How can I check if the value is null in DataBound

[Fabricio]

How do I check if the value is null tDtAlteracao within the DataBound? Would you like to do this without setting the field name.

#= kendo.toString(tDtAlteracao,'d') #

  

 $("#" + sNmId).kendoGrid({

        dataBound: function (e) {

            if (this.dataSource.group().length == 0) {

                setTimeout(function () {

                    $(".k-grouping-header").html(jsonResource[0]);

                });

            }

        }

    });

Thanks