Hi,

How can different GroupHeaders depending on columns be set?

I have a grid with a collectionviewsource defined and initial grouping set on the collectionviewsource.

I have this Group Template defined in the  resources of the grid (which should be applied for all columns except one):

                <DataTemplate DataType="{x:Type xcdg:Group}">
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="{Binding Value}" />
                        <TextBlock Text=" (" />
                        <TextBlock Text="{Binding Items.Count}" />
                        <TextBlock Text=")" />
                    </StackPanel>
                </DataTemplate>

 

For the one special column I need following cause the underlying DataItem has a complex structure with a custom content template and a "Description" property that should be used in the grouping header:

                <DataTemplate DataType="{x:Type xcdg:Group}">
                    <StackPanel Orientation="Horizontal">
                        <TextBlock Text="{Binding Value.Description}" />
                        <TextBlock Text=" (" />
                        <TextBlock Text="{Binding Items.Count}" />
                        <TextBlock Text=")" />
                    </StackPanel>
                </DataTemplate>

 How can I reach this?

 

If it helps here is the column definition:

<xcdg:Column FieldName="BreakDefType" Title="AreaType">

                    <xceed:Column.CellContentTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding Path=Description}" />
                        </DataTemplate>
                    </xceed:Column.CellContentTemplate>

                    <xcdg:Column.CellEditor>
                        <xcdg:CellEditor x:Name="_uiSceneTypeCellEditor">
                            <xcdg:CellEditor.EditTemplate>
                                <DataTemplate>
                                    <ComboBox
                                        VerticalAlignment="Top"
                                        VirtualizingStackPanel.IsVirtualizing="True"
                                        VirtualizingStackPanel.VirtualizationMode="Recycling"
                                        xcdg:DataCell.IsCellFocusScope="True" MaxHeight="25"
                                        SelectedItem="{xcdg:CellEditorBinding}"
                                        ItemsSource="{Binding RelativeSource={RelativeSource AncestorType={x:Type BreakDefinitions:BreakDefinitionsView}}, Path=DataContext.AllDefinitionTypes, Mode=OneWay}"
                                        Background="{Binding RelativeSource={RelativeSource AncestorType={x:Type xceed:Cell}}, Path=Background, Mode=OneWay}">
                                        <ComboBox.ItemTemplate>
                                            <DataTemplate>
                                                <TextBlock Text="{Binding Path=Description}" />
                                            </DataTemplate>
                                        </ComboBox.ItemTemplate>
                                    </ComboBox>
                                </DataTemplate>
                            </xcdg:CellEditor.EditTemplate>
                        </xcdg:CellEditor>
                    </xcdg:Column.CellEditor>
                </xcdg:Column>

 
 

Please help!

Andreas

Just found a working solution on my own. :-)

Overring the ToString() method in the underlying type which is then used in the grouping header textbox was enough.

 

public override string ToString()
{
            return Description;
}

Nevertheless, when I have a more complicated datatemplate in the grouping header, the problem remains.

Bye.