如何在 WPF 中调整 Canvas 的大小？
我正在编写一个 WPF 应用程序，其中有一个 Canvas 。该画布将在运行时自定义渲染。这有点像游戏，需要以像素为单位来衡量。我需要能够将我的 Canvas 设置为 478x478 像素（客户端矩形大小）。我不希望在我的 Canvas 上进行任何缩放或其他与分辨率无关的步骤。
我不确定这在 WPF 中是否可行，因为它的本质是与分辨率无关。我的问题：
- 如何在运行时调整
Canvas的大小（要调用的函数？） - 当我调整
Canvas的大小时，可渲染区域（客户端矩形）会是这样吗？尺寸？如果没有，我如何调整它的大小以确保客户端矩形具有特定的宽度/高度？ - 是否可以以像素为单位设置
Canvas的宽度/高度？ WPF 与分辨率无关的方面如何干扰我想要做的事情？ - 当我调整
Canvas的大小时，其他控件是否会像 WPF 设计器中的设计那样适当调整大小？
提前致谢。
I'm writing a WPF app that has a Canvas in it. This canvas will be custom rendered at runtime. It's sort of like a game in that it needs to be measured in pixels. I need to be able to set my Canvas to 478x478 pixels (client rectangle size). I don't want any scaling or other resolution-independent steps to take place on my Canvas.
I'm not sure if this is possible in WPF, since its nature is to be resolution independent. My questions:
- How do I resize my
Canvasat runtime (function to call?) - When I resize my
Canvas, is the renderable area (the client rectangle) going to be that size? If not, how can I resize it to make sure the client rectangle is a specific width/height? - Is it possible to set the width/height of the
Canvasin Pixels? How does the resolution-independent aspect of WPF interfere with what I'm trying to do? - When I resize my
Canvas, will other controls resize appropriately as they have been designed to do in the WPF designer?
Thanks in advance.
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（3）
位于画布中的任何元素都不会根据画布的大小调整大小或重新定位。所以我认为设置画布的大小没有任何优势。也许您应该只设置窗口的固定大小。
否则，只需设置 Canvas.Width、Height 和 ClipToBounds=True，您就拥有一个固定大小的画布，可以使用 X/Y 坐标定位其子元素。
另外，您应该确保在画布上设置 SnapsToDevicePixels=True ，以便子元素具有清晰的像素对齐边界。
Any elements positioned in a canvas will not resize or reposition based upon the size of the canvas. So I don't think there's any advantage to setting the size of the canvas. Maybe you should just set a fixed size of the window instead.
Otherwise, just set the Canvas.Width, Height, and ClipToBounds=True and you have a fixed sized canvas that positions its child elements with X/Y coordinates.
Also you should be sure to set SnapsToDevicePixels=True on the canvas so that child elements will have crisp pixel-aligned bounds.
调整大小是蛋糕：
这设置了大小，您可以渲染到此之外的坐标，但它将被剪裁。您可以将画布包裹在滚动条内，以允许用户查看画布高度/宽度之外的内容。
至于你的其余问题，我想你可以看到这个SO问题答案
resizing is cake:
this sets the size, you CAN render to coordinates outside of this, but it will be clipped. You can wrap your canvas inside a scroller to allow the user to see what is outside the height/width of the canvas.
as for the rest of your questions, i think you can see this SO question for your answers
2020 年更新：在 WPF .NET CORE 上：如果
Canvas是Viewbox的子级，则内容会自动缩放到Viewbox高度，并且宽度。Update 2020: on WPF .NET CORE: If the
Canvasis a child of aViewbox, the content is automatically scaled to theViewboxheight and width.