c# - Silverlight：如何使用画笔制作点划线边框

Question

我想在silverlight中制作一个“dash dot dot”风格的画笔。我不能使用 Rectangle 因为我实际上想在 Path 元素（不是矩形图形）周围完成一个“虚线点”边框。有没有办法做到这一点？

谢谢，罗曼。

Answer 1

It sounds like you just need the StrokeDashArray property of the Path. For example,
StrokeDashArray="3 1 1 1 1 1" will give a dash dot dot pattern.

Translated to english it says:

Dash of 3 units,
gap  of 1 unit,
dash of 1 unit,
gap  of 1 unit, 
dash of 1 unit,
gap  of 1 unit.

I say units, because, per MSDN: "Each Double in the collection specifies the length of a dash or gap relative to the Thickness of the pen.".

A full path markup sample,

<Path Data="M120,141 C344,128 314,1 397,145 C480,289 619,392.00076 418,369.00067 C217,346.00061 131.99998,314.00018 134.99998,243.00008 C137.99998,171.99995 120,141 120,141 z" Fill="#FFF4F4F5" Margin="119.5,76.374,117.918,107.283" Stretch="Fill" Stroke="Black" UseLayoutRounding="False" StrokeDashArray="3 1 1 1 1 1"/>

MSDN link: http://msdn.microsoft.com/en-us/library/system.windows.shapes.shape.strokedasharray.aspx