I have a gridview , in the gridview i have a edit column, if we click edit button all the values will appear in a modal popup, if the checkbox is checked textboox with value we should display if the checkbox is unchecked text box should be hidden, these values are coming from database, i am making an ajax call to get the values this is my code.

       function Edit(ID) {
       $.ajax({
                url: 'Target.aspx/GetCode?ts=' + $.now(),
                contentType: 'application/json',
                type: 'POST',
                data: JSON.stringify({ id: ID }),
                success: function (res) {
                    var obj = JSON.parse(res.d);
                    $('#<%=hdnId.ClientID%>').val(ID);
                    $('#<%=Groups.ClientID%>').val(obj.MainID).change();
                    $('#<%=Manage.ClientID%>').val(obj.ManageID).change();
                    $('#<%=txtOne.ClientID%>').val(obj.OneVal);
                    $('#<%=txttwo.ClientID%>').val(obj.twoval);
                  
                    $('#<%=checkbox1.ClientID%>').prop('checked', obj.ischecked);
           
                    if (obj.ischecked == false) {
                      //  $('#<%=txtboxchk.ClientID%>').prop('disabled', 'false');
                       
                        $('[id$=txtboxchk]').prop('disabled', true);
                       // $('#<%=txtboxchk.ClientID%>').prop("disabled", "disabled");
               
                         $('#<%=txtboxchk.ClientID%>').val('');
                      
                      
                    }
                    if (obj.ischecked == true) {
                        $('[id$=txtboxchk]').prop('disabled', false);
                       
                       // $('#<%=txtboxchk.ClientID%>').prop('enabled', 'true');

                        $('#<%=txtboxchk.ClientID%>').val(obj.txtcodepresent);
                        // $('#<%=txtboxchk.ClientID%>').prop('disabled', 'false');

                       
                        // txtboxchk.Enabled = true;
                    }
                   

                },
                error: function (err) {
                }
            });
        }

this is my code , when checked textbox with value is shown in textbox and checkbox is checked.but when unchecked it just needs to hide its textbox that i am unable to do please help??