how to call the code behind function

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hi all
i need to call the code behind the function on blur event the mobilevalidate function is called and working fine.but i need to call the code behind function CheckDateTime. pls help me

XML

<script type="text/javascript">
      function mobilevalidate() {
          if (document.getElementById('<%= txtcallerid.ClientID%>').value != "") {


          if (document.getElementById('<%= txtcallerid.ClientID%>').value.match(/^\d+$/))
//i need to call the code behind function <pre lang="xml">CheckDateTime
                  return true;
              else
                  alert(&quot;Please Enter Valid Caller Id&quot;);
              document.getElementById(&#39;&lt;%= txtcallerid.ClientID%&gt;&#39;).value = &quot;&quot;;
              document.getElementById(&#39;&lt;%= txtcallerid.ClientID%&gt;&#39;).focus();
          }
          alert(&quot;Please Enter Caller Id&quot;);
          return false;

      }

my.cs file

C#

[System.Web.Services.WebMethod]
  public static string CheckDateTime(string args)
  {
      ddlload();
  }

Posted 28-Mar-13 6:23am

ashok_89

Updated 28-Mar-13 6:39am

Maciej Los

v2

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S. M. Ahasan Habib · Answer 1 · 2013-03-28T07:09:00

First you need to take reference of ScriptManager control from your page.

ASP.NET

<asp:scriptmanager id="scriptmanager" runat="server"></asp:scriptmanager>

If it is already there to your masterpage then no need. Then from your mobilevalidate method you can call server side method CheckDateTime like as follows

C#

PageMethods.CheckDateTime("yourargument");

You can also called that serverside method using jquery or other client side library like prototype. If you search online then you will find many codesample.