I want to change my TextBox Background color while my control IsEnable = false:
<Style TargetType="{x:Type TextBox}">
<Style.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" Value="#00ffffff"/>
</Trigger>
</Style.Triggers>
</Style>
But it seems that this not effect at all and now my Backgroung color is transparent and my Watermark (i am using MahApps) is missing.