WPF, dynamic Color Fill Rectangle - wpf

Question

I try to create a ControlTemplate for my Label like this :
<Style TargetType="{x:Type Label}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Label}">
<Grid x:Name="LayoutRoot" Background="White">
<Rectangle Height="30" HorizontalAlignment="Left" Margin="10"
Stroke="transparent"
VerticalAlignment="Top" Width="3"
Fill="#FF259FED" />
<ContentPresenter HorizontalAlignment="Left" Margin="17,0,0,0" RecognizesAccessKey="True"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
VerticalAlignment="Center"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="Foreground" Value="#7A7E81" />
<Setter Property="FontWeight" Value="Bold" />
</Style>
I want to fill color of rectangle when i create my control, like this for example :
<Label Content="Prénom" VerticalAlignment="Top" CouleurRectangle="#FF259FED" />
So, how can I change Property "Fill" in my controlTemplate to set dynamicly color of rectangle when i create control ?
thank's a lot.
Edit : this is the solution , i create a new class who inherit from Label like this :
Public Class LblTitreChamp
Inherits Label
Public Shared ReadOnly CouleurProperty As DependencyProperty =
DependencyProperty.Register("CouleurRectangle", GetType(SolidColorBrush), GetType(LblTitreChamp))
''' <summary>Propriété pour insérer une couleur au début du Label</summary>
Public Property CouleurRectangle As SolidColorBrush
Get
Return GetValue(CouleurProperty)
End Get
Set(ByVal value As SolidColorBrush)
SetValue(CouleurProperty, value)
End Set
End Property
End Class
then, in my COntrolTemplate :
<Style TargetType="{x:Type local:LblTitreChamp}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:LblTitreChamp}">
<Grid x:Name="LayoutRoot" Background="White">
<Rectangle Height="30" HorizontalAlignment="Left" Margin="10"
Stroke="transparent"
VerticalAlignment="Top" Width="3"
Fill="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Label}}, Path=CouleurRectangle}"/>
<ContentPresenter HorizontalAlignment="Left" Margin="17,0,0,0" RecognizesAccessKey="True"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
VerticalAlignment="Center"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="Foreground" Value="#7A7E81" />
<Setter Property="FontWeight" Value="Bold" />
</Style>
and finally, to creat a new label :
<my:LblTitreChamp Content="ID" VerticalAlignment="Top" CouleurRectangle="Black" />
thank's a lot for you :)

Answer 1

hi set Fill={TemplateBinding CouleurRectangle} .Hope this will help. And i Expect that you have created a custom Label class That inherit from Label and has DependencyProperty CouleurRectangle.

Answer 2

Since your label is not a CustomControl, then you cannot dynamically make a property on that so the best possible way is to use the background property of label
...
<Rectangle Height="30" ...
Fill="{TemplateBinding Background}" />
...
Else create a CustomControl inheriting the Label and make a new dependency property and also define a XAML template style for it.