Page.CreateHtmlTextWriter Method
.NET Framework 3.0
Creates an HtmlTextWriter object to render the page's content.
Namespace: System.Web.UI
Assembly: System.Web (in system.web.dll)
Assembly: System.Web (in system.web.dll)
'Declaration Protected Friend Overridable Function CreateHtmlTextWriter ( _ tw As TextWriter _ ) As HtmlTextWriter 'Usage Dim tw As TextWriter Dim returnValue As HtmlTextWriter returnValue = Me.CreateHtmlTextWriter(tw)
protected HtmlTextWriter CreateHtmlTextWriter ( TextWriter tw )
protected internal function CreateHtmlTextWriter ( tw : TextWriter ) : HtmlTextWriter
Not applicable.
Parameters
- tw
The TextWriter used to create the HtmlTextWriter.
Return Value
An HtmlTextWriter or Html32TextWriter.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.
Imports System Imports System.IO Imports System.Web.UI Namespace WebPage Public Class MyPage Inherits Page Public Sub New() MyBase.New() End Sub 'New <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.RenderBeginTag(HtmlTextWriterTag.Font) writer.Write(("<br>" + "The time on the server:<br> " + System.DateTime.Now.ToLongTimeString())) writer.RenderEndTag() End Sub 'Render End Class 'MyPage Public Class MyHtmlTextWriter Inherits HtmlTextWriter Public Sub New(writer As TextWriter) MyBase.New(writer) writer.Write("<font color=blue> 'MyHtmlTextWriter' is used for rendering.</font>") End Sub 'New End Class 'MyHtmlTextWriter End Namespace 'WebPage
import System.*;
import System.IO.*;
import System.Web.UI.*;
public class MyPage extends Page
{
public MyPage()
{
} //MyPage
protected HtmlTextWriter CreateHtmlTextWriter(TextWriter writer)
{
return new MyHtmlTextWriter(writer);
} //CreateHtmlTextWriter
protected void Render(HtmlTextWriter writer)
{
// Write a Font control.
writer.AddAttribute("color", "red");
writer.AddAttribute("size", "6pt");
writer.RenderBeginTag(HtmlTextWriterTag.Font);
writer.Write("<br>" + "The time on the server:<br> "
+ System.DateTime.get_Now().ToLongTimeString());
writer.RenderEndTag();
} //Render
} //MyPage
public class MyHtmlTextWriter extends HtmlTextWriter
{
public MyHtmlTextWriter(TextWriter writer)
{
super(writer);
writer.Write("<font color=blue> 'MyHtmlTextWriter' is used for "
+ "rendering.</font>");
} //MyHtmlTextWriter
} //MyHtmlTextWriter
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