コントロールに、XML または HTML の要素が解析されたことを通知し、その要素をコントロールの ControlCollection オブジェクトに追加します。
名前空間: System.Web.UI.WebControls
アセンブリ: System.Web (system.web.dll 内)
構文
'宣言
Protected Overrides Sub AddParsedSubObject ( _
obj As Object _
)
'使用
Dim obj As Object
Me.AddParsedSubObject(obj)
protected override void AddParsedSubObject (
Object obj
)
protected:
virtual void AddParsedSubObject (
Object^ obj
) override
protected void AddParsedSubObject (
Object obj
)
protected override function AddParsedSubObject (
obj : Object
)
適用できません。
パラメータ
- obj
解析された要素を表す Object。
使用例
カスタム LinkButton サーバー コントロールの AddParsedSubObject メソッドをオーバーライドして、解析されたオブジェクトが Literal オブジェクトの場合は、テキスト プロパティを解析されたオブジェクトのテキスト プロパティに設定し、それ以外の場合は空の文字列に設定する方法を次のコード例に示します。
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VS.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 LinkButton - AddParsedSubObject - VB.NET Example</title>
<script runat="server">
Sub LinkButton1_Command(sender As Object, e As CommandEventArgs)
' Redirect to the Microsoft home page.
Response.Redirect("https://www.microsoft.com/")
End Sub
</script>
</head>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom LinkButton - AddParsedSubObject - VB.NET Example</h3>
<aspSample:CustomLinkButtonAddParsedSubObject id="LinkButton1"
runat="server" OnCommand="LinkButton1_Command"
ToolTip="Microsoft Home">Microsoft Corp.</aspSample:CustomLinkButtonAddParsedSubObject>
</form>
</body>
</html>
...
<AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
Public NotInheritable Class CustomLinkButtonAddParsedSubObject
Inherits System.Web.UI.WebControls.LinkButton
Protected Overrides Sub AddParsedSubObject(ByVal obj As Object)
' If the server control contains any child controls.
If Me.HasControls() Then
' Notify the base server control that an element, either XML or HTML,
' was parsed, and adds the element to the server control's
' ControlCollection object.
MyBase.AddParsedSubObject(obj)
' Else the server control doesn't contain any child controls.
Else
' If the parsed element is a LiteralControl.
If TypeOf obj Is System.Web.UI.LiteralControl Then
' Set the server control's Text property to the parsed element's Text value.
Me.Text = CType(obj, System.Web.UI.LiteralControl).Text
' Else the parsed element is not a LiteralControl.
Else
' If the server control has a value in the the Text property.
Dim currentText As String = Me.Text
If currentText.Length <> 0 Then
' Set the server control's Text property to an empty string.
Me.Text = System.String.Empty
' Notify the base server control that a new LiteralControl was parsed,
' and adds the element to the server control's ControlCollection object.
MyBase.AddParsedSubObject(New System.Web.UI.LiteralControl(currentText))
End If
MyBase.AddParsedSubObject(obj)
End If
End If
End Sub
End Class
<%@ 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 LinkButton - AddParsedSubObject - C# Example</title>
<script runat="server">
void LinkButton1_Command(Object sender, CommandEventArgs e)
{
// Redirect to the Microsoft home page.
Response.Redirect("https://www.microsoft.com/");
}
</script>
</head>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom LinkButton - AddParsedSubObject - C# Example</h3>
<aspSample:CustomLinkButtonAddParsedSubObject
id="LinkButton1"
runat="server"
OnCommand="LinkButton1_Command"
ToolTip="Microsoft Home">Microsoft Corp.
</aspSample:CustomLinkButtonAddParsedSubObject>
</form>
</body>
</html>
...
using System.Web;
using System.Security.Permissions;
namespace Samples.AspNet.CS.Controls
{
[AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class CustomLinkButtonAddParsedSubObject : System.Web.UI.WebControls.LinkButton
{
protected override void AddParsedSubObject(object obj)
{
// If the server control contains any child controls.
if (this.HasControls())
{
// Notify the base server control that an element, either XML or HTML,
// was parsed, and adds the element to the server control's
// ControlCollection object.
base.AddParsedSubObject(obj);
}
else // Else the server control doesn't contain any child controls.
{
// If the parsed element is a LiteralControl.
if (obj is System.Web.UI.LiteralControl)
{
// Set the server control's Text property to the parsed element's Text value.
this.Text = ((System.Web.UI.LiteralControl)obj).Text;
}
else // Else the parsed element is not a LiteralControl.
{
// If the server control has a value in the the Text property.
string currentText = this.Text;
if (currentText.Length != 0)
{
// Set the server control's Text property to an empty string.
this.Text = System.String.Empty;
// Notify the base server control that a new LiteralControl was parsed,
// and adds the element to the server control's ControlCollection object.
base.AddParsedSubObject(new System.Web.UI.LiteralControl(currentText));
}
base.AddParsedSubObject(obj);
}
}
}
}
}
<%@ 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 LinkButton - AddParsedSubObject - VJ# Example</title>
<script runat="server">
void LinkButton1_Command(Object sender, CommandEventArgs e)
{
// Redirect to the Microsoft home page.
get_Response().Redirect("https://www.microsoft.com/");
} //LinkButton1_Command
</script>
</head>
<body>
<form id="Form1" method="post" runat="server">
<h3>Custom LinkButton - AddParsedSubObject - VJ# Example</h3>
<aspSample:CustomLinkButtonAddParsedSubObject
id="LinkButton1"
runat="server"
OnCommand="LinkButton1_Command"
ToolTip="Microsoft Home">Microsoft Corp.
</aspSample:CustomLinkButtonAddParsedSubObject>
</form>
</body>
</html>
...
package Samples.AspNet.JSL.Controls;
public class CustomLinkButtonAddParsedSubObject
extends System.Web.UI.WebControls.LinkButton
{
protected void AddParsedSubObject(Object obj)
{
// If the server control contains any child controls.
if (this.HasControls()) {
// Notify the base server control that an element,
// either XML or HTML,
// was parsed, and adds the element to the server control's
// ControlCollection object.
super.AddParsedSubObject(obj);
}
// Else the server control doesn't contain any child controls.
else {
// If the parsed element is a LiteralControl.
if (obj instanceof System.Web.UI.LiteralControl) {
// Set the server control's Text property to the parsed
// element's Text value.
this.set_Text(((System.Web.UI.LiteralControl)obj).get_Text());
}
// Else the parsed element is not a LiteralControl.
else {
// If the server control has a value in the the Text property.
String currentText = this.get_Text();
if (currentText.get_Length() != 0) {
// Set the server control's Text property to an
// empty string.
this.set_Text("");
// Notify the base server control that a new
// LiteralControl was parsed, and adds the element to
// the server control's ControlCollection object.
super.AddParsedSubObject(new System.Web.UI.
LiteralControl(currentText));
}
super.AddParsedSubObject(obj);
}
}
} //AddParsedSubObject
} //CustomLinkButtonAddParsedSubObject
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
LinkButton クラス
LinkButton メンバ
System.Web.UI.WebControls 名前空間
Literal