Edytuj

Udostępnij za pośrednictwem

HtmlTable.RenderEndTag(HtmlTextWriter) Method

  • Reference

Definition

Namespace:
System.Web.UI.HtmlControls
Assembly:
System.Web.dll

Renders the HtmlTable control's end tag.

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)

Parameters

writer
HtmlTextWriter

The HtmlTextWriter that receives the rendered content.

Examples

The following code example demonstrates how to override the RenderEndTag method so that it always writes an end tag and a new line in a custom HtmlTable server control.

<%@ 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

Remarks

The RenderEndTag method provides additional formatting after calling the base class's HtmlContainerControl.RenderEndTag method. The additional formatting makes the rendered HTML of the HtmlTable control easier to read by inserting a line return after the closing <table> tag.

The RenderChildren method is used primarily by control developers extending the functionality of the HtmlTable control.

Applies to

See also