ASP.NET CheckBoxList Operations with jQuery - Check Items By Value:

//Check Items by value    var selValue = [1, 2, 4];    var $ctrls = $("[id*=CheckBoxList1]");    for (var i = 0; i < selValue.length; i++) {        $ctrls.find('input:checkbox[value=' + selValue[i] + ']').prop('checked', true);    }

ASP.NET CheckBoxList Operations with jQuery - Check Items By Index

//Check Items by index

   var selIndex = [0, 2, 3];

   for (var i = 0; i < selIndex.length; i++) {

       $("[id*=CheckBoxList1] input:checkbox").eq(selIndex[i]).prop('checked', true);

   }

ASP.NET CheckBoxList Operations with jQuery - Check/Uncheck All Checkboxes

$("[id*=CheckBoxList1] input:checkbox").prop('checked',true); //To check all $("[id*=CheckBoxList1] input:checkbox").prop('checked',false);// To uncheck all

ASP.NET CheckBoxList Operations with jQuery - Get Text of Selected Items

 $("[id*=CheckBoxList1] input:checked").each(function () {

         alert($(this).next().html());

     });

ASP.NET CheckBoxList Operations with jQuery - Get Index of selected items

 var $ctrls = $("[id*=CheckBoxList1] input:checkbox");

       $("[id*=CheckBoxList1] input:checked").each(function () {

          alert($ctrls.index($(this)));

       });