Page.CreateHtmlTextWriter(TextWriter) Method


Creates an HtmlTextWriter object to render the page's content.

protected public:
 virtual System::Web::UI::HtmlTextWriter ^ CreateHtmlTextWriter(System::IO::TextWriter ^ tw);
protected internal virtual System.Web.UI.HtmlTextWriter CreateHtmlTextWriter (System.IO.TextWriter tw);
abstract member CreateHtmlTextWriter : System.IO.TextWriter -> System.Web.UI.HtmlTextWriter
override this.CreateHtmlTextWriter : System.IO.TextWriter -> System.Web.UI.HtmlTextWriter
Protected Friend Overridable Function CreateHtmlTextWriter (tw As TextWriter) As HtmlTextWriter



The TextWriter used to create the HtmlTextWriter.



The following code example uses the CreateHtmlTextWriter method to create an instance of a custom HtmlTextWriter object named MyHtmlTextWriter. The CreateHtmlTextWriter method is overridden in the MyPage class, which is derived from Page, so that MyHtmlTextWriter renders ASP.NET server controls when the page is requested. Note that this example will prevent adapter TextWriter behavior.

namespace WebPage
   using System;
   using System.IO;
   using System.Web.UI;

   public class MyPage : Page
      public MyPage():base()

      [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name="FullTrust")] 
      protected override HtmlTextWriter CreateHtmlTextWriter(TextWriter writer)
         return new MyHtmlTextWriter(writer);

      [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name="FullTrust")] 
      protected override void Render(HtmlTextWriter writer)
         // Write a Font control.
         writer.AddAttribute("color", "red");
         writer.AddAttribute("size", "6pt");
         writer.Write("<br>" + "The time on the server:<br> " + System.DateTime.Now.ToLongTimeString());

   public class MyHtmlTextWriter : HtmlTextWriter
      public MyHtmlTextWriter(TextWriter writer):base(writer)
         writer.Write("<font color=blue> 'MyHtmlTextWriter' is used for rendering.</font>");


Imports System.IO
Imports System.Web.UI

Namespace WebPage

   Public Class MyPage
      Inherits Page
      Public Sub New()
      End Sub

      <System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
      Protected Overrides Function CreateHtmlTextWriter(ByVal writer As TextWriter) As HtmlTextWriter
         Return New MyHtmlTextWriter(writer)
      End Function 'CreateHtmlTextWriter

      <System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
      Protected Overrides Sub Render(ByVal writer As HtmlTextWriter)
         ' Writes a Font control.
         writer.AddAttribute("color", "red")
         writer.AddAttribute("size", "6pt")
         writer.Write(("<br>" + "The time on the server:<br> " + System.DateTime.Now.ToLongTimeString()))
      End Sub
   End Class

   Public Class MyHtmlTextWriter
      Inherits HtmlTextWriter
      Public Sub New(writer As TextWriter)
         writer.Write("<font color=blue> 'MyHtmlTextWriter' is used for rendering.</font>")
      End Sub
   End Class
End Namespace 'WebPage


The CreateHtmlTextWriter method creates a TextWriter through the Browser property of the Request object associated with the page request. You can add a reference to an HtmlTextWriter in the browserCaps configuration section. Override the CreateHtmlTextWriter method to perform custom lookup.

Applies to

See also