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GroupHeader Row style

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GridView
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Deepak
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Deepak asked on 06 Aug 2014, 06:13 AM
Hi  Team

I am using Gridview Grouping functionality and using grouprender mode as Flat.

When I am creating style and using template for the same gridview throwing an error to me .Please have a look of follwing code :-



<navigation:Page.Resources>
<telerik:Office_BlackTheme x:Key="Theme"/>
<telerik:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter"/>
<SolidColorBrush x:Key="ControlOuterBorder" Color="#FF848484"/>
<SolidColorBrush x:Key="ControlInnerBorder" Color="White"/>
<SolidColorBrush x:Key="GridView_GroupRowIndicator" Color="Black"/>
<ControlTemplate x:Key="GridViewGroupToggleButtonTemplate" TargetType="ToggleButton">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
<ContentPresenter/>
</Border>
</ControlTemplate>
<Style x:Key="GridViewGroupToggleButtonStyle" TargetType="ToggleButton">
<Setter Property="Template" Value="{StaticResource GridViewGroupToggleButtonTemplate}"/>
<Setter Property="HorizontalContentAlignment" Value="Left"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="9 0 0 0"/>
</Style>
<SolidColorBrush x:Key="GridView_RowIndicatorCellBackground" Color="#FFE4E4E4"/>
<ControlTemplate x:Key="GridViewGroupRowTemplate" TargetType="telerik:GridViewGroupRow">
<Grid x:Name="PART_GroupExpanderGrid">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition x:Name="PART_HeaderRow" MinHeight="{TemplateBinding MinHeight}"/>
<RowDefinition x:Name="ContentRow" Height="Auto"/>
</Grid.RowDefinitions>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="ExpandStateGroup">
<VisualState x:Name="Expanded">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="Content">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="BottomBorder">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderThickness" Storyboard.TargetName="IconOuterBorder">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Thickness>0</Thickness>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderThickness" Storyboard.TargetName="IconInnerBorder">
<DiscreteObjectKeyFrame KeyTime="00:00:00">
<DiscreteObjectKeyFrame.Value>
<Thickness>1 1 0 0</Thickness>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)" Storyboard.TargetName="ExpanderButton">
<EasingDoubleKeyFrame KeyTime="00:00:00.2" Value="180"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Collapsed">
<Storyboard>
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)" Storyboard.TargetName="ExpanderButton">
<EasingDoubleKeyFrame KeyTime="00:00:00.2" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="ToggleButtonBorder" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" Grid.Column="2" MinHeight="{TemplateBinding MinHeight}" telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="25"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Border Grid.Column="2" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True" Visibility="{Binding ShowHeaderAggregates, Converter={StaticResource BooleanToVisibilityConverter}, RelativeSource={RelativeSource TemplatedParent}}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
<telerik:AggregateResultsList HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" ItemsSource="{TemplateBinding AggregateResults}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
<telerik:AggregateResultsList.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</telerik:AggregateResultsList.ItemsPanel>
<telerik:AggregateResultsList.ItemTemplate>
<DataTemplate>
<telerik:GridViewAggregateResultCell AggregateResult="{Binding}" telerik:StyleManager.Theme="{StaticResource Theme}"/>
</DataTemplate>
</telerik:AggregateResultsList.ItemTemplate>
</telerik:AggregateResultsList>
</Border>
<Border x:Name="IconOuterBorder" BorderBrush="{StaticResource ControlOuterBorder}" BorderThickness="0 0 0 1" Background="Transparent" HorizontalAlignment="Stretch" telerik:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical">
<Border x:Name="IconInnerBorder" BorderBrush="{StaticResource ControlInnerBorder}" BorderThickness="1 1 0 1">
<Path x:Name="ExpanderButton" Grid.Column="0" Data="M0,0L1,0 2,0 2,0.99999991 3,0.99999991 3,2 4,2 4,0.99999991 5,0.99999991 5,0 5.9999999,0 7,0 7,0.99999991 5.9999999,0.99999991 5.9999999,2 5,2 5,3 4,3 4,4 3,4 3,3 2,3 2,2 1,2 1,0.99999991 0,0.99999991z" Fill="{StaticResource GridView_GroupRowIndicator}" HorizontalAlignment="Left" Height="5" Margin="{TemplateBinding Padding}" RenderTransformOrigin="0.5,0.5" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Width="7">
<Path.RenderTransform>
<RotateTransform/>
</Path.RenderTransform>
</Path>
</Border>
</Border>
<ToggleButton x:Name="HeaderButton" Background="{TemplateBinding Background}" Grid.ColumnSpan="3" Grid.Column="0" IsTabStop="{TemplateBinding IsTabStop}" IsChecked="{Binding IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Opacity="0" telerik:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical"/>
<ToggleButton BorderBrush="{x:Null}" BorderThickness="0" Background="Transparent" Grid.Column="1" IsTabStop="{TemplateBinding IsTabStop}" IsChecked="{Binding IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}" Padding="0 0 10 0" Style="{StaticResource GridViewGroupToggleButtonStyle}" telerik:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical">
<ContentPresenter ContentTemplate="{TemplateBinding GroupHeaderTemplate}" Content="{TemplateBinding GroupViewModel}" Grid.Column="1" Margin="0 0 10 0" VerticalAlignment="Center"/>
</ToggleButton>
<Border BorderBrush="{StaticResource ControlOuterBorder}" BorderThickness="0 0 0 1" Grid.ColumnSpan="2" Grid.Column="1" telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True">
<Border BorderBrush="{StaticResource ControlInnerBorder}" BorderThickness="0 1 1 1"/>
</Border>
</Grid>
</Border>
<Border x:Name="PART_IndicatorPresenter" BorderBrush="{StaticResource ControlOuterBorder}" BorderThickness="0 0 1 1" Grid.Column="0" telerik:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical" Visibility="{TemplateBinding RowIndicatorVisibility}" VerticalAlignment="Stretch" Width="25">
<Border BorderBrush="{StaticResource ControlInnerBorder}" BorderThickness="1" Background="{StaticResource GridView_RowIndicatorCellBackground}"/>
</Border>
<telerik:IndentPresenter Background="{TemplateBinding Background}" Grid.Column="1" IndentLevel="{TemplateBinding Level}" telerik:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical" telerik:StyleManager.Theme="{StaticResource Theme}"/>
<Border x:Name="Content" Grid.ColumnSpan="5" Grid.Column="0" Grid.Row="1" Visibility="Collapsed">
<StackPanel>
<telerik:GridViewVirtualizingPanel x:Name="PART_GridViewVirtualizingPanel"/>
<telerik:GridViewGroupFooterRow x:Name="Footer" telerik:StyleManager.Theme="{StaticResource Theme}"/>
</StackPanel>
</Border>
<Border x:Name="BottomBorder" BorderBrush="{StaticResource ControlOuterBorder}" BorderThickness="0 0 0 1" Grid.Column="2" Grid.Row="1" telerik:SelectiveScrollingGrid.SelectiveScrollingClip="True" Visibility="Collapsed" VerticalAlignment="Bottom"/>
</Grid>
</ControlTemplate>
<DataTemplate x:Key="GroupHeaderTemplate">
<ContentPresenter Content="{Binding Header}"/>
</DataTemplate>
<SolidColorBrush x:Key="GridView_GroupRowBackground" Color="#FFE4E4E4"/>
<SolidColorBrush x:Key="GridView_GridLinesItemBorder" Color="#FFCBCBCB"/>
<Style x:Key="GridViewGroupRowStyle1" TargetType="telerik:GridViewGroupRow">
<Setter Property="Template" Value="{StaticResource GridViewGroupRowTemplate}"/>
<Setter Property="GroupHeaderTemplate" Value="{StaticResource GroupHeaderTemplate}"/>
<Setter Property="Background" Value="{StaticResource GridView_GroupRowBackground}"/>
<Setter Property="BorderBrush" Value="{StaticResource GridView_GridLinesItemBorder}"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="HorizontalContentAlignment" Value="Left"/>
<Setter Property="Padding" Value="10 0 0 0"/>
<Setter Property="MinHeight" Value="25"/>
<Setter Property="AllowDrop" Value="True"/>
</Style>
</navigation:Page.Resources>



<Grid x:Name="LayoutRoot">
<Grid>

<telerik:RadGridView x:Name="rgrdPlayer"
CanUserFreezeColumns="False"
ShowGroupPanel="False"
ShowColumnFooters="False"
ShowGroupFooters="False"
GroupRenderMode="Flat"
EnableColumnVirtualization="False"
AutoGenerateColumns="True" >
<telerik:RadGridView.Resources>
<Style TargetType="telerik:GroupHeaderRow">
<Setter Property="ShowGroupHeaderColumnAggregates" Value="True" />
<Setter Property="ShowHeaderAggregates" Value="False" />
</Style>
</telerik:RadGridView.Resources>
<telerik:RadGridView.GroupRowStyle>
<StaticResource ResourceKey="GridViewGroupRowStyle1"/>
</telerik:RadGridView.GroupRowStyle>




</telerik:RadGridView>
</Grid>
</Grid>



I am trying to create a style for the GroupRowHeader.but its even not working with default style which is generated with the help of Expression Blend



Regards,
Deepak Joshi 

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Vanya Pavlova
Telerik team
answered on 06 Aug 2014, 08:23 AM
Hello Deepak,


Thank you for contacting us. 

We have tried to replicate the behavior you described, using the snippet provided, however to no avail.

Can you please take a look at the attached project and let us know how it differs from yours?  


Regards,
Vanya Pavlova
Telerik
 
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Deepak
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Vanya Pavlova
Telerik team
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