javascript error for date when click edit

[JJ]

When I click the edit button, I will get javascript error for "value of 1/1/0001 12:00:00AM is not valid for selecteddate. should between mInDate and MasDate, parameter name "SelectedDate".
My date field "ProcessedDate" is a read only field, not sure why I got this error and how to solve it?

<telerik:GridBoundColumn DataField="ProcessedDate" FilterControlAltText="Filter ProcessDate column"
                                               HeaderText="ProcessDate0" UniqueName="ProcessDate"
                                              DataFormatString="{0:d}"  ReadOnly="True">
                                           </telerik:GridBoundColumn>

Thanks

[Tsvetina]

Hi,

Can you confirm that you do not have datepicker controls anywhere else on your page? Even in edit mode the GridBoundColumn does not render RadDatePicker controls, so the error should be coming from somewhere else.

All the best,
Tsvetina
the Telerik team