共用方式為


Page.CreateHtmlTextWriter(TextWriter) 方法

定義

建立 HtmlTextWriter 物件以呈現網頁內容。

protected:
 virtual System::Web::UI::HtmlTextWriter ^ CreateHtmlTextWriter(System::IO::TextWriter ^ tw);
protected public:
 virtual System::Web::UI::HtmlTextWriter ^ CreateHtmlTextWriter(System::IO::TextWriter ^ tw);
protected 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 Overridable Function CreateHtmlTextWriter (tw As TextWriter) As HtmlTextWriter
Protected Friend Overridable Function CreateHtmlTextWriter (tw As TextWriter) As HtmlTextWriter

參數

tw
TextWriter

用來建立 TextWriterHtmlTextWriter

傳回

HtmlTextWriter

HtmlTextWriterHtml32TextWriter

範例

下列程式碼範例會 CreateHtmlTextWriter 使用 方法來建立名為 MyHtmlTextWriter 的自訂 HtmlTextWriter 物件實例。 方法 CreateHtmlTextWriter 會在 衍生自 PageMyPage 類別中覆寫,以便在 MyHtmlTextWriter 要求頁面時轉譯 ASP.NET 伺服器控制項。 請注意,此範例會防止配接 TextWriter 器行為。

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.RenderBeginTag(HtmlTextWriterTag.Font);
         writer.Write("<br>" + "The time on the server:<br> " + System.DateTime.Now.ToLongTimeString());
         writer.RenderEndTag();
      }
   }

   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()
         MyBase.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.RenderBeginTag(HtmlTextWriterTag.Font)
         writer.Write(("<br>" + "The time on the server:<br> " + System.DateTime.Now.ToLongTimeString()))
         writer.RenderEndTag()
      End Sub
   End Class
    

   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
   End Class
End Namespace 'WebPage

備註

方法 CreateHtmlTextWriterTextWriter 透過 Browser 與頁面要求相關聯的 物件屬性 Request 建立 。 您可以在組態區段中新增 對 的 HtmlTextWriter browserCaps 參考。 覆寫 CreateHtmlTextWriter 方法來執行自訂查閱。

適用於

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