Asp Button Doesnt make jquery ajax call

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i just want to simply make a webmethod call from a asp button. When i use a html button it works perfectly but the asp button does not work.

my Default.aspx page is
<%@ Page Title="Home Page" Language="C#" AutoEventWireup="true"
    CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>

 <html>

  <head>
      <script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
      <script src="Scripts/myjscript.js" type="text/javascript"></script>

  </head>
  <body>
      <input type="submit" value="Submit" id="btnSubmit"/><br/>
      <form id="form1" runat="server">
          <asp:Button runat="server" ID="btnasp" Text="ASP Button"/>

      </form>
  </body>

 </html>


and Default.aspx.cs code is

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Services;

namespace WebApplication1
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        [WebMethod]
        public static string getDate()
        {
            return DateTime.Now.ToString();
        }
    }
}

Jscript file is

$(function () {

    $("#btnSubmit").bind("click", onClick);
    $("#btnasp").bind("click", onASPClick);

});

function onClick() {

    alert("I am a HTML Submit Button");
    callMethod();
}



function onASPClick() {

    alert("I am a Asp.net Button");
    callMethod();

}


function callMethod() {
    $.ajax({
        url: 'Default.aspx/getDate',
        type: "POST",
        data: "{}",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (data) {
            alert(data.d);
        }
    });

}

somebody please help.

Posted 23-Dec-12 21:26pm

Ehtesam Ahmed

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Nick Fisher (Consultant) · Accepted Answer · 2012-12-23T21:59:00

Solution 1

If it were me I wouldn't bind the function to the button like this, but use the 'OnClientClick' attribute directly on the button itself.

Try:

<asp:Button runat="server" ID="btnasp" OnClientClick="onASPClick(); return false;" Text="ASP Button"/>

It's important to specify the 'return false' because you want it to perform the click but not submit the form.

Posted 23-Dec-12 21:59pm

Nick Fisher (Consultant)

Comments

Ehtesam Ahmed 24-Dec-12 4:06am

Thanx Nick
That solved my problem but now i have another problem that the click event fire twice. Can you please help?

Nick Fisher (Consultant) 24-Dec-12 4:09am

Hmmm. Did you make sure you removed the old line:

$("#btnasp").bind("click", onASPClick);

Now that you've added the 'OnClientClick' command, it may be doing funny things if you're still trying to bind to it the other way.

Ehtesam Ahmed 24-Dec-12 4:33am

i found the solution i need to add this UseSubmitBehavior="False" :)

Nick Fisher (Consultant) 24-Dec-12 4:37am

Ah OK, cool. :)