GridView GroupDescriptors name not show

[Psyduck]

<telerik:RadGridView   ItemsSource  ="{Binding ResultList}"
                                     rad:GridViewSelectionUtilities.SelectedItems = "{Binding ResultItems}"
                                     Margin="10,5"
                                     GroupRenderMode ="Flat"
                                     HorizontalAlignment="Left"
                                     AutoGenerateColumns="False"
                                     ShowColumnHeaders="True"
                                     RowDetailsVisibilityMode="Visible"
                                     ShowGroupFooters="False"
                                     ShowGroupPanel="False"
                                     RowIndicatorVisibility="Collapsed" 
                                     EnableColumnVirtualization="True"
                                     EnableRowVirtualization="True"
                                     VirtualizingPanel.IsVirtualizing="True"
                                     ScrollViewer.HorizontalScrollBarVisibility ="Auto"
                                     ScrollViewer.VerticalScrollBarVisibility ="Visible"
                                     FrozenColumnsSplitterVisibility="Collapsed" 
                                     IsFilteringAllowed="False"
                                     IsReadOnly="True"
                                     AutoExpandGroups="False"
                                     ShowSearchPanel="True"
                                     SearchPanelCloseButtonVisibility="Collapsed"
                                     SelectionMode="Extended"
                                     SelectionUnit="FullRow"
                                     >
                   
                    <telerik:RadGridView.GroupHeaderTemplate>
                        <DataTemplate>
                            <StackPanel Orientation="Horizontal">
                                <CheckBox rad:GridViewGroupCheckUtilities.IsEnabled="True" IsThreeState="True" />
                            </StackPanel>
                        </DataTemplate>
                    </telerik:RadGridView.GroupHeaderTemplate>

                    <telerik:RadGridView.GroupDescriptors>
                        <telerik:GroupDescriptor Member="CategoryName"
                                                 SortDirection="Ascending">
                            <telerik:GroupDescriptor.AggregateFunctions>
                                <telerik:CountFunction />
                            </telerik:GroupDescriptor.AggregateFunctions>
                        </telerik:GroupDescriptor>
                    </telerik:RadGridView.GroupDescriptors>

.....

</telerik:RadGridView>

 

Hi. Guys.

I used the selectedItems, GroupHeaderTemplete using SDK Sample Browser provided by you.

I use Group Selection in the SDK sample list, but I want to change it to GroupDescriptors display Name, but it doesn't change.

Please check the image. Thx.

 

 

 

[Vladimir Stoyanov]

Hello Kim,

Thank you for the shared picture and sample code. 

When the GroupHeaderTemplate is defined, you are overriding the default look of the groups. In order to achieve what you are going for, you can display the key of the group next to the CheckBox. Here is what I have in mind:

 <telerik:RadGridView.GroupHeaderTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="{Binding Group.Key}" />
                        <CheckBox local:MyBehavior.IsEnabled="True" IsThreeState="True" Margin="5 0 0 0"/>
                    </StackPanel>
                </DataTemplate>
</telerik:RadGridView.GroupHeaderTemplate>

Do give this approach a try and let me know how it goes. 

Regards,
Vladimir Stoyanov
Progress Telerik

[Psyduck]

Hi. Thanks for posting the answer to my writing.

I tried but didn't get any results.

What does the binding value in the TextBlock mean? There is no Group.Key.

I have tested in many ways.

 

1. I tried putting different binding values.

ex) "{Binding ResultList.CategoryName}" But it is empty.

 

2.  When a fixed value is entered, it is displayed only as a fixed value.

ex) Text="Test Case" 

Test Case □

Test Case □

Test Case □

Test Case □

 

3. Create a new group key and bind it 

ex) Text="{Binding CategoryGroupKey}" ,         viewmodel : List<string> CategoryGroupKey = reulst.Groupby....

Also it is empty.

 

I haven't found a solution yet.

 

[Vladimir Stoyanov]

Hello Kim,

Thank you for the shared picture.

The DataContext inside the GroupHeaderTemplate is a viewmodel that the RadGridView creates for each group. It contains a Group property, which in turn has a key. I have attached the GroupSelection SDK example modified to demonstrate how you can display the group's key along with the checkbox. 

Can you check it out and let me know, if it helps?

Regards,
Vladimir Stoyanov
Progress Telerik

[Psyduck]

Great! 

Thanks. I fully understood and applied.

As a result, the group name was also included next to the checkbox.

Thank you again. :)