The below code helps you to implement the Speech Option for TextBox' text. All you need to is add a dll named SpeechLib.dll.
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using SpeechLib;
public partial class speech : System.Web.UI.Page
{
SpeechVoiceSpeakFlags flag = new SpeechVoiceSpeakFlags();
SpVoice voiceObj = new SpVoice();
protected void Page_Load(object sender, EventArgs e)
{
}
protected void readfromtextbox_Click(object sender, EventArgs e)
{
try
{
voiceObj.Speak(textbox1.Text, flag);
}
catch (Exception excep)
{
}
}
}