$(function () {
            $("[id*=TreeView2] input[type=checkbox]").bind("click", function () {
                var table = $(this).closest("table");
                if (table.next().length > 0 && table.next()[0].tagName == "DIV") {
                    //Is Parent CheckBox
                    var childDiv = table.next();
                    var isChecked = $(this).is(":checked");
                    $("input[type=checkbox]", childDiv).each(function () {
                        if (isChecked) {
                            $(this).attr("checked", "checked");
                        } else {
                            $(this).removeAttr("checked");
                        }
                    });
                } else {
                    //Is Child CheckBox
                    var parentDIV = $(this).closest("DIV");
                    if ($("input[type=checkbox]", parentDIV).length == $("input[type=checkbox]:checked", parentDIV).length) {
                        $("input[type=checkbox]", parentDIV.prev()).attr("checked", "checked");
                    } else {
                        $("input[type=checkbox]", parentDIV.prev()).removeAttr("checked");
                    }
                }
            });
        })