WPF Template Binding Path.Fill - wpf

Question

I have the following sytles:
<Style x:Key="WindowButtonTriggers" TargetType="Button">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{StaticResource MainColorBrush}" />
</Trigger>
<Trigger Property="IsPressed" Value="True">
<Setter Property="Background" Value="{StaticResource MainColorBrush}" />
</Trigger>
</Style.Triggers>
</Style>
<Style x:Key="MinimizeButton" TargetType="Button" BasedOn="{StaticResource WindowButtonTriggers}">
<Setter Property="Background" Value="{StaticResource WhiteBrush}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Canvas x:Name="appbar_minus" Width="48" Height="48" Clip="F1 M 0,0L 48,0L 48,48L 0,48L 0,0" Background="Transparent" UseLayoutRounding="False">
<Rectangle Width="24" Height="4" Canvas.Left="12" Canvas.Top="24" Stretch="Fill" Fill="{TemplateBinding Background}" />
</Canvas>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="CloseButton" TargetType="Button" BasedOn="{StaticResource WindowButtonTriggers}">
<Setter Property="Background" Value="{StaticResource WhiteBrush}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Canvas x:Name="appbar_close" Width="48" Height="48" Clip="F1 M 0,0L 48,0L 48,48L 0,48L 0,0" Background="Transparent">
<Path Width="20" Height="20" Canvas.Left="14" Canvas.Top="14" Stretch="Fill" Fill="{TemplateBinding Background}" Data="F1 M 17,14L 24,21L 30.9999,14.0001L 33.9999,17.0001L 27,24L 33.9999,31L 31,34L 24,27L 17,34L 14,31L 21,24L 14,17L 17,14 Z "/>
</Canvas>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
When I create a button with the style "MinimizeButton" it works fine (when the mouse is over the button color changes) but when I create a button with the style "CloseButton" it doesn't work and I don't understand why since they are almost the same style.
Any help is greatly appreciated
Edit
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="100"/>
</Grid.ColumnDefinitions>
<my:Menu Grid.Column="0" BorderThickness="0,0,1,0" BorderBrush="#FF777777"/>
<WrapPanel Grid.Column="1" VerticalAlignment="Center" Margin="4,0,0,0">
<Button Style="{StaticResource MinimizeButton}" />
<Button Style="{StaticResource CloseButton}" Command="Close" />
</WrapPanel>
</Grid>

Answer 1

The reason that it is not working is because the Close command and CanExcecute is not defined which then sets the IsEnabled property on the button to false. MSDN states that
There is not necessarily an implementation for the command on any given object; in many cases the implementation for the command is the responsibility of the application writer.
Here is a good article on Code Project to get you started on working with WPF Commands.