在WPF programmaticaly透明边框 [英] Transparent border in WPF programmaticaly

问题描述

它是微不足道的生成边界（用于轨迹球事件）透明了在XAML文件中视：

Its is trivial to generate a border (to use for Trackball events) transparent over the viewport in the XAML file:

<Border Name="myElement" Background="Transparent" />

但我怎么做它在的.cs？

But how do I do it in the .cs?

Border border = new Border();
**border.Background = (VisualBrush)Colors.Transparent;**
grid.Children.Add(viewport);
grid.Children.Add(border);

这不，当然工作...

This does not work of course...

谢谢，

佩德罗Dusso

推荐答案

这是因为你不能只是投出彩是一个刷机。使用透明刷代替

This is because you can't just cast a Color to be a Brush. use the Transparent brush instead

border.Background = Brushes.Transparent;

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