WPF中的CAnvas的OnRender方法 [英] OnRender method for a CAnvas in WPF

问题描述

你好，
可以为XAML画布编写onRender方法吗?

我想在画布上绘制一些形状和图像.
我已经从Xaml中获取了一个画布，现在该如何为该画布编写OnRender方法.

还是我们必须创建一个继承自canvas的自定义类，然后才可以编写onRender方法?

请帮我


谢谢.

Hello,
can we write onRender method for a XAML canvas?

i want to draw some shapes, images on a canvas.
i have taken a canvas from Xaml, Now how can i write OnRender method for the canvas.

or we have to create a custom class inheriting from canvas then only we can write onRender method?

Plz help me out


Thanks.

推荐答案

不是WPF的专家，但是您通常会从Canvas派生一个类并重写OnRender方法.那只是基本的面向对象，因为它不再只是画布，而是具有某些额外功能的画布.

Not an expert in WPF, but you''d normally derive a class from Canvas and override the OnRender method. That''s just basic OO, because its no longer just a canvas, it''s a canvas with some extra functionality.

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