Develop Reference

C# WPF - ListViewItem cannot change background color

Changing the Foreground is possible and its working, but if i change the background or the BorderBrush nothing happens (default blue Backround color)
This is my ListView xaml code, am i missing anything?
<ListView.ItemContainerStyle>
<Style TargetType="{x:Type ListViewItem}">
<Style.Resources>
<Style TargetType="{x:Type Border}">
<Setter Property="CornerRadius" Value="20"/>
</Style>
</Style.Resources>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="Margin" Value="10, 5, 10, 0"/>
<Setter Property="Height" Value="67" />
<Setter Property="Width" Value="500"/>
<Setter Property="Background" Value="#FFD9D9D9"/>
<Style.Triggers>
<Trigger Property="IsSelected" Value="true">
<Setter Property="Background" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</ListView.ItemContainerStyle>
</ListView>

You need to copy the default template and edit it to be able to change the background colour:
<ListView.ItemContainerStyle>
<Style TargetType="{x:Type ListViewItem}">
<Style.Resources>
<Style TargetType="{x:Type Border}">
<Setter Property="CornerRadius" Value="20"/>
</Style>
</Style.Resources>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="Margin" Value="10, 5, 10, 0"/>
<Setter Property="Height" Value="67" />
<Setter Property="Width" Value="500"/>
<Setter Property="Background" Value="#FFD9D9D9"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<ControlTemplate.Resources>
<Style x:Key="FocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2" StrokeDashArray="1 2" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" SnapsToDevicePixels="true" StrokeThickness="1"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<SolidColorBrush x:Key="Item.MouseOver.Background" Color="#1F26A0DA"/>
<SolidColorBrush x:Key="Item.MouseOver.Border" Color="#a826A0Da"/>
<SolidColorBrush x:Key="Item.SelectedActive.Background" Color="#3D26A0DA"/>
<SolidColorBrush x:Key="Item.SelectedActive.Border" Color="#FF26A0DA"/>
<SolidColorBrush x:Key="Item.SelectedInactive.Background" Color="#3DDADADA"/>
<SolidColorBrush x:Key="Item.SelectedInactive.Border" Color="#FFDADADA"/>
</ControlTemplate.Resources>
<Border x:Name="Bd" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="true">
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
<ControlTemplate.Triggers>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="True"/>
</MultiTrigger.Conditions>
<Setter Property="Background" TargetName="Bd" Value="{StaticResource Item.MouseOver.Background}"/>
<Setter Property="BorderBrush" TargetName="Bd" Value="{StaticResource Item.MouseOver.Border}"/>
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelectionActive" Value="False"/>
<Condition Property="IsSelected" Value="True"/>
</MultiTrigger.Conditions>
<Setter Property="Background" TargetName="Bd" Value="{StaticResource Item.SelectedInactive.Background}"/>
<Setter Property="BorderBrush" TargetName="Bd" Value="{StaticResource Item.SelectedInactive.Border}"/>
</MultiTrigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="Selector.IsSelectionActive" Value="True"/>
<Condition Property="IsSelected" Value="True"/>
</MultiTrigger.Conditions>
<Setter Property="Background" TargetName="Bd" Value="{StaticResource Item.SelectedActive.Background}"/>
<Setter Property="BorderBrush" TargetName="Bd" Value="{StaticResource Item.SelectedActive.Border}"/>
</MultiTrigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="TextElement.Foreground" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
Look at the SolidColorBrush resources in the template and edit them as per your requirements.
Using a Trigger directly in the Style won't work beceause of how the default template is defined. Please refer to this blog post for more information.

change button background when mouse is over the button

I wanted to change button mousover color , When i could't to change it , I decided to change the background
I use this code but it doesn't work
<Button Name="btnClose" IsHitTestVisible="False">
<Button.Style>
<Style TargetType="Button">
<Setter Property="Width" Value="50"/>
<Setter Property="Height" Value="30"/>
<Setter Property="HorizontalAlignment" Value="Right"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="Background" Value="Transparent"/>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
I use this in usercontrol
Thank you for answer

For some elements you cannot just change properties in the style. Button is one of them. You really need to change the whole template.
Easiest way is to right click on your button and select Edit Template >> Edit a copy:
This will create you a new Style with the template which you can modify as you want:
<Window.Resources>
<Style x:Key="FocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="1" StrokeDashArray="1 2"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<SolidColorBrush x:Key="Button.Static.Background" Color="#FFDDDDDD"/>
<SolidColorBrush x:Key="Button.Static.Border" Color="#FF707070"/>
<SolidColorBrush x:Key="Button.MouseOver.Background" Color="#FFBEE6FD"/>
<SolidColorBrush x:Key="Button.MouseOver.Border" Color="#FF3C7FB1"/>
<SolidColorBrush x:Key="Button.Pressed.Background" Color="#FFC4E5F6"/>
<SolidColorBrush x:Key="Button.Pressed.Border" Color="#FF2C628B"/>
<SolidColorBrush x:Key="Button.Disabled.Background" Color="#FFF4F4F4"/>
<SolidColorBrush x:Key="Button.Disabled.Border" Color="#FFADB2B5"/>
<SolidColorBrush x:Key="Button.Disabled.Foreground" Color="#FF838383"/>
<Style x:Key="ButtonStyle1" TargetType="{x:Type Button}">
<Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisual}"/>
<Setter Property="Background" Value="{StaticResource Button.Static.Background}"/>
<Setter Property="BorderBrush" Value="{StaticResource Button.Static.Border}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
<ContentPresenter x:Name="contentPresenter" Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsDefaulted" Value="true">
<Setter Property="BorderBrush" TargetName="border" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Background" TargetName="border" Value="Red"/> <!--HERE-->
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.MouseOver.Border}"/>
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Pressed.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Pressed.Border}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Disabled.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Disabled.Border}"/>
<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="{StaticResource Button.Disabled.Foreground}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>

The IsHitTestVisible property is causing trouble. Its used only when you are making your own composite controls and don't want some parts to respond on interaction.
Your working XAML should be like
<Button Name="btnClose">
<Button.Style>
<Style TargetType="Button">
<Setter Property="Width" Value="50"/>
<Setter Property="Height" Value="30"/>
<Setter Property="HorizontalAlignment" Value="Right"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="Background" Value="Transparent"/>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>

How to apply CueBanner for a TextBox in xaml

I want to have a TextBox with CueBanner but it still does not work.
What have I made wrong?
I think the problem is that I am using {RelativeSource TemplatedParent} in Resources. How can I do that without putting in Resources?
My xaml code:
<Style TargetType="{x:Type TextBox}">
<Setter Property="SnapsToDevicePixels" Value="True" />
<Setter Property="OverridesDefaultStyle" Value="True" />
<Setter Property="KeyboardNavigation.TabNavigation" Value="None" />
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="MinWidth" Value="120" />
<Setter Property="MinHeight" Value="20" />
<Setter Property="AllowDrop" Value="true" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<ControlTemplate.Resources>
<VisualBrush x:Key="CueBannerBrush" AlignmentX="Left" AlignmentY="Center" Stretch="None">
<VisualBrush.Visual>
<Label Content="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Tag}"
Foreground="LightGray" />
</VisualBrush.Visual>
</VisualBrush>
</ControlTemplate.Resources>
<Border x:Name="Border" CornerRadius="0" Padding="2" BorderThickness="1" BorderBrush="Black">
<ScrollViewer Margin="0" x:Name="PART_ContentHost" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="Text" Value="{x:Static sys:String.Empty}">
<Setter Property="Background" Value="{StaticResource CueBannerBrush}" />
</Trigger>
<Trigger Property="Text" Value="{x:Null}">
<Setter Property="Background" Value="{StaticResource CueBannerBrush}" />
</Trigger>
<Trigger Property="IsKeyboardFocused" Value="True">
<Setter Property="Background" Value="LightGreen"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Thanks for any advice.
EDIT
My problem is solved and here is my final solution:
<Style TargetType="{x:Type TextBox}">
<Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
<Setter Property="BorderBrush" Value="Gray"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="KeyboardNavigation.TabNavigation" Value="None"/>
<Setter Property="HorizontalContentAlignment" Value="Left"/>
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="AllowDrop" Value="true"/>
<Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
<Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
<Setter Property="SnapsToDevicePixels" Value="True" />
<Setter Property="OverridesDefaultStyle" Value="True" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<Border x:Name="Border" CornerRadius="0" Padding="2"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="1"
Background="{TemplateBinding Background}">
<Grid>
<ScrollViewer Margin="0" x:Name="PART_ContentHost" />
<TextBlock x:Name="Watermark"
Text="{Binding Tag, RelativeSource={RelativeSource TemplatedParent}}"
Foreground="LightGray" Margin="5,0" Visibility="Collapsed"/>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="Text" Value="{x:Static sys:String.Empty}">
<Setter Property="Visibility" TargetName="Watermark" Value="Visible" />
</Trigger>
<Trigger Property="Text" Value="{x:Null}">
<Setter Property="Visibility" TargetName="Watermark" Value="Visible" />
</Trigger>
<Trigger Property="IsMouseCaptured" Value="True">
<Setter Property="Visibility" TargetName="Watermark" Value="Collapsed"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Opacity" TargetName="Border" Value="0.56"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Cursor" Value="IBeam" />
</Trigger>
</Style.Triggers>
</Style>

So I wasn't sure what you meant by "CueBanner" at first until I realized it was just synonymous with "Watermark" pretty much. So as a quick example, this would be a quick and easy alternative (since at first glance I don't understand what made that VisualBrush stuff necessary you had in there) made a bit more clean and re-usable though I'm sure you'll want to change the colors I used just for the example. You might also look into something like the Extended Toolkit for some more of this stuff built in, but theirs for example does watermarks differently than this example.
Anyhow, concept example Style template (noticed added the mscorlib namespace in case you don't have it in your res. dict. already for sys:String;
<SolidColorBrush x:Key="TextBox.Static.Border" Color="#FFABAdB3"/>
<SolidColorBrush x:Key="TextBox.MouseOver.Border" Color="#FF7EB4EA"/>
<SolidColorBrush x:Key="TextBox.Focus.Border" Color="#FF569DE5"/>
<Style x:Key="CWWatermarkTextBoxStyle" TargetType="{x:Type TextBox}"
xmlns:sys="clr-namespace:System;assembly=mscorlib">
<Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
<Setter Property="BorderBrush" Value="{StaticResource TextBox.Static.Border}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="KeyboardNavigation.TabNavigation" Value="None"/>
<Setter Property="HorizontalContentAlignment" Value="Left"/>
<Setter Property="FocusVisualStyle" Value="{x:Null}"/>
<Setter Property="AllowDrop" Value="true"/>
<Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
<Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
<Grid>
<ScrollViewer x:Name="PART_ContentHost" Focusable="false" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden"/>
<TextBlock x:Name="GenericWatermark"
Text="{Binding Tag, RelativeSource={RelativeSource TemplatedParent}}"
Foreground="Red" Margin="5,0" Visibility="Collapsed"/>
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="Text" Value="{x:Static sys:String.Empty}">
<Setter Property="Visibility" TargetName="GenericWatermark" Value="Visible" />
<Setter Property="Background" Value="Yellow" />
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Opacity" TargetName="border" Value="0.56"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource TextBox.MouseOver.Border}"/>
</Trigger>
<Trigger Property="IsKeyboardFocused" Value="true">
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource TextBox.Focus.Border}"/>
<Setter Property="Visibility" TargetName="GenericWatermark" Value="Collapsed"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsInactiveSelectionHighlightEnabled" Value="true"/>
<Condition Property="IsSelectionActive" Value="false"/>
</MultiTrigger.Conditions>
<Setter Property="SelectionBrush" Value="{DynamicResource {x:Static SystemColors.InactiveSelectionHighlightBrushKey}}"/>
</MultiTrigger>
</Style.Triggers>
</Style>
....and usage at the instance example;
<TextBox Tag="HEY LOOK! I'M A TEXTBOX WITH A WATERMARK! WEEEE! :)"
Style="{StaticResource CWWatermarkTextBoxStyle}"/>
Voila, a quick and simple wpf xaml textbox with watermark. Hope this helps, cheers.

WPF ItemsControl.AlternationIndex doesn't work in a Trigger

I read many things about this, but I can't find the solution to my problem.
I defined a new style for ListViewItem but the property of ItemsControl.AlternationIndex doesn't trigger.
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="VerticalContentAlignment" Value="Stretch" />
<Setter Property="Background" Value="{DynamicResource StandardBackgroundColor}" />
<Setter Property="Foreground" Value="{StaticResource StandardForegroundColor}" />
<Style.Triggers>
<Trigger Property="ItemsControl.AlternationIndex" Value="0">
<Setter Property="Background" Value="#181818" />
</Trigger>
<Trigger Property="ItemsControl.AlternationIndex" Value="1">
<Setter Property="Background" Value="#626262" />
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{StaticResource DisabledGray}" />
</Trigger>
</Style.Triggers>
</Style>
<Style x:Key="IOListViewItem" TargetType="{x:Type ListViewItem}" BasedOn="{StaticResource {x:Type ListViewItem}}">
<Setter Property="Height" Value="60" />
<Setter Property="FontSize" Value="18" />
<Setter Property="FontWeight" Value="Bold" />
<Setter Property="SnapsToDevicePixels" Value="true"/>
<Setter Property="OverridesDefaultStyle" Value="True"></Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<Border Name="Border" Padding="2" SnapsToDevicePixels="true">
<ContentPresenter
Focusable="True"
Visibility="Visible"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"
RecognizesAccessKey="True"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="ItemsControl.AlternationIndex" Value="0">
<Setter Property="Background" Value="Red" />
</Trigger>
<Trigger Property="ItemsControl.AlternationIndex" Value="1">
<Setter Property="Background" Value="#626262" />
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{StaticResource DisabledGray}" />
</Trigger>
<Trigger Property="IsSelected" Value="true">
<Setter TargetName="Border" Property="Background" Value="{StaticResource Blue}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Thank you very much!

set AlternationCount="2" for ListView to see different colors for alternate items
also ControlTemplate in IOListViewItem style doesn't use Backround
<Border Name="Border" Padding="2"
Background="{TemplateBinding Background}"
SnapsToDevicePixels="true">

C# WPF - How to modify the ToolBar.ButtonStyleKey style

I have requirement to show the toolbar button border on mouse Hovering and otherwise hide it. I tried to do the following:
<Style x:Key="{x:Static ToolBar.ButtonStyleKey}" TargetType="Button" BasedOn="{StaticResource {x:Static ToolBar.ButtonStyleKey}}">
<Setter Property="Foreground" Value="Blue"/>
<Setter Property="Control.Background" Value="Transparent" />
<Setter Property="Control.BorderBrush" Value="Transparent" />
<Setter Property="Control.BorderThickness" Value="1" />
<Setter Property="HorizontalAlignment" Value="Center"/>
<Setter Property="VerticalAlignment" Value="Center"/>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Control.BorderBrush" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
but it doesn't work as expected. What I expect to happen is that on mouse over the border will turn into red color otherwise will be transparent. Actual result was that it act like in the default behavior with the default colors.
Surely I'm doing something wrong.
Does anyone knows what is it?

Try the following to override button style identified by the ToolBar.ButtonStyleKey when used inside a ToolBar.
<ToolBar.Resources>
<Style x:Key="{x:Static ToolBar.ButtonStyleKey}" TargetType="{x:Type Button}">
<Setter Property="Foreground"
Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="Padding" Value="2"/>
<Setter Property="BorderThickness" Value="4"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="HorizontalAlignment" Value="Center"/>
<Setter Property="VerticalAlignment" Value="Center"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="Bd"
SnapsToDevicePixels="true"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Padding="{TemplateBinding Padding}">
<ContentPresenter
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="BorderBrush" TargetName="Bd" Value="Orange"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ToolBar.Resources>