DataBindingHandlerAttribute 類別

定義

public ref class DataBindingHandlerAttribute sealed : Attribute

[System.AttributeUsage(System.AttributeTargets.Class)]
public sealed class DataBindingHandlerAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Class)>]
type DataBindingHandlerAttribute = class
    inherit Attribute

Public NotInheritable Class DataBindingHandlerAttribute
Inherits Attribute

繼承

Object

Attribute

DataBindingHandlerAttribute

屬性

AttributeUsageAttribute

範例

以下程式碼範例定義了一個資料綁定處理器，名為 MyDataBindingHandler，供設計者在編輯模式下使用。 退出編輯模式後， Text 屬性值會顯示出來。

using System;
using System.Collections;
using System.Web.UI;
using System.Web.UI.Design;
using System.Web.UI.WebControls;
using System.ComponentModel;
using System.ComponentModel.Design;

namespace CustomControls
{
  [
    DataBindingHandler(typeof(MyDataBindingHandler)),
    ToolboxData("<{0}:MyLabel runat=server></{0}:MyLabel>")
  ]
  public class MyLabel : Label 
  {
    public  MyLabel()
    { 
      // Insert your code here.
    } 
  }

  public class MyDataBindingHandler : DataBindingHandler
  {
    public override void DataBindControl(IDesignerHost host, Control control)
    {
      ((Label)control).Text = "Added by data binding handler.";
    }
  }
}

Namespace CustomControls

  <DataBindingHandler(GetType(MyDataBindingHandler)), ToolboxData("<{0}:MyLabel runat=server></{0}:MyLabel>")>  _
    Public Class MyLabel
      Inherits Label
      
      Public Sub New()
        'Insert your code here.
      End Sub
      
    End Class
   
    Public Class MyDataBindingHandler
      Inherits DataBindingHandler
      
      Public Overrides Sub DataBindControl(host As IDesignerHost, control As Control)
         CType(control, Label).Text = "Added by data binding handler."
      End Sub
      
    End Class
    
End Namespace 'CustomControls

備註

欲了解更多屬性的使用資訊，請參閱屬性。

另請參閱

• Attribute