WPF：将组件的高度绑定到另一个组件的高度 [英] WPF: Binding the height of a component to another's

问题描述

我在窗口中有一个 Grid ，其中包含一个 RadioButton 和一个 TextBox 和 Button ，分别位于第0、1、2列中。

I have, in a window, a Grid that contains a RadioButton, a TextBox and a Button, each in column 0, 1, 2, respectively. They all have their heights set to auto.

然后，在窗口的另一部分，我还有另一个 Grid 带有 Label ， TextBox 和 Button 列0、1和2。高度也设置为自动。

Then, in another part of the window, I have another Grid with a Label, a TextBox and a Button, in columns 0, 1, and 2. Heights are also set to auto.

我遇到的问题是第一个网格的高度小于第二个网格的高度。我猜是因为Label强迫第二个更高。如何使第一个网格与第二个网格一样高？我尝试这样做：

The problem I have is that the first grid's height is smaller than the second's. I guess it's because Label is forcing the second one to be taller. How can I make it so that the first grid is as tall as the second? I tried doing this:

在第二个网格中为文本框命名SomeName。

在< Grid.ColumnDeclarations>中。 在第一个网格中，我将高度从自动更改为 {Binding ElementName = SomeName，Path = Height}。

Name the textbox in the second grid SomeName.
In the <Grid.ColumnDeclarations> of the first Grid, I changed Height from "auto" to "{Binding ElementName=SomeName, Path=Height}".

但这并没有满足我的要求。大小是一样的。我猜Binding基本上是自动的，然后扔到那里，结果还是一样。

But that didn't do what I wanted. The size was the same. I guess the Binding is basically getting "auto" and throwing it there, which ends up being the same thing.

此外，我正在寻找一种解决方案，

Also, I'm looking for a solution that doesn't involve setting the heights to a fixed value.

推荐答案

将两个网格放在共享大小范围，并使用 SharedSizeGroup 可以将行高锁定在一起：

Put the two grids in a shared size scope, and use SharedSizeGroup to lock the row heights together:

<SomeContainer Grid.IsSharedSizeScope="True">  <!-- Could be the Window or some more nearby Panel -->
  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition SharedSizeGroup="LabelAndRadioButtonGroup" />
    </Grid.RowDefinitions>
    <Label Grid.Row="0" />
  </Grid>
  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition SharedSizeGroup="LabelAndRadioButtonGroup" />
    </Grid.RowDefinitions>
    <RadioButton Grid.Row="0" />
  </Grid>
</SomeContainer>

另请参见如何：在MSDN中在网格之间共享大小设置属性。

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