Recently, I had to create some transparent controls in WPF.
When you create a control such as a Button in WPF and you do not set any Background property, it has a default background
property. The default property of the control is inherited from the Windows Control set on your machine.
For example, the following code snippet creates a Button
control.
<Button Name="Button1" Height="30" Width="200"
BorderBrush="Black"
Content="Click Me!"/>
The Button control looks like this:
What if you want to set a Button control's background transparent?
You can set a control's background transparent by setting
the Background property to null, using the following code:
<Button Name="Button1" Height="30" Width="300" BorderBrush="Yellow" Background="{x:Null}"
/>
The new Button control looks like this: