[Solved] Requisites For Grouping And Filtering

[João Loureiro]

Hi, I have a RadGridView defined like this:

 <telerik:RadGridView
                ItemsSource="{Binding AllLinks}"
                SelectionMode="Single"
                ShowGroupPanel="True"
                AutoGenerateColumns="False"
                Visibility="{Binding AllLinksHasValues, Converter={StaticResource Visibility}}"
                Grid.Row="2"
                IsReadOnly="True">

                <telerik:RadGridView.Columns>
                    <telerik:GridViewDataColumn
                            Header="Type"
                            IsGroupable="True"
                            DataMemberBinding="{Binding Linktypedescription.Value}"/>

                    <telerik:GridViewDataColumn
                            Header="Description"
                            DataMemberBinding="{Binding Linkdescription.Value}"/>

                    <telerik:GridViewDataColumn
                            Header="Source"
                            DataMemberBinding="{Binding Linksource.Value}"/>
                </telerik:RadGridView.Columns>

            </telerik:RadGridView>

However the options to filter don't appear on the columns header and when i try to drag the column header to the grouppanel i can't group any column.

My question is the binding data must implement any interface so i can group it? Why i can't group it?

[Pavel Pavlov]

Hi João Loureiro,

Please ensure  your business object implements either  IComparable or IEquatable

Regards,
Pavel Pavlov
the Telerik team

[Nadav]

You also need to make sure that you implement GetHashCode() properly.

Nadav