TagPrefixAttribute 类

定义

public ref class TagPrefixAttribute sealed : Attribute

[System.AttributeUsage(System.AttributeTargets.Assembly, AllowMultiple=true)]
public sealed class TagPrefixAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Assembly, AllowMultiple=true)>]
type TagPrefixAttribute = class
    inherit Attribute

Public NotInheritable Class TagPrefixAttribute
Inherits Attribute

继承

Object

Attribute

TagPrefixAttribute

属性

AttributeUsageAttribute

示例

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

[assembly:TagPrefix("CustomControls", "custom")]

namespace CustomControls
{

    // Simple custom control
    public class MyCS_Control : Control
      {
            private String message = "Hello";
            
            public virtual String Message
            {
                  get
                  {
                        return message;
                  }
                  set
                  {
                        message = value;
                  }
            }
            
            [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name="FullTrust")] 
            protected override void Render( HtmlTextWriter writer)
            {
            writer.Write("<span style='background-color:aqua; font:8pt tahoma, verdana;'> "
                        + this.Message + "<br>" + "C# version. The time on the server is " + System.DateTime.Now.ToLongTimeString()
                        + "</span>");
            }
      }
}

Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls

<assembly: TagPrefix("CustomControls", "custom")> _

Namespace CustomControls
   
   ' Simple custom control
   Public Class MyVB_Control 
   Inherits Control
      Private message As String = "Hello"
      
      Public  Property getMessage() As String
         Get
            Return message
         End Get
         Set (ByVal value As String)
            message = value
         End Set
      End Property
      
      <System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
      Protected Overrides Sub Render(writer As HtmlTextWriter)
         writer.Write(("<span style='background-color:aqua; font:8pt tahoma, verdana;'> " + Me.getMessage + "<br>" + "VB version. The time on the server is " + System.DateTime.Now.ToLongTimeString() + "</span>"))
      End Sub
   End Class
End Namespace 'CustomControls

注解

该 TagPrefixAttribute 类定义为自定义控件指定标记前缀别名所需的程序集级属性。 此属性由Microsoft Visual Studio等工具使用，在使用自定义控件的 ASP.NET 页中自动生成 Register 指令。

此指令向命名空间注册标记前缀。 此外，它指定自定义控件代码实现所在的程序集。 有了此指令，即可以声明方式在网页中使用自定义控件。

有关使用属性的详细信息，请参阅 “属性”。

另请参阅

• Attribute