Check Uncheck all using Jqury with Parent and Child case

// Jquery function

function CheckUncheck_AllCheckBoxes(chk, CheckParentID) {

    $('[id*=' + CheckParentID + ']').find("input:checkbox").each(function () {

        if (this != chk) {

            this.checked = chk.checked;

        }

    });

    return false;

}

// Html or Asp.net

<asp:CheckBox runat="server" ID="Chk_allFrequency"  onclick="CheckUncheck_AllCheckBoxes(this,'Parent ID static');"

 CssClass="pull-left" Text="Frequency" Checked="true" />