I am using a TreeListView control and have customized some of the properties to make it match with my application. Overall it seems to be working fine; however I have a handful of users for whom it shows up completely blank. I have been trying to track down the common denominator and it seems so far that all are on windows 7 so I'm thinking that's the cause (though I could be wrong). Below is my xaml file with the overrides I created (FYI the RDStyles.xaml that it references is just my standard colors as brushes, some button styles, etc.). Why would it just not show up?
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation">
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="RDStyles.xaml" />
</ResourceDictionary.MergedDictionaries>
<Style TargetType="{x:Type telerik:GridViewHeaderCell}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type telerik:GridViewHeaderCell}">
<Grid x:Name="PART_OuterGrid">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualStateGroup.Transitions>
<VisualTransition From="{x:Null}" GeneratedDuration="0:0:0.2" GeneratedEasingFunction="{x:Null}" Storyboard="{x:Null}" To="Normal"/>
<VisualTransition From="{x:Null}" GeneratedDuration="0:0:0.2" GeneratedEasingFunction="{x:Null}" Storyboard="{x:Null}" To="MouseOver"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimationUsingKeyFrames BeginTime="0" Duration="0:0:0.001" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="GridViewHeaderCell_Over">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Ascending">
<Storyboard>
<ObjectAnimationUsingKeyFrames BeginTime="0" Duration="0:0:0.001" Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<SolidColorBrush Color="Black"/>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="PART_SortIndicator">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="GridViewHeaderCell_Selected">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Descending">
<Storyboard>
<ObjectAnimationUsingKeyFrames BeginTime="0" Duration="0:0:0.001" Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<SolidColorBrush Color="Black"/>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="PART_SortIndicator">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="RenderTransform" Storyboard.TargetName="PART_SortIndicator">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<ScaleTransform ScaleY="-1" ScaleX="1"/>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="GridViewHeaderCell_Selected">
<DiscreteDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid x:Name="PART_HeaderCellGrid" MinHeight="26">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Border x:Name="GridViewHeaderCell" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" Margin="1,0,0,0">
<Border BorderBrush="#FF4B4B4B" BorderThickness="1" Background="{TemplateBinding Background}"/>
</Border>
<Border x:Name="GridViewHeaderCell_Over" BorderBrush="{StaticResource br_RDBlue}" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" Opacity="0">
<Border BorderBrush="{StaticResource br_RDBlue}" BorderThickness="1" Background="{StaticResource br_RDBlueHighlight}">
</Border>
</Border>
<Border x:Name="GridViewHeaderCell_Selected" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" Opacity="0">
<Border.BorderBrush>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF616161" Offset="0"/>
<GradientStop Color="#FF989898" Offset="1"/>
</LinearGradientBrush>
</Border.BorderBrush>
<Border BorderThickness="1">
<Border.BorderBrush>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFB69A78"/>
<GradientStop Color="#FFFFE17A" Offset="0.126"/>
</LinearGradientBrush>
</Border.BorderBrush>
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFFFD74E" Offset="0.996"/>
<GradientStop Color="#FFFFDCAB" Offset="0.17"/>
<GradientStop Color="#FFFFB062" Offset="0.57"/>
<GradientStop Color="#FFFFD18F" Offset="0.56"/>
<GradientStop Color="#FFFFBA74"/>
</LinearGradientBrush>
</Border.Background>
</Border>
</Border>
<ContentControl x:Name="ContentPresenter" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" Grid.Column="0" Foreground="{TemplateBinding Foreground}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" IsTabStop="{TemplateBinding IsTabStop}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
<ContentControl.Style>
<Style TargetType="{x:Type ContentControl}">
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="VerticalContentAlignment" Value="Stretch"/>
</Style>
</ContentControl.Style>
</ContentControl>
<Path x:Name="PART_SortIndicator" Grid.ColumnSpan="2" Data="M256,328L248,336 264,336" Fill="Black" HorizontalAlignment="Center" Height="3" Margin="0,3,0,0" Opacity="0" RenderTransformOrigin="0.5,0.5" Stretch="Fill" SnapsToDevicePixels="True" VerticalAlignment="Top" Width="5">
<Path.RenderTransform>
<TransformGroup>
<ScaleTransform ScaleY="1" ScaleX="1"/>
<SkewTransform AngleY="0" AngleX="0"/>
<RotateTransform Angle="0"/>
<TranslateTransform X="0" Y="0"/>
</TransformGroup>
</Path.RenderTransform>
</Path>
<ContentControl Grid.ColumnSpan="2" Foreground="Black" FontSize="7" HorizontalAlignment="Center" IsTabStop="{TemplateBinding IsTabStop}" Margin="14,0,0,0" VerticalAlignment="Top">
<ContentControl.Visibility>
<Binding Path="SortingIndex" RelativeSource="{RelativeSource TemplatedParent}">
<Binding.Converter>
<telerik:SortingIndexToVisibilityConverter/>
</Binding.Converter>
</Binding>
</ContentControl.Visibility>
<Binding Path="SortingIndex" RelativeSource="{RelativeSource TemplatedParent}">
<Binding.Converter>
<telerik:SortingIndexConverter/>
</Binding.Converter>
</Binding>
</ContentControl>
<telerik:FilteringDropDown x:Name="PART_DistinctFilterControl" Grid.Column="1" IsTabStop="False" Margin="0,0,4,0" Visibility="{TemplateBinding FilteringUIVisibility}">
<telerik:StyleManager.Theme>
<telerik:Office_BlackTheme/>
</telerik:StyleManager.Theme>
</telerik:FilteringDropDown>
<Thumb x:Name="PART_LeftHeaderGripper" Grid.ColumnSpan="2" HorizontalAlignment="Left" IsTabStop="{TemplateBinding IsTabStop}">
<Thumb.Style>
<Style TargetType="{x:Type Thumb}">
<Setter Property="Width" Value="8"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="VerticalContentAlignment" Value="Stretch"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Cursor" Value="SizeWE"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Thumb}">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Thumb.Style>
</Thumb>
<Thumb x:Name="PART_RightHeaderGripper" Grid.ColumnSpan="2" HorizontalAlignment="Right" IsTabStop="{TemplateBinding IsTabStop}">
<Thumb.Style>
<Style TargetType="{x:Type Thumb}">
<Setter Property="Width" Value="8"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="VerticalContentAlignment" Value="Stretch"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Cursor" Value="SizeWE"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Thumb}">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Thumb.Style>
</Thumb>
</Grid>
<telerik:FieldFilterControl x:Name="PART_FieldFilterControl" Column="{x:Null}" IsTabStop="False" telerik:TouchManager.IsTouchHitTestVisible="False" Grid.Row="1" Visibility="{TemplateBinding FieldFilterControlVisibility}">
<telerik:StyleManager.Theme>
<telerik:Office_BlackTheme/>
</telerik:StyleManager.Theme>
</telerik:FieldFilterControl>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="BorderBrush" Value="Gray"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="Padding" Value="5,0,3,0"/>
<Setter Property="DropIndicatorBrush" Value="White"/>
<Setter Property="DropIndicatorThickness" Value="2"/>
<Setter Property="Foreground" Value="White"/>
<Setter Property="SnapsToDevicePixels" Value="True"/>
<Setter Property="Background" Value="{StaticResource br_RDBlueLowlight}" />
</Style>
<Style TargetType="{x:Type telerik:GridViewCell}" x:Key="st_CellBase">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type telerik:GridViewCell}">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="SelectionStates">
<VisualState x:Name="Unselected"/>
<VisualState x:Name="Selected">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="Background_Selected">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="Background_Over">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="EditingStates">
<VisualState x:Name="Edited">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Margin" Storyboard.TargetName="PART_ContentPresenter">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Thickness>0</Thickness>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="VerticalAlignment" Storyboard.TargetName="PART_ContentPresenter">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<VerticalAlignment>Stretch</VerticalAlignment>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="PART_CellBorder">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<SolidColorBrush Color="White"/>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Display"/>
</VisualStateGroup>
<VisualStateGroup x:Name="DisabledStates">
<VisualState x:Name="Enabled"/>
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="PART_CellBorder">
<DiscreteDoubleKeyFrame KeyTime="0" Value="0.4"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="PART_ContentPresenter">
<DiscreteDoubleKeyFrame KeyTime="0" Value="0.7"/>
</DoubleAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="Background_Disabled">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="ValueStates">
<VisualState x:Name="CellValid"/>
<VisualState x:Name="CellInvalid">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="Background_Invalid">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="CellInvalidUnfocused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="Background_Invalid_Unfocused">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="PART_CellBorder" BorderBrush="{TemplateBinding VerticalGridLinesBrush}" Background="{Binding Background, RelativeSource={RelativeSource TemplatedParent}}">
<Border.BorderThickness>
<Binding ConverterParameter="Right" Path="VerticalGridLinesWidth" RelativeSource="{RelativeSource TemplatedParent}">
<Binding.Converter>
<telerik:GridLineWidthToThicknessConverter/>
</Binding.Converter>
</Binding>
</Border.BorderThickness>
</Border>
<Border x:Name="Background_Over" BorderBrush="#FFFFC92B" BorderThickness="1" Grid.ColumnSpan="2" Grid.Column="2" CornerRadius="1" Margin="1,1,2,2" Visibility="Collapsed">
<Border BorderBrush="White" BorderThickness="1">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFFFFBA3" Offset="1"/>
<GradientStop Color="#FFFFFBDA" Offset="0"/>
</LinearGradientBrush>
</Border.Background>
</Border>
</Border>
<Border x:Name="Background_Selected" BorderBrush="#FFFFC92B" BorderThickness="1" Grid.ColumnSpan="2" Grid.Column="2" CornerRadius="1" Margin="1,1,2,2" Visibility="Collapsed">
<Border BorderBrush="White" BorderThickness="1">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFFCE79F" Offset="1"/>
<GradientStop Color="#FFFDD3A8"/>
</LinearGradientBrush>
</Border.Background>
</Border>
</Border>
<Border x:Name="Background_Invalid" BorderBrush="#FFDB000C" BorderThickness="1" Background="White" Grid.ColumnSpan="2" Grid.Column="2" CornerRadius="1" Margin="1,1,2,2" Visibility="Collapsed">
<Border.ToolTip>
<ToolTip x:Name="validationTooltip" Content="{TemplateBinding Errors}" Placement="Right">
<ToolTip.Template>
<ControlTemplate TargetType="{x:Type ToolTip}">
<Grid x:Name="Root" Margin="5,0" Opacity="0" RenderTransformOrigin="0,0">
<Grid.RenderTransform>
<TranslateTransform X="-25"/>
</Grid.RenderTransform>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="OpenStates">
<VisualStateGroup.Transitions>
<VisualTransition From="{x:Null}" GeneratedDuration="0" GeneratedEasingFunction="{x:Null}" Storyboard="{x:Null}" To="{x:Null}"/>
<VisualTransition From="{x:Null}" GeneratedDuration="0:0:0.2" GeneratedEasingFunction="{x:Null}" To="Open">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="X" Storyboard.TargetName="xform">
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Root">
<SplineDoubleKeyFrame KeyTime="0:0:0.2" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualTransition>
</VisualStateGroup.Transitions>
<VisualState x:Name="Closed">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Root">
<SplineDoubleKeyFrame KeyTime="0" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Open">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="X" Storyboard.TargetName="xform">
<SplineDoubleKeyFrame KeyTime="0" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Root">
<SplineDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ItemsControl>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel IsItemsHost="True"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Border BorderBrush="#FFDC000C" BorderThickness="1" CornerRadius="1" MinHeight="22">
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFFF424C" Offset="1"/>
<GradientStop Color="#FFC92931"/>
</LinearGradientBrush>
</Border.Background>
<Border BorderBrush="White" BorderThickness="1">
<TextBlock Foreground="White" MaxWidth="250" Margin="4,1" TextWrapping="Wrap" Text="{Binding}"/>
</Border>
</Border>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</Grid>
</ControlTemplate>
</ToolTip.Template>
</ToolTip>
</Border.ToolTip>
<Grid Background="Transparent" HorizontalAlignment="Right" Height="12" Margin="1,-4,-4,0" VerticalAlignment="Top" Width="12">
<Path Data="M1,0L6,0A2,2,90,0,1,8,2L8,7z" Fill="#FFDB000C" Margin="1,3,0,0"/>
<Path Data="M0,0L2,0 8,6 8,8" Fill="White" Margin="1,3,0,0"/>
</Grid>
</Border>
<Border x:Name="Background_Invalid_Unfocused" BorderBrush="#FFCE7D7D" BorderThickness="1" Grid.ColumnSpan="2" Grid.Column="2" CornerRadius="1" Margin="1,1,1,2" Opacity="1" Visibility="Collapsed">
<Border BorderThickness="1">
<Border.BorderBrush>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFEBF4FD"/>
<GradientStop Color="#FFDBEAFD" Offset="1"/>
</LinearGradientBrush>
</Border.BorderBrush>
<Border.Background>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFFCDCDC"/>
<GradientStop Color="#FFFCC1C1" Offset="1"/>
</LinearGradientBrush>
</Border.Background>
</Border>
</Border>
<Border x:Name="Background_Disabled" BorderBrush="#FFF8F8F8" BorderThickness="1" Background="#FFE0E0E0" Grid.ColumnSpan="2" Grid.Column="2" Margin="0,0,1,1" Visibility="Collapsed"/>
<ContentPresenter x:Name="PART_ContentPresenter" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="Padding" Value="5,0,3,0"/>
<Setter Property="BorderBrush" Value="#FFCBCBCB"/>
<Setter Property="BorderThickness" Value="0,0,1,0"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="SnapsToDevicePixels" Value="True"/>
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
</Style>
<Style TargetType="{x:Type telerik:GridViewCell}" BasedOn="{StaticResource st_CellBase}" x:Key="st_CellTopJustify">
<Setter Property="VerticalContentAlignment" Value="Stretch" />
</Style>
<Style TargetType="{x:Type telerik:GridViewCell}" BasedOn="{StaticResource st_CellBase}" />
</ResourceDictionary>
1 Answer, 1 is accepted
Since I was not able to reproduce the issue you described and the styles that you have provided seem right to me, would it be possible to share more details regarding the issue you observe? Are the controls visualized at all or just the content within them is empty, like the GridViewCell, HeaderCells, etc.? Would it be possible to provide a screenshot of the undesired behavior so we can get a better idea? Can you test if the issue is present without the custom styles from your end?
Even though I am not thoroughly familiar with your project, I suggest you check the following topic - If your custom control just won`t show up. A good approach for identifying the issue might be using some WPF Inspecting tool, like WPF Snoop and inspect the visual tree`s content.
I will be looking forward to your reply.
Regards,
Stefan Nenchev
Telerik