防止按鈕重覆發送
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Threading;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
btnSend.Attributes["onclick"] = "this.disabled=disabled;" + this.Page.ClientScript.GetPostBackEventReference(btnSend, "");
}
protected void btnSend_Click(object sender, EventArgs e)
{
Thread.Sleep(3000);
Response.Write(this.txtData.Text);
}
}