How to check checkbox in jQuery

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Hi,

I'm using jQuery in my asp.net mvc application, in this i have created some checkboxes like

JavaScript

$("#dvModules").append('<span>&lt;input type="checkbox" id=Module_' + jsModulesData[ctr].Code + ' name="' + jsModulesData[ctr].Name + '" value="' + jsModulesData[ctr].Code + '"&gt; ' + jsModulesData[ctr].Name + '</span><br />');

I checked some of them and stored its values in database, when i enter it to this page again, i got the values from the database, but i could not check the corresponding checkboxes with their values my code is below:

JavaScript

var arrModuleIDs = SelectedModuleIDs.split(',');
$(document).ready(function () {
            SelectedModuleIDs = '@ViewBag.SelectedModuleIDs';
            var arrModuleIDs = SelectedModuleIDs.split(',');
            for (var i = 0; i < arrModuleIDs.length; i++) {
                  $("#Module_" + arrModuleIDs[i] + "").attr('checked', true);
//Here the arrmoduleIDs is the values from database.
                    }

here the loop is performing well but the checkbox is not checked, can anyone help me to resolve this.

Posted 13-May-12 23:01pm

karthime

Updated 13-May-12 23:34pm

Sandeep Mewara

v2

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Sandeep Mewara 14-May-12 5:38am

You debugged and made sure that the workflow of the implementation is correct? Control id's are as expected?

ZurdoDev 14-May-12 8:24am

You likely just need to debug it and see what is happening. More than likely, "#Module_" + arrModuleIDs[i] + "" is not an actual ID of a control.

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hiseshu · Answer 1 · 2012-05-25T00:16:00

hi karthime

I think u are trying to check the checkbox before it is created bcz you r doing it in document.ready and after that u r appending checkbox to div.

so after appending checkbox to the div then you have check the checkbox with the database values wt exactly u made it.

<pre lang="Javascript">

 $("#dvModules").append('<span><input type="checkbox" id=Module_' + jsModulesData[ctr].Code + ' name="' + jsModulesData[ctr].Name + '" value="' + jsModulesData[ctr].Code + '"> ' + jsModulesData[ctr].Name + '</span><br />');


//After appending checkbox u can loop the ids 

  SelectedModuleIDs = '@ViewBag.SelectedModuleIDs';
            var arrModuleIDs = SelectedModuleIDs.split(',');
            for (var i = 0; i < arrModuleIDs.length; i++) {
                  $("#Module_" + arrModuleIDs[i] + "").attr('checked', true);
//Here the arrmoduleIDs is the values from database.
                    }

Happy coding ..... :)
Seshu