Table.RenderContents(HtmlTextWriter) Metod

Definition

Namnområde:
System.Web.UI.WebControls
Sammansättning:
System.Web.dll

Renderar raderna i tabellkontrollen till den angivna skrivaren.

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

Parametrar

writer
HtmlTextWriter

En HtmlTextWriter som representerar utdataströmmen för att återge HTML-innehåll på klienten.

Undantag

HttpException

Tabellavsnitten är inte i ordning.

Exempel

Följande kodexempel visar hur du åsidosätter RenderContents metoden i en anpassad serverkontroll så att den alltid infogar en rubrikrad för en anpassad Table serverkontroll.

<%@ 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 Table - RenderContents - C# Example</title>
    </head>
    <body>
        <form id="Form1" method="post" runat="server">
            <h3>Custom Table - RenderContents - C# Example</h3>
            
            <aspSample:CustomTableRenderContents 
              id="Table1" 
              runat="server" 
              GridLines="Both">
        <asp:TableRow>
          <asp:TableCell>Row 0, Col 0</asp:TableCell>
          <asp:TableCell>Row 0, Col 1</asp:TableCell>
        </asp:TableRow>
        <asp:TableRow>
          <asp:TableCell>Row 1, Col 0</asp:TableCell>
          <asp:TableCell>Row 1, Col 1</asp:TableCell>
        </asp:TableRow>
      </aspSample:CustomTableRenderContents>
        
        </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 Table - RenderContents - VB.NET Example</title>
    </head>
    <body>
        <form id="Form1" method="post" runat="server">
            <h3>Custom Table - RenderContents - VB.NET Example</h3>

            <aspSample:CustomTableRenderContents id="Table1" runat="server" GridLines="Both">
                <asp:TableRow>
                    <asp:TableCell>Row 0, Col 0</asp:TableCell>
                    <asp:TableCell>Row 0, Col 1</asp:TableCell>
                </asp:TableRow>
                <asp:TableRow>
                    <asp:TableCell>Row 1, Col 0</asp:TableCell>
                    <asp:TableCell>Row 1, Col 1</asp:TableCell>
                </asp:TableRow>
            </aspSample:CustomTableRenderContents>
        </form>
    </body>
</html>

using System.Web;
using System.Security.Permissions;

namespace Samples.AspNet.CS.Controls
{
  [AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.Minimal)]
  public sealed class CustomTableRenderContents : System.Web.UI.WebControls.Table
  {
    protected override void RenderContents(System.Web.UI.HtmlTextWriter writer)
    {
      // Insert a header row.
      writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Tr);
      writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Th);
      writer.Write("Col 0");
      writer.RenderEndTag();
      writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Th);
      writer.Write("Col 1");
      writer.RenderEndTag();
      writer.RenderEndTag();

      // Call the base RenderContents method.
      base.RenderContents(writer);
    }
  }
}

Imports System.Web
Imports System.Security.Permissions

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

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

            ' Insert a header row.
            writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Tr)
            writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Th)
            writer.Write("Col 0")
            writer.RenderEndTag()
            writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Th)
            writer.Write("Col 1")
            writer.RenderEndTag()
            writer.RenderEndTag()

            ' Call the base RenderContents method.
            MyBase.RenderContents(writer)
        End Sub
    End Class
End Namespace

Kommentarer

Den här metoden används främst av kontrollutvecklare när en anpassad klass härleds från en Table kontroll.

Kontrollen Table implementerar RenderContents för att återge Rows tabellen.

Gäller för

Se även