
<br />
<asp:Button ID="Button4" runat="server" Width="200"
Text="Show Selected CatalogPart ID" OnClick="Button4_Click" />
<br />
<asp:Button ID="Button5" runat="server" Width="200"
Text="Change Part Link Styles" OnClick="Button5_Click" />
<br />
<asp:Label ID="Label1" runat="server" Text="" /></asp:Panel>
</form>
</body>
</html>
The third part of the code example is the custom WebPart control named TextDisplayWebPart
. It is declared within the zone, and an end user can add it from the catalog to the page. 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. For a demonstration of both methods of compiling, see Walkthrough: Developing and Using a Custom Web Server 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 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 = 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 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 input.Text <> String.Empty Then
_contentText = input.Text + "<br />"
input.Text = String.Empty
DisplayContent.Text = Me.ContentText
End If
End Sub
End Class
End Namespace
Note that for the code example to work, there is a setting you must add in the Web.config file to enable exporting Web Parts description files. Ensure that you have a Web.config file in the same directory as the Web page for this code example. Within the <system.web>
section, make sure there is a <webParts>
element with an enableExport
attribute set to true
, as in the following markup.
<webParts enableExport="true">
...
</webParts>
When you load the page in a browser, you can select Catalog from the drop-down list box to switch to catalog display mode. When the catalog is visible, you can see the two server controls that can be added from the catalog to the page, and you can also note in the UI the effects of the declarative and programmatic uses of the CatalogZoneBase class members.
Remarks
The CatalogZoneBase class is a base class that inherits from the ToolZone class. It provides a base set of behaviors for derived zones.
The CatalogZoneBase class provides a unique user interface (UI) that enables users to add WebPart controls and other server controls to Web pages. Controls that derive from the CatalogZoneBase class, such as CatalogZone, are the controls actually placed on Web pages. They act as containers for other controls, known as CatalogPart controls, that create lists of server controls for users to add to a page. Zones that derive from the CatalogZoneBase class can appear only when the page is in catalog display mode.
Note
A CatalogZoneBase zone can contain only CatalogPart controls, and conversely, CatalogPart controls can reside only in CatalogZoneBase zones.
The mechanism for adding server controls to a catalog is the following set of three controls that derive from the base CatalogPart class.
Control | Description |
---|---|
PageCatalogPart | Maintains references to controls that have been closed on a page. These controls can be reopened (added back to the page) by users. |
DeclarativeCatalogPart | Contains references to controls that are declared in a Web Parts catalog in the markup of a Web page. These controls can be added to a Web page by users. |
ImportCatalogPart | Provides the UI for a user to upload a definition file to a catalog so that the control can be added to a Web page. Definition files are XML file with a .WebPart file name extension that import settings for a control. The control must be present on the server before the definition file can be imported. |
The CatalogZoneBase class has a number of properties that are useful for displaying catalogs of WebPart controls. The AddVerb property references the verb that adds a selected control from the catalog to the page, while the CloseVerb property references a verb that closes the catalog and returns the page's display mode to browse mode. The CatalogParts property references the collection of all CatalogPart controls in the zone. Several text-oriented properties, such as EmptyZoneText, HeaderText, and InstructionText, override base properties to provide default text appropriate for catalogs. The SelectTargetZoneText property contains the text alongside the drop-down list control that allows users to choose which zone a control will be added to.
Several other properties are included in the CatalogZoneBase class. The SelectedCatalogPartID property is a unique string identifier for the currently selected CatalogPart control. The ShowCatalogIcons property indicates whether to show the icons that can be associated with controls by setting the CatalogIconImageUrl property on a WebPart control.
The PartLinkStyle property contains style attributes for the links to the CatalogPart controls that are not currently selected in the zone. In contrast, the SelectedPartLinkStyle property contains style attributes for a link to the CatalogPart control that the user has currently selected in the zone.
In addition to the properties, there are also some methods in the CatalogZoneBase class, in addition to the standard event-handling and rendering methods inherited from other base controls, which are uniquely designed for the purpose of handling catalogs of controls. The CreateCatalogPartChrome method creates the chrome (peripheral UI elements such as a border, verbs, icons, and a title) that surrounds each CatalogPart control in the zone, and also handles the rendering for the controls. The CreateCatalogParts method is an abstract method; derived classes override it to create instances of all the CatalogPart controls contained in the zone. The InvalidateCatalogParts method can be called by a derived class if the collection of CatalogPart controls in the zone changes for some programmatic reason, and the derived class needs to recreate the collection. The LoadPostData method loads the previously existing state for the check boxes next to the WebPart controls in the catalog, whenever the page is posted back to the server; conversely, the SaveControlState method saves the state of the check boxes. Finally, the RenderCatalogPartLinks method provides all the rendering for the links to each CatalogPart control contained in the zone.
Notes to Implementers
If you want to develop a custom zone for hosting CatalogPart controls, you must determine whether you want to provide zone template support. A zone template is created by types that implement the ITemplate interface, and is necessary if you want to enable page developers using your custom zone to reference CatalogPart controls within your zone in the declarative markup of a Web page. If you need zone template support, you should inherit from the CatalogZone class. In contrast, if your custom zone and its CatalogPart controls are going to be self-contained, and they will be created programmatically without any options for page developers to specify controls declaratively in a zone template, then you can inherit directly from the CatalogZoneBase class. If you inherit from the CatalogZoneBase class, you must override the CreateCatalogParts() method, and add the WebPart or other server controls you want in your catalog to a CatalogPartCollection object.
Constructors
CatalogZoneBase() |
Initializes the class for use by an inherited class instance. This constructor can only be called by an inherited 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) |
AddVerb |
Gets a reference to a WebPartVerb object that enables end users to add controls from a catalog to a Web Parts page. |
AppRelativeTemplateSourceDirectory |
Gets or sets the application-relative virtual directory of the Page or UserControl object that contains this control. (Inherited from Control) |
AssociatedDisplayModes |
Gets the collection of WebPartDisplayMode objects that are associated with a particular ToolZone zone. (Inherited from ToolZone) |
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 to a background image for a zone. (Inherited from WebZone) |
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) |
CatalogPartChrome |
Gets a reference to the instance of the CatalogPartChrome class associated with the CatalogZoneBase zone. |
CatalogParts |
Gets a collection of all the CatalogPart controls contained in a CatalogZoneBase zone. |
ChildControlsCreated |
Gets a value that indicates whether the server control's child controls have been created. (Inherited from Control) |
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) |
CloseVerb |
Gets a reference to a WebPartVerb object that enables end users to close the catalog user interface (UI) and return the page to normal browse mode. |
Context |
Gets the HttpContext object associated with the server control for the current Web request. (Inherited from Control) |
Controls |
Gets a ControlCollection object that represents the child controls in a CompositeControl. (Inherited from CompositeControl) |
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) |
DesignMode |
Gets a value indicating whether a control is being used on a design surface. (Inherited from Control) |
Display |
Gets a value that indicates whether a ToolZone control is currently displayed. (Inherited from ToolZone) |
EditUIStyle |
Gets the style attributes for the editable controls contained in a ToolZone control. (Inherited from ToolZone) |
EmptyZoneText |
Gets or sets a message that appears when a zone contains no controls. |
EmptyZoneTextStyle |
Gets the style attributes for the placeholder text in an empty zone. (Inherited from WebZone) |
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) |
ErrorStyle |
Gets the style attributes for rendering the error message that is displayed if a WebPart control cannot be loaded or created. (Inherited from WebZone) |
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) |
FooterStyle |
Gets the style attributes for the contents of a zone's footer area. (Inherited from WebZone) |
ForeColor |
Gets or sets the foreground color (typically the color of the text) of the Web server control. (Inherited from WebControl) |
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) |
HasFooter |
Gets a value indicating whether a zone has a footer area. (Inherited from WebZone) |
HasHeader |
Gets a value indicating whether a zone has a header area. (Inherited from WebZone) |
HeaderCloseVerb |
Gets a reference to the WebPartVerb object in the header of a ToolZone control that is used to close the control. (Inherited from ToolZone) |
HeaderStyle |
Gets the style attributes for the contents of a zone's header area. (Inherited from WebZone) |
HeaderText |
Gets or sets the text for the header area of a zone. |
HeaderVerbStyle |
Gets the style attributes for all header verbs displayed in a ToolZone control. (Inherited from ToolZone) |
Height |
Gets or sets the height of the Web server control. (Inherited from WebControl) |
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) |
InstructionText |
Gets or sets the text in a zone that provides directions for end users. |
InstructionTextStyle |
Gets the style attributes for the instruction text that appears at the top of a ToolZone control. (Inherited from ToolZone) |
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) |
LabelStyle |
Gets the style attributes for the contents of the labels that appear alongside the editing controls within a ToolZone control. The derived ToolZone controls, such as CatalogZone and EditorZone, apply the styles to the labels. (Inherited from ToolZone) |
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) |
Padding |
Gets or sets the cell padding attributes on the table that contains the WebPart controls in a zone. (Inherited from WebZone) |
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) |
PartChromePadding |
Gets or sets the distance between the contents of a WebPart control and the border of the control. (Inherited from WebZone) |
PartChromeStyle |
Gets style characteristics that apply to the borders of Web Parts controls contained by a zone. (Inherited from WebZone) |
PartChromeType |
Gets or sets the type of border that frames Web Parts controls contained by a zone. (Inherited from WebZone) |
PartLinkStyle |
Gets an object that contains style attributes for the CatalogPart controls that are not currently selected in the zone. |
PartStyle |
Gets style characteristics that apply to the border and contents of each Web Parts control contained by a zone. (Inherited from WebZone) |
PartTitleStyle |
Gets style attributes for the title bar content for each Web Parts control contained by a zone. (Inherited from WebZone) |
RenderClientScript |
Gets a value that indicates whether to render client script on a Web Parts page. (Inherited from WebZone) |
RenderingCompatibility |
Gets a value that specifies the ASP.NET version that rendered HTML will be compatible with. (Inherited from Control) |
SelectedCatalogPartID |
Gets or sets a string as an identifier for the currently selected CatalogPart control in a zone. |
SelectedPartLinkStyle |
Gets an object that contains style attributes for the CatalogPart control that is currently selected in the zone. |
SelectTargetZoneText |
Gets or sets the text alongside the control in the catalog user interface (UI) that allows users to choose which zone to add their selected controls to. |
ShowCatalogIcons |
Gets or sets a value that indicates whether server controls in the catalog display their associated icons in the catalog. |
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 WebZone) |
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) |
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) |
ValidateRequestMode |
Gets or sets a value that indicates whether the control checks client input from the browser for potentially dangerous values. (Inherited from Control) |
VerbButtonType |
Gets or sets what kind of button is used to represent verbs in a zone. (Inherited from WebZone) |
VerbStyle |
Gets the style attributes for the user interface (UI) verbs associated with Web Parts controls in a zone. (Inherited from WebZone) |
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 a user interface (UI) element on the page. (Inherited from ToolZone) |
WebPartManager |
Gets a reference to the WebPartManager control associated with a WebZone control instance on a Web Parts page. (Inherited from WebZone) |
Width |
Gets or sets the width of the Web server control. (Inherited from WebControl) |
Methods
AddAttributesToRender(HtmlTextWriter) |
Adds HTML attributes and styles that need to be rendered to the specified HtmlTextWriterTag. This method is used primarily by control developers. (Inherited from WebControl) |
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) |
Close() |
Switches the Web page from catalog display mode to normal browse mode. |
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) |
CreateCatalogPartChrome() |
Creates an instance of a CatalogPartChrome object used to render the peripheral user interface (UI) elements for CatalogPart controls in a zone. |
CreateCatalogParts() |
Provides a base method declaration that derived zones can override to handle the details of creating the CatalogPart controls contained in a zone. |
CreateChildControls() |
Creates the set of child controls associated with a CatalogZoneBase zone. |
CreateControlCollection() |
Creates a new ControlCollection object to hold the child controls (both literal and server) of the server control. (Inherited from Control) |
CreateControlStyle() |
Creates the style object that is used internally by the WebControl class to implement all style related properties. This method is used primarily by control developers. (Inherited from WebControl) |
DataBind() |
Binds a data source to the CompositeControl and all its child controls. (Inherited from CompositeControl) |
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) |
GetDesignModeState() |
Gets design-time data for a control. (Inherited from Control) |
GetEffectiveChromeType(Part) |
Returns the actual or effective current PartChromeType value of a WebPart control, given the PartChromeType property of the zone and the current display mode of the Web Parts page. (Inherited from WebZone) |
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) |
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) |
InvalidateCatalogParts() |
Destroys the collection of CatalogPart controls associated with a CatalogZoneBase zone. |
IsLiteralContent() |
Determines if the server control holds only literal content. (Inherited from Control) |
LoadControlState(Object) |
Loads the state from a previous page request for control properties that should persist across postbacks even when view state is disabled on the control. |
LoadPostData(String, NameValueCollection) |
Processes the state of the check boxes that correspond to the WebPart controls in the catalog, when the page is posted back to the server. |
LoadViewState(Object) |
Loads previously saved state information for a zone. |
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) |
OnDisplayModeChanged(Object, WebPartDisplayModeEventArgs) |
Provides a base method declaration that derived ToolZone controls can override to handle the details of changing page display modes for a specialized zone. (Inherited from ToolZone) |
OnInit(EventArgs) |
Registers the page object so that the page requires control state. |
OnLoad(EventArgs) |
Raises the Load event. (Inherited from Control) |
OnPreRender(EventArgs) |
Raises the PreRender event and registers the page object so that it requires postbacks. |
OnSelectedWebPartChanged(Object, WebPartEventArgs) |
Provides a base method declaration that derived ToolZone controls can override to handle the event of changing which Web Parts control is selected within a specialized zone. (Inherited from ToolZone) |
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) |
RaisePostBackEvent(String) |
Carries out the actions associated with one of the zone verbs, or raises an event that posts back to the server. |
RecreateChildControls() |
Recreates the child controls in a control derived from CompositeControl. (Inherited from CompositeControl) |
RemovedControl(Control) |
Called after a child control is removed from the Controls collection of the Control object. (Inherited from Control) |
Render(HtmlTextWriter) |
Renders the zone to the specified HtmlTextWriter object. |
RenderBeginTag(HtmlTextWriter) |
Renders the opening HTML tag of the zone control to the specified HtmlTextWriter object. (Inherited from WebZone) |
RenderBody(HtmlTextWriter) |
Overrides the base method to render the body area of a zone derived from the CatalogZoneBase class. |
RenderCatalogPartLinks(HtmlTextWriter) |
Renders the links to the individual CatalogPart controls in a CatalogZoneBase zone. |
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 entire contents of a zone control between the beginning and ending tags to the specified HtmlTextWriter object. (Inherited from WebZone) |
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 control into the specified writer. This method is used primarily by control developers. (Inherited from WebControl) |
RenderFooter(HtmlTextWriter) |
Renders the footer area for a CatalogZoneBase zone. |
RenderHeader(HtmlTextWriter) |
Overrides the base method to provide specialized rendering for the header area required by ToolZone controls. (Inherited from ToolZone) |
RenderVerb(HtmlTextWriter, WebPartVerb) |
Renders an individual verb with a ToolZone control. (Inherited from ToolZone) |
RenderVerbs(HtmlTextWriter) |
Renders the verbs in the footer area of a CatalogZoneBase zone. |
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 changes in a CatalogZoneBase control's state that occur after the Web page is posted back to the server. |
SaveViewState() |
Saves any view-state changes that have occurred after a page was posted back to the server. |
SetDesignModeState(IDictionary) |
Sets design-time data for a control. (Inherited from Control) |
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() |
Tracks changes to a zone control's view state. |
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
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. |