Grouping disabled by default - what am I doing wrong?

[Anders]

Hi all,

I'm using the grid and would like to be able to group by all columns - I've had it working but it stopped working and I can't figure out why...

To be specific, the grid shows up just fine, but when I try to drag I just get the 'forbidden' symbol over the top area.

I've tried to set IsGroupable=true (even if it's supposed to be default), but it doesn't change anything.

Below is my xaml - any clues?

Thanks,

Anders, Denmark

 <Grid>
        <telerik:RadGridView AutoGenerateColumns="False" x:Name="grid" SelectionMode="Extended" ItemsSource="{Binding CombinationMembers}" Margin="0,0,0,37">
            <telerik:RadGridView.Columns>
                <telerik:GridViewSelectColumn />
                <telerik:GridViewDataColumn Header="Item Parent" DataMemberBinding="{Binding Path=ViewModelBase.ParentItemContext, Mode=OneWay}"  />
                <telerik:GridViewDataColumn Header="Item" DataMemberBinding="{Binding Path=ViewModelBase.DisplayName,Mode=OneWay}"  />
                <telerik:GridViewDataColumn Header="Type" DataMemberBinding="{Binding Path=ViewModelBase.DisplayType,Mode=OneWay}" />
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>
        <telerik1:RadButton Content="_Cancel" Height="Auto" HorizontalAlignment="Right" Margin="0,0,53,12" VerticalAlignment="Bottom" IsCancel="True" />
        <telerik1:RadButton Content="_Select" Height="Auto" HorizontalAlignment="Right" Margin="0,0,12,12" VerticalAlignment="Bottom" Command="{Binding App}" Click="RadButton_Click" />
    </Grid>

[Vanya Pavlova]

Hello Anders,

 

I tried to replicate you problem, but with no avail. Can you please share with us the source code you are currently using?  In addition to this you can send us a small application where we can see the complete source code and to provide you with an appropriate soluion. Any additional information will be highly appreciated as well.

Greetings,
Vanya Pavlova
the Telerik team

[Anders]

My problem is solved.

I exposed the propeties on the collection item that I bind to (while before I bound to property on an object referenced by the collection item). While it was valid before, it seems this approach is better understood by the control. And perhaps better coding style as weel...

        <telerik:RadGridView AutoGenerateColumns="False" x:Name="grid" SelectionMode="Extended" ItemsSource="{Binding CombinationMembers}" Margin="0,0,0,37">
            <telerik:RadGridView.Columns>
                <telerik:GridViewSelectColumn />
                <telerik:GridViewDataColumn Header="Item Parent" DataMemberBinding="{Binding ParentItemContext}" />
                <telerik:GridViewDataColumn Header="Item" DataMemberBinding="{Binding DisplayName}" />
                <telerik:GridViewDataColumn Header="Type" DataMemberBinding="{Binding DisplayType}" />
            </telerik:RadGridView.Columns>
        </telerik:RadGridView>