Can't set RadGridview header after upgrade

[Michele]

Hello,
I've upgraded an old wpf application to latest Telerik WPF control version... before I've defined a GridViewCommandRow that will substitute the grouping header to the 2 buttons export/print

the code is taken from a your article and it's

public class GridViewCommandRow
   {
       public static readonly DependencyProperty IsEnabledProperty =
           DependencyProperty.RegisterAttached("IsEnabled",
                                               typeof (bool),
                                               typeof (GridViewCommandRow),
                                               new PropertyMetadata(false, OnIsEnabledChanged));

       public GridViewCommandRow(RadGridView grid)
       {
           RadGridView = grid;
           CommandRow = new ContentControl();
           CommandRow.SetValue(Grid.RowProperty, 0);

           if (ViewCommandTemplate == null)
           {
               var commandRowTemplate = Generic.GetInstance()["CommandRowTemplate"] as ControlTemplate;

               if (commandRowTemplate != null)
                   ViewCommandTemplate = commandRowTemplate;
           }
       }

       public ControlTemplate ViewCommandTemplate { get; set; }

       private ContentControl CommandRow { get; set; }

       public RadGridView RadGridView { get; private set; }

       public static void SetIsEnabled(DependencyObject dependencyObject, bool enabled)
       {
           dependencyObject.SetValue(IsEnabledProperty, enabled);
       }

       public static object GetIsEnabled(DependencyObject dependencyObject)
       {
           return dependencyObject.GetValue(IsEnabledProperty);
       }

       private static void OnIsEnabledChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
       {
           var radGridView = sender as RadGridView;
           if (radGridView != null)
           {
               if ((bool) e.NewValue)
               {
                   // Create new GridViewCommandRow and attach RadGridView events.
                   var commandRow = new GridViewCommandRow(radGridView);

                   commandRow.Attach();
               }
           }
       }

       private void Attach()
       {
           RadGridView.DataLoaded += RadGridView_DataLoaded;
       }

       private void RadGridView_DataLoaded(object sender, EventArgs e)
       {
           if (RadGridView.Items.Count > 0)
           {
               RadGridView.SelectedItem = RadGridView.Items[0];
           }


           Grid hierarchyGrid =
               RadGridView.ChildrenOfType<Grid>().FirstOrDefault(c => c.Name == "HierrarchyBackground");

           if (hierarchyGrid != null && CommandRow.Parent == null)
           {
               hierarchyGrid.Children.Add(CommandRow);

               CommandRow.Template = ViewCommandTemplate;
           }
       }
   }

The template is defined here

<ResourceDictionary x:Class="DOME.Modules.Core.Themes.Generic"
                    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:sys="clr-namespace:System;assembly=mscorlib"
                    xmlns:conv="clr-namespace:DOME.Modules.Core.Framework.Converters"
                    xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
                    xmlns:Telerik_Windows_Controls_Chromes="clr-namespace:Telerik.Windows.Controls.Chromes;assembly=Telerik.Windows.Controls"
                    xmlns:if="clr-namespace:DOME.Modules.Core" xmlns:local="clr-namespace:DOME.Modules.Core">

    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary>

            <SolidColorBrush x:Key="GridView_EditIndicatorBackground1" Color="#7F848484" />
            <SolidColorBrush x:Key="GridView_EditIndicatorBackground2" Color="#FFCBCBCB" />
            <SolidColorBrush x:Key="GridView_EditIndicatorBackground3" Color="#FF848484" />
            <SolidColorBrush x:Key="GridView_EditIndicatorBackground4" Color="#FFB6F7FD" />
            <LinearGradientBrush x:Key="GridViewGroupPanelInnerBorderBrush" EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFEAEDF6" Offset="0" />
                <GradientStop Color="#FFF2F5FA" Offset="1" />
            </LinearGradientBrush>
            <telerik:Office_BlackTheme x:Key="Theme" />
            <SolidColorBrush x:Key="ControlOuterBorder_Normal" Color="#FF848484" />
            <LinearGradientBrush x:Key="ControlBackground_Normal" EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="White" />
                <GradientStop Color="#FFD4D4D4" Offset="1" />
                <GradientStop Color="Gainsboro" Offset="0.42" />
                <GradientStop Color="#FFADADAD" Offset="0.43" />
            </LinearGradientBrush>
            <SolidColorBrush x:Key="ControlForeground_Normal" Color="#FF0E0E0E" />
            <CornerRadius x:Key="ControlOuterBorder_CornerRadius">1</CornerRadius>
            <LinearGradientBrush x:Key="InsertBackground" EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="White" />
                <GradientStop Color="#FFA9E0AF" Offset="1" />
                <GradientStop Color="#FFA9F7B0" Offset="0.42" />
                <GradientStop Color="#FF6D8F70" Offset="0.43" />
            </LinearGradientBrush>

            <Style x:Key="RadButtonStyle1" TargetType="telerik:RadButton">
                <Setter Property="BorderThickness" Value="1" />
                <Setter Property="BorderBrush" Value="{StaticResource ControlOuterBorder_Normal}" />
                <Setter Property="Background" Value="{StaticResource ControlBackground_Normal}" />
                <Setter Property="Foreground" Value="{StaticResource ControlForeground_Normal}" />
                <Setter Property="HorizontalContentAlignment" Value="Center" />
                <Setter Property="VerticalContentAlignment" Value="Center" />
                <Setter Property="Padding" Value="3" />
                <Setter Property="CornerRadius" Value="{StaticResource ControlOuterBorder_CornerRadius}" />
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="telerik:RadButton">
                            <Grid>
                                <VisualStateManager.VisualStateGroups>
                                    <VisualStateGroup x:Name="CommonStates">
                                        <VisualState x:Name="Normal" />
                                        <VisualState x:Name="Disabled">
                                            <Storyboard>
                                                <DoubleAnimation Duration="0" Storyboard.TargetName="Content"
                                         Storyboard.TargetProperty="Opacity" To="0.5" />
                                            </Storyboard>
                                        </VisualState>
                                    </VisualStateGroup>
                                </VisualStateManager.VisualStateGroups>
                                <Telerik_Windows_Controls_Chromes:ButtonChrome x:Name="buttonChrome"
                                                               BorderThickness="{Binding BorderThickness, RelativeSource={RelativeSource TemplatedParent}}"
                                                               telerik:StyleManager.Theme="{StaticResource Theme}" CornerRadius="{TemplateBinding CornerRadius}"
                                                               RenderEnabled="{TemplateBinding IsEnabled}" RenderFocused="{TemplateBinding IsFocused}"
                                                               RenderMouseOver="{TemplateBinding IsMouseOver}" RenderNormal="{TemplateBinding IsBackgroundVisible}"
                                                               RenderPressed="{TemplateBinding IsPressed}" Background="{StaticResource ControlBackground_Normal}" />
                                <ContentPresenter x:Name="Content"
                                  HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}"
                                  VerticalAlignment="{TemplateBinding VerticalContentAlignment}" OpacityMask="{StaticResource InsertBackground}"
                                  Content="{TemplateBinding Content}" ContentTemplate="{TemplateBinding ContentTemplate}" />
                            </Grid>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
                <Setter Property="FontWeight" Value="Normal" />
                <Setter Property="FontSize" Value="13.333" />
            </Style>

            <BooleanToVisibilityConverter x:Key="visibilityConverter"></BooleanToVisibilityConverter>

            <Style x:Key="FlowDocStyle" TargetType="{x:Type FlowDocumentScrollViewer}">
                <Setter Property="KeyboardNavigation.TabNavigation" Value="Local" />
                <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Hidden" />
                <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Hidden" />
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="{x:Type FlowDocumentScrollViewer}">
                            <Grid Language="en-us" Uid="Grid_26">
                                <Grid.Resources>
                                    <conv:HtmlToFlowDocumentConverter x:Key="htmlToXamlConverter" />
                                </Grid.Resources>
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="Auto" />
                                </Grid.RowDefinitions>
                                <Border CornerRadius="10" Uid="Border_49" Margin="0,0,0,0" Background="Azure">
                                    <ScrollViewer x:Name="PART_ContentHost"
                                HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Uid="ScrollViewer_8"
                                VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Background="#FFEFF7FC" Margin="5,5,5,5" Height="Auto"
                                Width="Auto">
                                    </ScrollViewer>
                                </Border>
                            </Grid>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
            </Style>

            <ControlTemplate x:Key="test" TargetType="{x:Type if:IFUserControl}">
                <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"
                Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="True">
                    <Grid>
                        <Grid.Resources>
                            <conv:HtmlToFlowDocumentConverter x:Key="htmlToXamlConverter" />
                        </Grid.Resources>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="16"></RowDefinition>
                            <RowDefinition></RowDefinition>
                        </Grid.RowDefinitions>
                        <StackPanel Grid.Row="0" HorizontalAlignment="Right" Orientation="Horizontal">
                            <Image Height="16" Width="16" x:Name="image">
                                <Image.Source>
                                    <BitmapImage UriSource="/DOME;component/Media/help.png"></BitmapImage>
                                </Image.Source>
                            </Image>
                            <Popup IsOpen="False" x:Name="HelpMessagePopUp" AllowsTransparency="True"
                     PopupAnimation="Fade" HorizontalOffset="-35" VerticalOffset="0">
                                <Grid>
                                    <Border BorderThickness="1" BorderBrush="Black" CornerRadius="10">
                                        <FlowDocumentScrollViewer x:Name="flowdoc"
                                              Document="{Binding HelpMessage,Converter={StaticResource htmlToXamlConverter}}" Style="{StaticResource FlowDocStyle}">
                                        </FlowDocumentScrollViewer>
                                    </Border>
                                </Grid>
                            </Popup>
                        </StackPanel>
                        <ContentPresenter Grid.Row="1" ContentTemplate="{TemplateBinding ContentTemplate}"
                              Content="{TemplateBinding Content}" ContentStringFormat="{TemplateBinding ContentStringFormat}"
                              HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                              SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                              VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
                    </Grid>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsMouseOver" Value="True" SourceName="image">
                        <Setter TargetName="HelpMessagePopUp" Property="IsOpen" Value="True" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>

            <ControlTemplate x:Key="CommandRowTemplate">
                <StackPanel Orientation="Horizontal" Background="{StaticResource GridViewGroupPanelInnerBorderBrush}">
                    <telerik:RadButton Command="{Binding PrintExportModel.PrintCommand}"
                             CommandParameter="{Binding RelativeSource= { RelativeSource AncestorType={x:Type telerik:RadGridView}}}" Width="40"
                             Height="35" Margin="5" Style="{StaticResource RadButtonStyle1}" IsEnabled="{Binding CanPrintExport}">
                        <telerik:RadButton.Content>
                            <StackPanel Orientation="Horizontal">
                                <Image Height="20" Width="20">
                                    <Image.Source>
                                        <BitmapImage UriSource="/DOME;component/Media/print.png"></BitmapImage>
                                    </Image.Source>
                                </Image>
                            </StackPanel>
                        </telerik:RadButton.Content>
                    </telerik:RadButton>
                    <telerik:RadButton Command="{Binding PrintExportModel.ExportCommand}"
                             CommandParameter="{Binding RelativeSource= { RelativeSource AncestorType={x:Type telerik:RadGridView}}}" Width="40"
                             Height="35" Margin="5" Style="{StaticResource RadButtonStyle1}" IsEnabled="{Binding CanPrintExport}">
                        <telerik:RadButton.Content>
                            <StackPanel Orientation="Horizontal">
                                <Image Height="20" Width="20">
                                    <Image.Source>
                                        <BitmapImage UriSource="/DOME;component/Media/export.png"></BitmapImage>
                                    </Image.Source>
                                </Image>
                            </StackPanel>
                        </telerik:RadButton.Content>
                    </telerik:RadButton>

                    <telerik:RadButton Command="{Binding PrintExportModel.ExportMasterDetailCommand}"
                             CommandParameter="{Binding RelativeSource= { RelativeSource AncestorType={x:Type telerik:RadGridView}}}" Width="40"
                             Height="35" Margin="5" Style="{StaticResource RadButtonStyle1}" IsEnabled="{Binding CanExportMasterDetail}"
                             Visibility="{Binding CanExportMasterDetail,Converter={StaticResource visibilityConverter}}">
                        <telerik:RadButton.Content>
                            <StackPanel Orientation="Horizontal">
                                <Image Height="20" Width="20">
                                    <Image.Source>
                                        <BitmapImage UriSource="/DOME;component/Media/export.png"></BitmapImage>
                                    </Image.Source>
                                </Image>
                            </StackPanel>
                        </telerik:RadButton.Content>
                    </telerik:RadButton>
                </StackPanel>
            </ControlTemplate>

            <x:Array Type="{x:Type telerik:RadMenuItem}" x:Key="ContextMenuCommandTemplate">
                <telerik:RadMenuItem Header="Expand all" CommandParameter="expand_all" />
                <!-- x:Name="expand"-->
                <telerik:RadMenuItem Header="Collapse all" CommandParameter="collapse_all" />
                <!--x:Name="collapse" -->
            </x:Array>
        </ResourceDictionary>
        <ResourceDictionary Source="MyDictionary.xaml" />
    </ResourceDictionary.MergedDictionaries>
</ResourceDictionary>

The buttons don't appear anymore...how can I fix it

[Dimitrina]

Hello,

Indeed, there is no Name "HierrarchyBackground" of the Grid element presented any more. You will have to change your code similar to:

Grid hierarchyGrid = RadGridView.ChildrenOfType<Grid>().FirstOrDefault();
if (hierarchyGrid != null && CommandRow.Parent == null)
{
    hierarchyGrid.Children.Add(CommandRow);
    CommandRow.Template = ViewCommandTemplate;
}

I hope this helps.

Regards,
Didie
Telerik