CheckBoxList.IRepeatInfoUser.GetItemStyle(ListItemType, Int32) Method
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.
For a description of this member, see GetItemStyle(ListItemType, Int32).
virtual System::Web::UI::WebControls::Style ^ System.Web.UI.WebControls.IRepeatInfoUser.GetItemStyle(System::Web::UI::WebControls::ListItemType itemType, int repeatIndex) = System::Web::UI::WebControls::IRepeatInfoUser::GetItemStyle;System.Web.UI.WebControls.Style IRepeatInfoUser.GetItemStyle(System.Web.UI.WebControls.ListItemType itemType, int repeatIndex);abstract member System.Web.UI.WebControls.IRepeatInfoUser.GetItemStyle : System.Web.UI.WebControls.ListItemType * int -> System.Web.UI.WebControls.Style
override this.System.Web.UI.WebControls.IRepeatInfoUser.GetItemStyle : System.Web.UI.WebControls.ListItemType * int -> System.Web.UI.WebControls.StyleFunction GetItemStyle (itemType As ListItemType, repeatIndex As Integer) As Style Implements IRepeatInfoUser.GetItemStyleParameters
- itemType
- ListItemType
One of the ListItemType enumeration values.
- repeatIndex
- Int32
An ordinal index that specifies the location of the item in the list control.
Returns
A Style object that represents the style of the specified item type at the specified index in the list control.
Implements
Examples
The following code example demonstrates how to use the IRepeatInfoUser interface members on a custom CheckBoxList object.
<%@ 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
Remarks
Typically, you should use the CheckBoxList.GetItemStyle method to retrieve the style of an item in a CheckBoxList object.
The IRepeatInfoUser.GetItemStyle method is an explicit interface member implementation. It can be used only when the CheckBoxList instance is cast to an IRepeatInfoUser interface.
Notes to Inheritors
To define a custom implementation for retrieving the style of an item in a CheckBoxList object, override the GetItemStyle(ListItemType, Int32) member. The explicit interface implementation calls the GetItemStyle(ListItemType, Int32) method to retrieve the style of an item.
