请求这样的委托为什么得不到结果呢，结果总是空的？急！

战斗生活 2010-06-24 06:05:56

aspx页面代码



<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> 

<!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 id="Head1" runat="server"> <title>Untitled Page</title> </head>

 <body> 

 <form id="form1" runat="server"> 

 <div> 

 <asp:TextBox ID="Text1" runat="server"></asp:TextBox> 

 <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" /> 

 </div> 

 </form> 

 <asp:Label ID="Label1" runat="server" ></asp:Label> 

 </body>

</html>

aspx.cs页面代码





using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using SpeechLib;



public partial class _Default : System.Web.UI.Page 

{

  public  SpeechLib.SpVoice vox = new SpVoiceClass();

  protected void Page_Load(object sender, EventArgs e)

  {

      if (!Page.IsPostBack)

      {

          vox.Viseme += new SpeechLib._ISpeechVoiceEvents_VisemeEventHandler(vox_Viseme);

      }

  } 

    protected void Button1_Click(object sender, EventArgs e) 

    { 

        vox.Speak(Text1.Text,SpeechVoiceSpeakFlags.SVSFlagsAsync);

        //vox.Viseme += new SpeechLib._ISpeechVoiceEvents_VisemeEventHandler(vox_Viseme);

        Label1.Text = "Hellow";

    } 



    void vox_Viseme(int StreamNumber, object StreamPosition, int Duration, SpeechLib.SpeechVisemeType NextVisemeId, SpeechLib.SpeechVisemeFeature Feature, SpeechLib.SpeechVisemeType CurrentVisemeId)

    { 

        // Label1.Text = Label1.Text + CurrentVisemeId + " "; //我想得到这个值 但是测试的时候都没有触发.

        Label1.Text += Text1.Text; //问题就在这里没有结果 没有触发

    } 

 

}

结果是提交表单后没有得到触发的结果我该如何写的呢请大哥大姐们帮帮忙啊
谢谢先了

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战斗生活 2010-06-24

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[Quote=引用 1 楼 sprc_lcl 的回复:]

if (!Page.IsPostBack)
{ vox.Viseme += new SpeechLib._ISpeechVoiceEvents_VisemeEventHandler(vox_Viseme);
}

红色去掉，IsPostBack这地方不适合
[/Quote]

兄弟那该如何写呢？谢谢先了帮帮忙吧