HtmlTable.RenderEndTag(HtmlTextWriter) 方法

定义

呈现 HtmlTable 控件的结束标记。

protected:
 override void RenderEndTag(System::Web::UI::HtmlTextWriter ^ writer);
protected override void RenderEndTag (System.Web.UI.HtmlTextWriter writer);
override this.RenderEndTag : System.Web.UI.HtmlTextWriter -> unit
Protected Overrides Sub RenderEndTag (writer As HtmlTextWriter)

参数

writer
HtmlTextWriter

接收呈现内容的 HtmlTextWriter

示例

下面的代码示例演示如何重写 RenderEndTag 方法,以便它始终在自定义 HtmlTable 服务器控件中写入结束标记和新行。

<%@ 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 HtmlTable - RenderEndTag Example</title>
  </head>
  <body>
    <form id="Form1" 
          method="post" 
          runat="server">
      <h3>Custom HtmlTable - RenderEndTag Example</h3>

      <aspSample:CustomHtmlTableRenderEndTag 
        id="HtmlTable1" 
        name="HtmlTable1" 
        runat="server" 
        border="1"
        cellSpacing="0" 
        cellPadding="5">
        <tr>
          <td>1,1</td>
          <td>1,2</td>
          <td>1,3</td>
        </tr>
        <tr>
          <td>2,1</td>
          <td>2,2</td>
          <td>2,3</td>
        </tr>
        <tr>
          <td>3,1</td>
          <td>3,2</td>
          <td>3,3</td>
        </tr>
      </aspSample:CustomHtmlTableRenderEndTag>

    </form>
  </body>
</html>
<%@ 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 HtmlTable - RenderEndTag Example</title>
  </head>
  <body>
    <form id="Form1" 
          method="post" 
          runat="server">
      <h3>Custom HtmlTable - RenderEndTag Example</h3>

      <aspSample:CustomHtmlTableRenderEndTag 
        id="HtmlTable1" 
        name="HtmlTable1" 
        runat="server" 
        border="1"
        cellSpacing="0" 
        cellPadding="5">
        <tr>
          <td>1,1</td>
          <td>1,2</td>
          <td>1,3</td>
        </tr>
        <tr>
          <td>2,1</td>
          <td>2,2</td>
          <td>2,3</td>
        </tr>
        <tr>
          <td>3,1</td>
          <td>3,2</td>
          <td>3,3</td>
        </tr>
      </aspSample:CustomHtmlTableRenderEndTag>

    </form>
  </body>
</html>
using System.Web;
using System.Security.Permissions;

namespace Samples.AspNet.CS.Controls
{
    [AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
    public sealed class CustomHtmlTableRenderEndTag : System.Web.UI.HtmlControls.HtmlTable
    {
        protected override void RenderEndTag(System.Web.UI.HtmlTextWriter writer)
        {
            // Write out the current TagName.
            writer.WriteEndTag(this.TagName);
            
            // Write out a new line.
            writer.WriteLine();
        }
    }
}
Imports System.Web
Imports System.Security.Permissions

Namespace Samples.AspNet.VB.Controls
    <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _
    Public NotInheritable Class CustomHtmlTableRenderEndTag
        Inherits System.Web.UI.HtmlControls.HtmlTable

        Protected Overrides Sub RenderEndTag(ByVal writer As System.Web.UI.HtmlTextWriter)

            ' Write out the current TagName.
            writer.WriteEndTag(Me.TagName)

            ' Write out a new line.
            writer.WriteLine()
        End Sub
    End Class
End Namespace

注解

该方法 RenderEndTag 在调用基类 HtmlContainerControl.RenderEndTag 的方法后提供其他格式。 其他格式使控件的呈现 HTML HtmlTable 更易于阅读,方法是在结束 <table> 标记后插入行返回。

该方法 RenderChildren 主要由扩展控件功能的 HtmlTable 控件开发人员使用。

适用于

另请参阅