When i select CheckBox().I need to update its value into DB - MVC2,AJAx,JQuery

Question

Please find the code which i tried to update the DB using MVC2.But unable to update

View Page with Ajax Code

<script src="../../Scripts/jquery-1.4.1.js" type="text/javascript"></script>
<script src="../../Scripts/MicrosoftAjax.js" type="text/javascript"></script>
<script language="javascript" type="text/javascript">
   $('#cbID').click(function(){
    $.ajax({ url: 'Home/About',
    type: 'POST',
    data: { checkbox: $('#cbID').attr('checked') },
    success: function(o) { alert('saved'); }
                      });
</script>
<div class="bgDiv">
<input id="cbID" type="checkbox" name="SelectedObject" value="cbValue" />

Controller page code

 public ActionResult About(string str)
        {
            AboutModels ObjAM = new AboutModels();//model class name
            polloptions = ObjAM.dbValue(str);//call the model function to udate the table
            return View();
        }

Please advice

Muhammad Adeel Zahid · Accepted Answer · 2011-07-01 19:16:08Z

1

you should either declare your event handler in ready function or declare it with live or delegate methods like

<script language="javascript" type="text/javascript">
$(function(){   
  $('#cbID').click(function(){
    $.ajax({ url: 'Home/About',
    type: 'POST',
    data: { checkbox: $('#cbID').attr('checked') },
    success: function(o) { alert('saved'); }
                      });
      });
 });
</script>

the problem is that your script is running before the required checkbox is rendered so putting it in ready will wait until document is ready or live will bind it on document level where the event will reach through propogation

edited Jul 1, 2011 at 19:16

answered Jul 1, 2011 at 14:23

Muhammad Adeel Zahid

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10 Comments

User1234 Over a year ago

Sorry i am not cleared can you please elaborate your explanation

Muhammad Adeel Zahid Over a year ago

Please try the code first and also tell me what specific point you want me to explain

User1234 Over a year ago

I have updated my <script> and run it. But i didn get the output what i expect.

User1234 Over a year ago

If my understanding correct - alert box will come after i select the check box rite?

Muhammad Adeel Zahid Over a year ago

we had mismatching braces and parenthesis in code. corrected the code. plz give it a try and do consider using getfirebug.com for js debugging

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