ColumnDefinition MinWidth无法正常工作 [英] ColumnDefinition MinWidth doesn't work correctly

问题描述

我在WPF（xaml）中使用Grid，在ColumnDefinition中使用MinWidth属性时我有一些奇怪的效果。例如，当我使用9 ColumnDefinition并且每个ColumnDefinition具有'Width =*'属性并且其中一个中间列也具有MinWidth属性时，则其他列的大小是错误的。

好吧，很难描述，但是这个xaml代码很好地说明了它：

 < Grid Width = 500 > 
< Grid.ColumnDefinitions> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*MinWidth =250/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< /Grid.ColumnDefinitions> 
< Border Grid.Column =0Background =Green/> 
< Border Grid.Column =1Background =Blue/> 
< Border Grid.Column =2Background =Red/> 
< Border Grid.Column =3Background =Yellow/> 
< Border Grid.Column =4Background =Purple/> 
< Border Grid.Column =5Background =Orange/> 
< Border Grid.Column =6Background =Azure/> 
< Border Grid.Column =7Background =LightBlue/> 
< Border Grid.Column =9Background =LightGreen/> 
< / Grid> 
  

运行这个xaml代码时，您会看到前3列的宽度与最后5列。我希望所有这些都具有相同的宽度。

有谁知道这是否是一个错误。如果有办法做到这一点。

预先致谢。

div>

我明白你的意思 - 黄色左边的列比右边的列宽，即使它们的比例相同。

我会说这是一个错误，尤其是当您认为以下解决方法有效时：

 < Grid.ColumnDefinitions> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =1.0000001 *MinWidth =250/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< ColumnDefinition Width =*/> 
< /Grid.ColumnDefinitions> 
  

我猜这个错误与列按宽度分组的方式有关...... p>

I'm using a Grid in WPF (xaml) and I'm have some strange effect when using the MinWidth property in a ColumnDefinition. For example, when I use 9 ColumnDefinition and every ColumnDefinition has the 'Width="*"' property and one of the middle columns also has a MinWidth property then the size of the other columns is wrong.

Well, it's hard to discribe but this xaml code illustrates it nicely:

  <Grid Width="500">  
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="*" MinWidth="250"/>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="*"/>
    </Grid.ColumnDefinitions>
    <Border Grid.Column="0" Background="Green"/>
    <Border Grid.Column="1" Background="Blue"/>
    <Border Grid.Column="2" Background="Red"/>
    <Border Grid.Column="3" Background="Yellow"/>
    <Border Grid.Column="4" Background="Purple"/>
    <Border Grid.Column="5" Background="Orange"/>
    <Border Grid.Column="6" Background="Azure"/>
    <Border Grid.Column="7" Background="LightBlue"/>
    <Border Grid.Column="9" Background="LightGreen"/>
  </Grid>

When you run this xaml code you'll see that the first 3 columns have a different width than the last 5 columns. Where I expected all of those to have the same width.

Does anyone know if this is a bug. And if there is a way to do this correctly.

Thanks in advance.

解决方案

I see what you mean - the columns to the left of the yellow one are wider than the columns to the right, even though they are meant to be given the same proportions.

I would say it's a bug, especially when you consider that the following workaround works:

<Grid.ColumnDefinitions>
    <ColumnDefinition Width="*"/>
    <ColumnDefinition Width="*"/>
    <ColumnDefinition Width="*"/>
    <ColumnDefinition Width="1.0000001*" MinWidth="250"/>
    <ColumnDefinition Width="*"/>
    <ColumnDefinition Width="*"/>
    <ColumnDefinition Width="*"/>
    <ColumnDefinition Width="*"/>
    <ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>

I would guess that this bug is related to how the columns are grouped by width...

这篇关于ColumnDefinition MinWidth无法正常工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！