CheckBoxList.IRepeatInfoUser.RenderItem Yöntem
Tanım
Önemli
Bazı bilgiler ürünün ön sürümüyle ilgilidir ve sürüm öncesinde önemli değişiklikler yapılmış olabilir. Burada verilen bilgilerle ilgili olarak Microsoft açık veya zımni hiçbir garanti vermez.
Bu üyenin açıklaması için bkz RenderItem(ListItemType, Int32, RepeatInfo, HtmlTextWriter). .
virtual void System.Web.UI.WebControls.IRepeatInfoUser.RenderItem(System::Web::UI::WebControls::ListItemType itemType, int repeatIndex, System::Web::UI::WebControls::RepeatInfo ^ repeatInfo, System::Web::UI::HtmlTextWriter ^ writer) = System::Web::UI::WebControls::IRepeatInfoUser::RenderItem;
void IRepeatInfoUser.RenderItem (System.Web.UI.WebControls.ListItemType itemType, int repeatIndex, System.Web.UI.WebControls.RepeatInfo repeatInfo, System.Web.UI.HtmlTextWriter writer);
abstract member System.Web.UI.WebControls.IRepeatInfoUser.RenderItem : System.Web.UI.WebControls.ListItemType * int * System.Web.UI.WebControls.RepeatInfo * System.Web.UI.HtmlTextWriter -> unit
override this.System.Web.UI.WebControls.IRepeatInfoUser.RenderItem : System.Web.UI.WebControls.ListItemType * int * System.Web.UI.WebControls.RepeatInfo * System.Web.UI.HtmlTextWriter -> unit
Sub RenderItem (itemType As ListItemType, repeatIndex As Integer, repeatInfo As RepeatInfo, writer As HtmlTextWriter) Implements IRepeatInfoUser.RenderItem
Parametreler
- itemType
- ListItemType
ListItemType Numaralandırma değerlerinden biri.
- repeatIndex
- Int32
Öğenin liste denetimindeki konumunu belirten bir sıra dizini.
- repeatInfo
- RepeatInfo
RepeatInfo Listedeki öğeyi işlemek için kullanılan bilgileri temsil eden nesne.
- writer
- HtmlTextWriter
HtmlTextWriter İstemcide HTML içeriğini işlemek için çıkış akışını temsil eden bir nesne.
Uygulamalar
Örnekler
Aşağıdaki kod örneği, arabirim üyelerinin özel CheckBoxList bir nesnede IRepeatInfoUser nasıl kullanılacağını gösterir.
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<%@ Page language="c#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Custom CheckBoxList - IRepeatInfoUser - C# Example</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom CheckBoxList - IRepeatInfoUser - C# Example</h3>
<aspSample:CustomCheckBoxListIRepeatInfoUser
id="CheckBoxList1" runat="server">
<asp:ListItem Selected="True">Item 1</asp:ListItem>
<asp:ListItem>Item 2</asp:ListItem>
<asp:ListItem>Item 3</asp:ListItem>
<asp:ListItem>Item 4</asp:ListItem>
<asp:ListItem>Item 5</asp:ListItem>
<asp:ListItem>Item 6</asp:ListItem>
</aspSample:CustomCheckBoxListIRepeatInfoUser>
</form>
</body>
</html>
<%@ Page language="VB" %>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Custom CheckBoxList - IRepeatInfoUser - VB.NET Example</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom CheckBoxList - IRepeatInfoUser - VB.NET Example</h3>
<aspSample:CustomCheckBoxListIRepeatInfoUser id="CheckBoxList" runat="server">
<asp:ListItem Selected="True">Item 1</asp:ListItem>
<asp:ListItem>Item 2</asp:ListItem>
<asp:ListItem>Item 3</asp:ListItem>
<asp:ListItem>Item 4</asp:ListItem>
<asp:ListItem>Item 5</asp:ListItem>
<asp:ListItem>Item 6</asp:ListItem>
</aspSample:CustomCheckBoxListIRepeatInfoUser>
</form>
</body>
</html>
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Security.Permissions;
namespace Samples.AspNet.CS.Controls
{
[AspNetHostingPermission(SecurityAction.Demand, Level =
AspNetHostingPermissionLevel.Minimal)]
public class CustomCheckBoxListIRepeatInfoUser : CheckBoxList
{
private bool hasFooter;
private bool hasHeader;
private bool hasSeparators;
private int repeatedItemCount;
private Style itemStyleItem;
protected override void OnPreRender(System.EventArgs e)
{
// Call the base class's OnPreRender method
base.OnPreRender(e);
// Get a self-referencing IRepeatInfoUser object
IRepeatInfoUser repeatInfoUser = (IRepeatInfoUser)this;
// Get the IRepeatInfoUser members values.
hasFooter = repeatInfoUser.HasFooter;
hasHeader = repeatInfoUser.HasHeader;
hasSeparators = repeatInfoUser.HasSeparators;
repeatedItemCount = repeatInfoUser.RepeatedItemCount;
itemStyleItem = repeatInfoUser.GetItemStyle(ListItemType.Item, 0);
}
protected override void Render(HtmlTextWriter writer)
{
// Create and setup a RepeatInfo class.
RepeatInfo repeatInfo = new RepeatInfo();
repeatInfo.RepeatColumns = 0;
repeatInfo.RepeatDirection = RepeatDirection.Horizontal;
repeatInfo.RepeatLayout = RepeatLayout.Table;
// Get a self-referencing IRepeatInfoUser object
IRepeatInfoUser repeatInfoUser = (IRepeatInfoUser)this;
// Render the items using the above RepeatInfo class.
repeatInfoUser.RenderItem(ListItemType.Item, 0, repeatInfo, writer);
repeatInfoUser.RenderItem(ListItemType.Item, 1, repeatInfo, writer);
repeatInfoUser.RenderItem(ListItemType.Item, 2, repeatInfo, writer);
repeatInfoUser.RenderItem(ListItemType.Item, 3, repeatInfo, writer);
repeatInfoUser.RenderItem(ListItemType.Item, 4, repeatInfo, writer);
repeatInfoUser.RenderItem(ListItemType.Item, 5, repeatInfo, writer);
}
}
}
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports System.Security.Permissions
Namespace Samples.AspNet.VB.Controls
<AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
Public Class CustomCheckBoxListIRepeatInfoUser
Inherits CheckBoxList
Private _hasFooter As Boolean
Private _hasHeader As Boolean
Private _hasSeparators As Boolean
Private _repeatedItemCount As Integer
Private _itemStyleItem As Style
Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
' Call the base class's OnPreRender method
MyBase.OnPreRender(e)
' Get a self-referencing IRepeatInfoUser object
Dim repeatInfoUser As IRepeatInfoUser
repeatInfoUser = CType(Me, IRepeatInfoUser)
' Get the IRepeatInfoUser member values.
_hasFooter = repeatInfoUser.HasFooter
_hasHeader = repeatInfoUser.HasHeader
_hasSeparators = repeatInfoUser.HasSeparators
_repeatedItemCount = repeatInfoUser.RepeatedItemCount
_itemStyleItem = repeatInfoUser.GetItemStyle(ListItemType.Item, 0)
End Sub
Protected Overrides Sub Render(ByVal writer As System.Web.UI.HtmlTextWriter)
' Create and setup a RepeatInfo class.
Dim repeatInfo As New RepeatInfo
repeatInfo.RepeatColumns = 0
repeatInfo.RepeatDirection = RepeatDirection.Horizontal
repeatInfo.RepeatLayout = RepeatLayout.Table
' Get a self-referencing IRepeatInfoUser object
Dim repeatInfoUser As IRepeatInfoUser
repeatInfoUser = CType(Me, IRepeatInfoUser)
' Render the items using the above RepeatInfo and IRepeatInfoUser classes.
repeatInfoUser.RenderItem(ListItemType.Item, 0, repeatInfo, writer)
repeatInfoUser.RenderItem(ListItemType.Item, 1, repeatInfo, writer)
repeatInfoUser.RenderItem(ListItemType.Item, 2, repeatInfo, writer)
repeatInfoUser.RenderItem(ListItemType.Item, 3, repeatInfo, writer)
repeatInfoUser.RenderItem(ListItemType.Item, 4, repeatInfo, writer)
repeatInfoUser.RenderItem(ListItemType.Item, 5, repeatInfo, writer)
End Sub
End Class
End Namespace
Açıklamalar
Genellikle, bir CheckBoxList nesnedeki CheckBoxList.RenderItem öğeleri işlemek için yöntemini kullanmanız gerekir.
IRepeatInfoUser.RenderItem yöntemi açık bir arabirim üyesi uygulamasıdır. Yalnızca örnek bir IRepeatInfoUser arabirime CheckBoxList yayınlandığında kullanılabilir.
Devralanlara Notlar
Bir nesnedeki öğeleri işlemek için özel bir CheckBoxList uygulama tanımlamak için, üyeyi RenderItem(ListItemType, Int32, RepeatInfo, HtmlTextWriter) geçersiz kılın. Açık arabirim uygulaması, denetimdeki RenderItem(ListItemType, Int32, RepeatInfo, HtmlTextWriter) bir öğeyi işlemek için yöntemini çağırır.