[Solved] Nullable DateTime column leads to converter exceptions

[Licenses]

Hello,

I have a grid with the following column in it:

<telerikGrid:GridViewDataColumn DataMemberBinding="{Binding Date}" Width="120" DataFormatString="{}{0:dd/MM/yyyy HH:mm}"/>

Each time I click on the filter icon (standard Telerik grid filters), the following exception is shown in the output:

System.Windows.Data Error: 'MS.Internal.Data.DynamicValueConverter' converter failed to convert value '' (type 'Telerik.Windows.Data.FilterDescriptor+FilterDescriptorUnsetValue'); BindingExpression: Path='Value' DataItem='Telerik.Windows.Controls.GridView.FilterDescriptorViewModel' (HashCode=66662461); target element is 'Telerik.Windows.Controls.RadDateTimePicker' (Name=''); target property is 'SelectedValue' (type 'System.Nullable`1[System.DateTime]').. System.InvalidOperationException: Can't convert type Telerik.Windows.Data.FilterDescriptor+FilterDescriptorUnsetValue to type System.DateTime.
   bij MS.Internal.Data.DefaultValueConverter.Create(Type sourceType, Type targetType, Boolean targetToSource)
   bij MS.Internal.Data.DefaultValueConverter.Create(Type sourceType, Type targetType, Boolean targetToSource)
   bij MS.Internal.Data.DynamicValueConverter.EnsureConverter(Type sourceType, Type targetType)
   bij MS.Internal.Data.DynamicValueConverter.Convert(Object value, Type targetType, Object parameter, CultureInfo culture)
   bij System.Windows.Data.BindingExpression.ConvertToTarget(Object value).

The filtering seems to work however, but I'd still like to get rid of this exception.

Any ideas?

Thanks,
Sodi

[Rossen Hristov]

Hi Sodi We,

We will fix this for the next internal build and the exception will not be thrown.

Best wishes,
Ross
the Telerik team

[Licenses]

Thanks.

Do you have any idea when the Q3 release is coming? We are wondering whether we can wait for Q3 or use the internal build...

[Rossen Hristov]

Hi Sodi We,

It cannot make it for the Q3 Release, but for its first internal build which will be next week.

Kind regards,
Ross
the Telerik team