完美的中心在WPF帆布 [英] Perfect Center on WPF Canvas

问题描述

由于画布需要一个Top / Left放置，如果你想要中心的东西，正在添加一个网格在正确的Canvas.Top与Horizo​​ntalAlignment =中心的最好的方法，或有一个更好的方法？

Since the canvas requires a Top/Left for placement, if you want to center something, is adding a grid at the proper Canvas.Top with HorizontalAlignment="Center" the best way to do it, or is there a better way?

这个剪辑是一个150X300的画布，有一些内容集中在网格....

This snip is a 150X300 canvas, with some content centered in a grid ....

<Canvas Width="150" Height="300">
    <Grid Canvas.Top="75" Width="106" HorizontalAlignment="Center">
        {whatever you want centered}
    </Grid>
</Canvas>

推荐答案

Guy的解决方案可行，但您可能需要调整z

Guy's solution works, but you may have to tweak z-order and visibility if you're juggling hit testing.

另一个替代方法是在Canvas（如你在XAML中指定的）中使用Grid，使用Height /宽度设置为（或绑定到）画布的高度/宽度。然后将Horizo​​ntalAlignment / VerticalAlignment设置为网格内容的中心。

Another alternative is having the Grid inside the Canvas (as you've specified in your XAML) with the Height/Width set to (or bound to) the Height/Width of the Canvas. Then setting HorizontalAlignment/VerticalAlignment to Center for the contents of your Grid.

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