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how to base a style on another style and refer to its elements?

i have an ExtendedTreeView control which extendes TreeView. My extendedTreeView has a property called Highlight so unlike a normal TreeView, i want the extendedTreeView to highlight items based on this Highlight property rather than IsSelected. So I have a style defined for a TreeView like below.
<Style x:Key="TreeViewStyle" TargetType="{x:Type TreeViewItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TreeViewItem}">
<Border Name="Bd"
Background="Transparent"
//other stuff
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="true">
<Setter TargetName="Bd" Property="Background" Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Background}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
And then i define another style for the extendedTreeView which is based on the TreeViewStyle. The problem is that when i try to set "Bd" which is the border, it can't recognize it and has no idea what im referring to.
<Style x:Key="TreeViewStyle2" TargetType="{x:Type controls:ExtendedTreeView}" BasedOn="{StaticResource TreeViewStyle}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TreeViewItem}">
<ControlTemplate.Triggers>
<Trigger Property="controls:ExtendedTreeView.Highlight" Value="true">
<Setter TargetName="Bd" Property="Background" Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Background}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
IS there anyway of fixing this? or an alternative way of doing it? thanks

Multiple styles and content on one button

I have a HomePage with a number of buttons on that I am trying to get to do a couple of things. Firstly, I have a Style in a ResourceDictionary that dictates the overall 'look and feel' of the buttons. It looks like this:
<Style TargetType="Button" x:Key="HomeButton">
<Setter Property="Foreground" Value="White"/>
<Setter Property="Background" Value="#06658D"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border Background="{TemplateBinding Background}" BorderBrush="White" BorderThickness="1">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="FontWeight" Value="Bold"/>
<Setter Property="Background" Value="White"/>
<Setter Property="Foreground" Value="#06658D"/>
</Trigger>
</Style.Triggers>
</Style>
Nothing too complicated, however I want the MouseOver effect to persist after being clicked. So now I am looking at doing something like this:
<Button Grid.Row="0" Style="{StaticResource HomeButton}" Content="Contacts">
<Style TargetType="{x:Type Button}">
<Style.Triggers>
<DataTrigger Binding="{Binding ContactsClicked}" Value="True">
<Setter Property="Background" Value="White"/>
<Setter Property="Foreground" Value="#06658D"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Button>
I'll bind the command element of the Button to set ContactsClicked = true and reset this when another button is pressed. However, I get the error saying that Content is set multiple times.
Is it possible to have an overall Style of the Button set, as well as a 'Clickedstyle and to have aTextBlockdisplaying text on the button all at once or am I approaching this wrong? I am trying to not have an individual overall style for every singleButton`as that's a lot of repeated code.
For clarity this is what I am aiming for:

I've managed to find a solution myself, instead of using a Button us a ToggleButton instead:
<Style TargetType="ToggleButton" x:Key="HomeButton">
<Setter Property="Foreground" Value="White"/>
<Setter Property="Background" Value="#06658D"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Border Background="{TemplateBinding Background}" BorderBrush="White" BorderThickness="1">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsPressed" Value="True">
<Setter Property="Background" Value="Black" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="FontWeight" Value="Bold"/>
<Setter Property="Background" Value="White"/>
<Setter Property="Foreground" Value="#06658D"/>
</Trigger>
<Trigger Property="IsChecked" Value="True">
<Setter Property="FontWeight" Value="Bold"/>
<Setter Property="Background" Value="White"/>
<Setter Property="Foreground" Value="#06658D"/>
</Trigger>
</Style.Triggers>
</Style>

I would add this as a comment but im not allowed.
If your goal is that the button will stay selected after it is clicked, why not use a RadioButton? A RadioButton has a built-in property called IsChecked but will also remain "Checked" or "Selected" even after multiple clicks.
Of course you can define the behavior and the styles in a similar manner, create a simple Trigger on the property IsChecked.
If more explanation is needed, just say so.

Transparent button background in WPF using style

I've found this topic about setting the border of a button to transparent.
This works fine, but I want to use this for the button background and not the border.
Solution in link which I've put in <Window.Resources>...</Window.Resources>:
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="Green"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Red"/>
</Trigger>
</Style.Triggers>
</Style>
Source: How do you change Background for a Button MouseOver in WPF?
How can edit this code so I can use this to set the background of my button to transparent and not the border of it?

Try this snippet for a transparent button:
<Button Style="{StaticResource {x:Static ToolBar.ButtonStyleKey}}" BorderThickness="0">
<-- PUT BUTTON CONTENT HERE e.g. a Image -->
</Button>

Found the solution for my issue:
Apparently you have to add the triggers within the ControlTemplate under ControlTemplate.Trigger. Andd after you've done that the thing with borders is that you have to set a TargetName in the Border tag and then set the reference (-> TargetName="XXXXX") to the properties which you've named in the border tag.
So:
<Window.Resources>
<Style x:Key="MenuButton" TargetType="Button">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Height" Value="40" />
<Setter Property="Width" Value="Auto" />
<Setter Property="Foreground" Value="White" />
<Setter Property="Margin" Value="45,0,0,0" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<Border Name="MenuBorder" SnapsToDevicePixels="True" BorderBrush="Black" Background="{TemplateBinding Background}" BorderThickness="0,0,0,2" >
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="Button.IsFocused" Value="True">
<Setter Property="Background" Value="Transparent"/>
<Setter TargetName="MenuBorder" Property="BorderBrush" Value="#FFED6A2B" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

Change this line
<Setter Property="Background" Value="Red"/>
to
<Setter Property="Background" Value="Transparent"/>

Use this in C# code
Button btn = new Button() {BorderBrush=System.Windows.Media.Brushes.Transparent,
BorderThickness = new Thickness(0)};
or
yourBtn.BorderBrush=System.Windows.Media.Brushes.Transparent;
yourBtn.BorderThickness =new Thickness(0);

ResourceDictionary Style Triggers not working

from the following Trigger only the Foreground Setter is working. I do not understand why.
<Style TargetType="{x:Type Button}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Red"/>
<Setter Property="BorderBrush" Value="Red"/>
<Setter Property="Foreground" Value="Red"/>
</Trigger>
Thanks for any help.

The reason this doesn't work is because the default Button template uses a ButtonChrome that draws the border and background and handles states like mouseover and disabled depending on the Windows theme (e.g. Windows XP style, Windows 7 style).
In order to allow your triggers to be applied, you will need to define a custom Button template that uses standard stylable WPF elements, like Border, instead of ButtonChrome. Here's a bare-bones working example:
<Button Content="button">
<Button.Style>
<Style TargetType="Button">
<Setter Property="BorderThickness" Value="3" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border Background="{TemplateBinding Property=Background}"
BorderBrush="{TemplateBinding Property=BorderBrush}"
BorderThickness="{TemplateBinding Property=BorderThickness}">
<ContentPresenter />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="Red" />
<Setter Property="BorderBrush" Value="Green" />
<Setter Property="Foreground" Value="Blue" />
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>

Button in WPF has a default control template. The correct way to override the Button's default behavior is by overriding default control template. This can be done with something similar to below:
<Button Width="100" Height="50" Content="Click Me!">
<Button.Template>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="bdr_main" CornerRadius="20" Margin="4" BorderThickness="1" BorderBrush="Black" Background="LightGray">
<ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" Margin="8,6,8,6" ContentSource="Content" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter TargetName="bdr_main" Property="Background" Value="LightGreen"/>
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter TargetName="bdr_main" Property="Background" Value="Red"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Button.Template>
Found # http://harishasanblog.blogspot.com/2011/02/ismouseover-trigger-not-working-in-wpf.html
Hope it helps!

Try using the trigger on the controltemplate.
<ResourceDictionary>
<Style x:Key="TestButton" TargetType="Button">
<Setter Property="Height" Value="30" />
<Setter Property="Width" Value="30" />
<Setter Property="Background" Value="Transparent" />
<Setter Property="Foreground" Value="Green" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Foreground" Value="Purple" />
</Trigger>
</ControlTemplate.Triggers>
<Grid>
<Rectangle Fill="{TemplateBinding Foreground}" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>

Disable style of one text box among the 10 in WPF application

I have use 10 TextBox in my application and in that same application i have defined the style in App.xaml It applies for all the text boxes in my application . how to disable the style applying for a single TextBox.
Can any one help me out in this.
I used the below code to set the style
<Style TargetType="{x:Type TextBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<Border Background="White"
x:Name="Bd" BorderBrush="#FF50729f" CornerRadius="3"
BorderThickness="1"
>
<ScrollViewer x:Name="PART_ContentHost"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" TargetName="Bd" Value="#FFe0dfe3"/>
<Setter Property="BorderBrush" TargetName="Bd" Value="#FF9da3ab"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="Validation.ErrorTemplate">
<Setter.Value>
<ControlTemplate>
<Border BorderBrush="#FFd22c2c" BorderThickness="1"
Background="#FFfce8e8" CornerRadius="3" >
<AdornedElementPlaceholder></AdornedElementPlaceholder>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Background" Value="#FFe0dfe3"/>
<Setter Property="BorderBrush" Value="#FF9da3ab"/>
</Trigger>
<Trigger Property="Validation.HasError" Value="true">
<Setter Property="ToolTip"
Value="{Binding RelativeSource={RelativeSource Self},
Path=(Validation.Errors)[0].ErrorContent}"/>
</Trigger>
</Style.Triggers>
</Style>

if you just want the default style then
<TextBox Style="{x:Null}"/>
otherwise Cédric Bignon's answer with target type defined (like below) will do the job.
No property will be inherited by your application TextBoxStyle
<TextBox>
<TextBox.Style>
<Style TargetType="{x:Type TextBox}">
<!-- your setters-->
</Style>
</TextBox.Style>
</TextBox>
if you want to slightly change the default application style
then use the following tecqnique where in your style you can
redefine properties you want to be different from the default
or define additional ones
<TextBox>
<TextBox.Style>
<Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}">
<!-- your setters-->
</Style>
</TextBox.Style>
</TextBox>

Just use an empty style:
<TextBox>
<TextBox.Style>
<Style>
</Style>
</TextBox.Style>
</TextBox>