GridDateTimeColumn filter with null values

[Alex Jimenez]

Hi,

I have this example : 

                    <telerik:GridDateTimeColumn
                        DataField="fecha_seguimiento"
                        HeaderText="SEGUIMIENTO" SortExpression="fecha_seguimiento"
                        UniqueName="fecha_seguimiento" PickerType="DatePicker"
                        FilterControlWidth="110px" DataFormatString="{0:dd/MM/yyyy}"
                        DataType="System.DateTime" >
                    </telerik:GridDateTimeColumn>

When I  filter for this date colum, it's works perfectly if all records have information, but if a record contains NULL I get the following error:

Línea : 6
Error : Sys.WebForms.PageRequestManagerServerErrorException: La conversión especificada no es válida.

How or where I can specify in the filter that this column may contain null or date and work it.

Thanks!

[Shinu]

Hello Alex,

I got filtering to work even when there are NULL values, after I set the EnableLinqExpressions of the grid to false. You can refer the following forum link which discusses on similar scenario.
Filtering IsNull on DateTimeColumn

-Shinu

[Alex Jimenez]

Hi Shinu,

works perfectly

Thanks!!!