GridViewComboBoxColumn filtering

[ZooY]

// App.xaml.cs
public partial class App : Application
{
    public Dictionary<int, string> AgreementCategoryPicklist { get; set; }
}

/* XAML */

<UserControl.Resources>
    <MySilverlightApplication:App x:Key="CurrentApplication" />
</UserControl.Resources>

...

<telerik:RadGridView
    Name="MappedDataGrid"
    AutoGenerateColumns="False"
    ItemsSource="{Binding Data}">

    <telerik:RadGridView.Columns>

        <telerik:GridViewComboBoxColumn
            Header="Категория"
            IsFilterable="True"
            IsCustomSortingEnabled="True"
            IsFilteringDeferred="True"
            ShowDistinctFilters="True"
            ShowFieldFilters="True"
            ShowFilterButton="True"
            DataMemberBinding="{Binding Path=[agreement_new_agreement_category_confirmedcode], Mode=TwoWay}"
            ItemsSourceBinding="{Binding Path=AgreementCategoryPicklist, Source={StaticResource CurrentApplication}}"
            DisplayMemberPath="Value"
            SelectedValueMemberPath="Key"
            UniqueName="AgreementCategory" />

    </telerik:RadGridView.Columns>
</telerik:RadGridView>

// Code-behind

((App)Application.Current).AgreementCategoryPicklist = result.Metadata.AgreementCategoryPicklist;
MappedDataGrid.ItemsSource = result.Data;

For the GridViewComboBoxColumn column filter not display. I can not understand why, what am I doing wrong?

[Dimitrina]

Hello Roman,

 Does your column filter not show at all?  Generally when you set the ItemsSource of the GridViewComboBoxColumn, the display values from this source will be displayed in the filtering control.

I have noticed that you use ItemsSourceBindnig. Due to the specifics of ItemsSourceBinding, the filtering control will again display the properties from the source of the grid, not the displayed values. 

Regards,
Didie
the Telerik team

[ZooY]

If I use the ItemsSource I get an empty list.
In other fields, filters are working correct. Problems with only GridViewComboBoxColumn 

[Dimitrina]

Hi Roman,

Have you set the right source for the ItemsSource binding? Could you please check if the reason for the empty cells is the one mentioned in this troubleshooting article? 

Regards,
Didie
the Telerik team

[ZooY]

When I use this line

ItemsSourceBinding="{Binding Path=AgreementCategoryPicklist, Source={StaticResource CurrentApplication}}"

I get correct listbox, but I do not see the filter

When I use this line

ItemsSource="{Binding Path=AgreementCategoryPicklist, Source={StaticResource CurrentApplication}}"

I do not get listbox
Оther parameters I do not change.

List source is a StaticResource as stated in troubleshooting article.

[Dimitrina]

Hi Roman,

 Does any Keys of the bound "AgreementCategoryPicklist " correspond to the "agreement_new_agreement_category_confirmedcode" per each item in the GridView? 

Kind regards,
Didie
the Telerik team

[ZooY]

Yes, all the keys "agreementtsategorypitsklist" correspond to the field "agreement_new_agreement_category_confirmedcode" and when the list is displayed, the desired value is selected.

[Dimitrina]

Hello Roman,

 This is strange, at my end this scenario works fine. Would it be possible for you to prepared for us a small repro produce that we can debug at our end?

Kind regards,
Didie
the Telerik team