thickness

Why the border thickness of the Button doesn't change? If I change the border thickness to 1 or 100, it doesn't matters. It's the same. I would like to change it using Style , not Custom Template . <Window x:Class="GUI.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"> <Window.Resources> <Style x:Key="newYellowButton" TargetType="{x:Type Button}"> <Setter Property="Width" Value="100"/> <Setter Property="Height" Value="100"/> <Setter Property="Background"> <Setter.Value

I just thought I already know how WPF and XAML Syntax works.... wrooong. I got the message: 'WithEvents' variables can only be typed as classes, interfaces or type parameters with class constraints. Please, do you know why this syntax is wrong? I need to use the single value as double. It works later with an storyboard in codebehind. Regards I just want to animate the Red rectangle with a storyboard in location and size. Perhaps XAML is the right solution anyway? To animate thickness, use a Storyboard like this (from msdn example): <BeginStoryboard> <Storyboard> <!-- BorderThickness animates