wpf - WPF StackPanel 的拉伸

Question

我正在玩 WPF，我正在尝试创建一个ImageButton控件。我创建了一个UserControl如下：

<UserControl
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
         mc:Ignorable="d" 
         x:Class="WpfPractise.Controls.ImageButton"
         Height="auto" Width="auto" x:Name="ImageButtonControl">
<Button>
    <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
        <Image Source="{Binding Image, ElementName=ImageButtonControl}"
               Width="16" Height="16"
           Margin="5,0,0,0" VerticalAlignment="Center"/>
        <TextBlock Text="{Binding Text, ElementName=ImageButtonControl}"
           Margin="5,0,0,0" VerticalAlignment="Center"/>
    </StackPanel>
</Button>

这工作正常，除了 StackPanel 不会拉伸以填充宽度或高度！我已经在它的位置尝试了一个网格，但无济于事。有什么想法我哪里出错了吗？

例子：

Answer 1

如果要将Button内容左对齐，则必须设置HorizontalContentAlignment按钮的

   <Button HorizontalContentAlignment="Left" VerticalContentAlignment="Center">
        <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
            <Image Source="{Binding Image, ElementName=ImageButtonControl}"
           Width="16" Height="16"
       Margin="5,0,0,0" VerticalAlignment="Center"/>
            <TextBlock Text="{Binding Text, ElementName=ImageButtonControl}"
       Margin="5,0,0,0" VerticalAlignment="Center"/>
        </StackPanel>
    </Button>