TemplateControl クラス
Page クラスと UserControl クラスに、基本の機能セットを提供します。
この型のすべてのメンバの一覧については、TemplateControl メンバ を参照してください。
System.Object
System.Web.UI.Control
System.Web.UI.TemplateControl
System.Web.UI.Page
System.Web.UI.UserControl
MustInherit Public Class TemplateControl
Inherits Control
Implements INamingContainer
[C#]
public abstract class TemplateControl : Control, INamingContainer
[C++]
public __gc __abstract class TemplateControl : public Control,
INamingContainer
[JScript]
public abstract class TemplateControl extends Control implements
INamingContainer
スレッドセーフ
この型の public static (Visual Basicでは Shared) のすべてのメンバは、マルチスレッド操作で安全に使用できます。インスタンスのメンバの場合は、スレッドセーフであるとは限りません。
使用例
' Create a code-behind custom UserControl class (the UserControl class
' is derived from TemplateControl), named MyControl, that
' overrides the Construct method of the TemplateControl class.
' When the control is initialized, the overridden Construct method
' is called, which allows the custom initialization logic
' to be called as well.
Imports System
Imports System.Web.UI
Imports System.Web.UI.WebControls
' The custom user control class.
Public Class MyControl
Inherits UserControl
' Create a Message property and accessors.
Private _message As String = Nothing
Public Property Message() As String
Get
Return _message
End Get
Set
_message = value
End Set
End Property
' Create an event for this user control and
' name it myControl.
Public Event myControl As System.EventHandler
' Override the default constructor.
Protected Overrides Sub Construct()
' Specify the handler, MyInit, to be called when the myControl event
' is raised by the OnInit method.
AddHandler Me.myControl, AddressOf MyInit
End Sub 'Construct
Protected Overrides Sub OnInit(e As EventArgs)
RaiseEvent myControl(Me, e)
Response.Write("The OnInit() method is used to raise the Init event.")
End Sub 'OnInit
' Use the MyInit handler to set the Message property value
' when this method is called.
Sub MyInit(sender As Object, e As System.EventArgs)
_message = "Hello World!"
End Sub 'MyInit
' Write the value of the Message property when the control
' is rendered.
Protected Overrides Sub Render(output As HtmlTextWriter)
output.Write(("<br>Message :" & _message))
End Sub 'Render
End Class 'MyControl
[C#]
// Create a code-behind custom UserControl class (the UserControl class
// is derived from TemplateControl), named MyControl, that
// overrides the Construct method of the TemplateControl class.
// When the control is initialized, the overridden Construct method
// is called, which allows the custom initialization logic
// to be called as well.
using System;
using System.Web.UI;
using System.Web.UI.WebControls;
// The custom user control class.
public class MyControl:UserControl
{
// Create a Message property and accessors.
private string _message = null;
public string Message
{
get
{
return _message;
}
set
{
_message = value;
}
}
// Create an event for this user control and
// name it myControl.
public event System.EventHandler myControl;
// Override the default constructor.
protected override void Construct()
{
// Specify the handler, MyInit, to be called when the myControl event
// is raised by the OnInit method.
this.myControl += new System.EventHandler(MyInit);
}
protected override void OnInit( EventArgs e)
{
myControl(this ,e);
Response.Write("The OnInit() method is used to raise the Init event.");
}
// Use the MyInit handler to set the Message property value
// when this method is called.
void MyInit(object sender,System.EventArgs e)
{
_message = "Hello World!";
}
// Write the value of the Message property when the control
// is rendered.
protected override void Render(HtmlTextWriter output)
{
output.Write("<br>Message :" + _message);
}
}
[C++]
// Create a code-behind custom UserControl class (the UserControl class
// is derived from TemplateControl), named MyControl, that
// overrides the Construct method of the TemplateControl class.
// When the control is initialized, the overridden Construct method
// is called, which allows the custom initialization logic
// to be called as well.
#using <mscorlib.dll>
#using <System.Web.dll>
#using <System.dll>
using namespace System;
using namespace System::Web::UI;
using namespace System::Web::UI::WebControls;
// The custom user control class.
public __gc class MyControl:public UserControl
{
// Create a Message property and accessors.
private:
String* _message;
public:
__property String* get_Message()
{
return _message;
}
__property void set_Message( String* value )
{
_message = value;
}
// Create an event for this user control and
// name it myControl.
public:
__event System::EventHandler* myControl;
// Override the default constructor.
protected:
void Construct()
{
// Specify the handler, MyInit, to be called when the myControl event
// is raised by the OnInit method.
this->myControl += new System::EventHandler(this, &MyControl::MyInit);
}
void OnInit( EventArgs* e)
{
myControl(this ,e);
Response->Write(S"The OnInit() method is used to raise the Init event.");
}
// Use the MyInit handler to set the Message property value
// when this method is called.
void MyInit(Object* sender,System::EventArgs* e)
{
_message = S"Hello World!";
}
// Write the value of the Message property when the control
// is rendered.
void Render(HtmlTextWriter* output)
{
output->Write(S"<br>Message :{0}", _message);
}
};
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をクリックします。
必要条件
名前空間: System.Web.UI
プラットフォーム: Windows 2000, Windows XP Professional, Windows Server 2003 ファミリ
アセンブリ: System.Web (System.Web.dll 内)