有什么方法可以使用鼠标拖动/调整画布大小吗？

发布于 2024-10-19 19:10:22 字数 355 浏览 1 评论 0原文

我使用的画布中嵌入了扩展器，这样当扩展器展开时，它将覆盖下面的控件。

        <Canvas Grid.Row="0" Panel.ZIndex="99">
            <Border Width="450" BorderThickness="1">
                <Expander etc />
            </Border>
        </Canvas>
        <OtherControls Grid.Row="1"/> etc

有没有办法让用户拖动画布的大小，而不是设置画布的大小？

原文

I am using a canvas with an Expander embedded within it, so that when the expander is expanded, it will overlay the controls below.

        <Canvas Grid.Row="0" Panel.ZIndex="99">
            <Border Width="450" BorderThickness="1">
                <Expander etc />
            </Border>
        </Canvas>
        <OtherControls Grid.Row="1"/> etc

Instead of setting the size of the canvas, is there a way to allow the user to drag size it instead?

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烏雲後面有陽光 2024-10-26 19:10:22

这里有一个想法：将所有内容放入网格中。让网格自动调整大小，将画布放入网格中（确保它占据整个网格），以便它遵循父级的大小：

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition/>
        <RowDefinition/>
    </Grid.RowDefinitions>

    <Canvas Background="Transparent" Grid.RowSpan="2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>

    <Border Width="450" BorderThickness="1">
            <Expander etc />
    </Border>

    <OtherControls Grid.Row="1"/>
</Grid>

不确定这可能有多相关，但请查看这篇文章。也许它会给你一些想法（我四年前写的，太长了，记不清具体细节，但代码可以编译并运行）：

http://denismorozov.blogspot.com/2008/01/how-to-resize-wpf-controls-at-runtime.html

here's a thought: Put everything in the grid. Let the grid resize itself automatically, put canvas in the grid (make sure it takes up the whole grid) so that it will follow the parent's size:

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition/>
        <RowDefinition/>
    </Grid.RowDefinitions>

    <Canvas Background="Transparent" Grid.RowSpan="2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>

    <Border Width="450" BorderThickness="1">
            <Expander etc />
    </Border>

    <OtherControls Grid.Row="1"/>
</Grid>

not sure how relevant this might be, but check out this post. Maybe it'll give you some ideas (I wrote that 4 years ago, way too long to remember specifics, but code compiles and runs):

http://denismorozov.blogspot.com/2008/01/how-to-resize-wpf-controls-at-runtime.html

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