PreRender イベントを発生させ、ポストバックを生成するためのクライアント スクリプトを登録します。
名前空間: System.Web.UI.HtmlControls
アセンブリ: System.Web (system.web.dll 内)
構文
'宣言
Protected Friend Overrides Sub OnPreRender ( _
e As EventArgs _
)
'使用
Dim e As EventArgs
Me.OnPreRender(e)
protected internal override void OnPreRender (
EventArgs e
)
protected public:
virtual void OnPreRender (
EventArgs^ e
) override
protected void OnPreRender (
EventArgs e
)
protected internal override function OnPreRender (
e : EventArgs
)
適用できません。
パラメータ
- e
イベント データを格納している EventArgs。
使用例
OnPreRender メソッドをオーバーライドして、カスタムの HtmlAnchor サーバー コントロールに Title タグを常に表示できるようにします。
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!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 HtmlAnchor - OnPreRender - Visual Basic Example</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
Top of Page
<<aspSample:CustomHtmlAnchorOnPreRender
id="HtmlAnchor1"
runat="server"
name="HtmlAnchor1">HtmlAnchor1</aspSample:CustomHtmlAnchorOnPreRender>>
<h3>Custom HtmlAnchor - OnPreRender - Visual Basic Example</h3>
<p> </p>
<p>Jump to <a href="#HtmlAnchor2">HtmlAnchor2</a> below.</p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p>Jump to <a href="#HtmlAnchor1">HtmlAnchor1</a> above.</p>
<p> </p>Bottom of Page
<<aspSample:CustomHtmlAnchorOnPreRender
id="HtmlAnchor2"
runat="server"
name="HtmlAnchor2">HtmlAnchor2</aspSample:CustomHtmlAnchorOnPreRender>>
</form>
</body>
</html>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %>
<%@ Page Language="C#" AutoEventWireup="True" %>
<!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 HtmlAnchor - OnPreRender - C# Example</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
Top of Page
<<aspSample:CustomHtmlAnchorOnPreRender
id="HtmlAnchor1"
runat="server"
name="HtmlAnchor1">HtmlAnchor1</aspSample:CustomHtmlAnchorOnPreRender>>
<h3>Custom HtmlAnchor - OnPreRender - C# Example</h3>
<p> </p>
<p>Jump to <a href="#HtmlAnchor2">HtmlAnchor2</a> below.</p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p>Jump to <a href="#HtmlAnchor1">HtmlAnchor1</a> above.</p>
<p> </p>Bottom of Page
<<aspSample:CustomHtmlAnchorOnPreRender
id="HtmlAnchor2"
runat="server"
name="HtmlAnchor2">HtmlAnchor2</aspSample:CustomHtmlAnchorOnPreRender>>
</form>
</body>
</html>
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL.Controls" Assembly="Samples.AspNet.JSL" %>
<%@ Page Language="VJ#" AutoEventWireup="True" %>
<!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 HtmlAnchor - OnPreRender - VJ# Example</title>
</head>
<body>
<form id="Form1" method="post" runat="server">
Top of Page
<<aspSample:CustomHtmlAnchorOnPreRender
id="HtmlAnchor1"
runat="server"
name="HtmlAnchor1">HtmlAnchor1</aspSample:CustomHtmlAnchorOnPreRender>>
<h3>Custom HtmlAnchor - OnPreRender - VJ# Example</h3>
<p> </p>
<p>Jump to <a href="#HtmlAnchor2">HtmlAnchor2</a> below.</p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p> </p><p> </p><p> </p><p> </p>
<p>Jump to <a href="#HtmlAnchor1">HtmlAnchor1</a> above.</p>
<p> </p>Bottom of Page
<<aspSample:CustomHtmlAnchorOnPreRender
id="HtmlAnchor2"
runat="server"
name="HtmlAnchor2">HtmlAnchor2</aspSample:CustomHtmlAnchorOnPreRender>>
</form>
</body>
</html>
Imports System.Web
Imports System.Security.Permissions
Namespace Samples.AspNet.VB.Controls
<AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
Public NotInheritable Class CustomHtmlAnchorOnPreRender
Inherits System.Web.UI.HtmlControls.HtmlAnchor
Protected Overrides Sub OnPreRender(ByVal e As System.EventArgs)
' Call the base OnPreRender method.
MyBase.OnPreRender(e)
' Write out the HtmlAnchor control's Title tag.
Me.Title = "Text from OnPreRender."
End Sub
End Class
End Namespace
using System.Web;
using System.Security.Permissions;
namespace Samples.AspNet.CS.Controls
{
[AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class CustomHtmlAnchorOnPreRender : System.Web.UI.HtmlControls.HtmlAnchor
{
protected override void OnPreRender(System.EventArgs e)
{
// Call the base OnPreRender method.
base.OnPreRender(e);
// Write out the HtmlAnchor control's Title tag.
this.Title = "Text from OnPreRender.";
}
}
}
package Samples.AspNet.JSL.Controls;
public class CustomHtmlAnchorOnPreRender
extends System.Web.UI.HtmlControls.HtmlAnchor
{
protected void OnPreRender(System.EventArgs e)
{
// Call the base OnPreRender method.
super.OnPreRender(e);
// Write out the HtmlAnchor's Title tag
this.set_Title("Text from OnPreRender.");
} //OnPreRender
} //CustomHtmlAnchorOnPreRender
プラットフォーム
Windows 98,Windows Server 2000 SP4,Windows CE,Windows Millennium Edition,Windows Mobile for Pocket PC,Windows Mobile for Smartphone,Windows Server 2003,Windows XP Media Center Edition,Windows XP Professional x64 Edition,Windows XP SP2,Windows XP Starter Edition
Microsoft .NET Framework 3.0 は Windows Vista,Microsoft Windows XP SP2,および Windows Server 2003 SP1 でサポートされています。
バージョン情報
.NET Framework
サポート対象 : 3.0,2.0,1.1,1.0
参照
関連項目
HtmlAnchor クラス
HtmlAnchor メンバ
System.Web.UI.HtmlControls 名前空間