当用户更改对话框的大小时，如何设置wpf文本框以自动调整大小？

Question

当用户更改对话框的大小时，如何设置wpf文本框以自动调整大小？

<Window x:Class="MemoPad.Window1" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Background="LightGray" 
    Title="Window1" Height="350" Width="700" > 
<StackPanel Orientation="Vertical"> 
    <Menu DockPanel.Dock ="Right"> 
     <MenuItem Header="Find" x:Name="gMNuFind" /> 
    </Menu> 
    <Button Content=" Find " 
      Margin="5,10,5,5" 
      x:Name="gBuFind" 
      /> 
    <TextBox Margin="0,0,0,0" 
      HorizontalAlignment="Left" 
      VerticalAlignment="Top" 
      MinHeight="270" MinWidth="690"     
      x:Name = "gTBxInfo" 
      TextWrapping="Wrap" 
      AcceptsReturn="True" 
      ScrollViewer.VerticalScrollBarVisibility="Auto" 
      /> 
</StackPanel> 

Answer 1

或更改的StackPanel网格

<Window x:Class="WpfApplication1.MainWindow" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Background="LightGray" 
    Title="Window1" Height="350" Width="700" > 
    <Grid> 
     <Grid.RowDefinitions> 
      <RowDefinition Height="auto" /> 
      <RowDefinition Height="auto" /> 
      <RowDefinition Height="1*" /> 
     </Grid.RowDefinitions> 
     <Menu> 
      <MenuItem Header="Find" x:Name="gMNuFind" /> 
     </Menu> 
     <Button Grid.Row="1" Content=" Find " 
      Margin="5,10,5,5" 
      x:Name="gBuFind" 
      /> 
     <TextBox Grid.Row="2" Margin="0,0,0,0" 
      HorizontalAlignment="Stretch" 
      VerticalAlignment="Stretch" 
      MinHeight="270" MinWidth="690"     
      x:Name = "gTBxInfo" 
      TextWrapping="Wrap" 
      AcceptsReturn="True" 
      ScrollViewer.VerticalScrollBarVisibility="Auto" 
      /> 
    </Grid> 
</Window> 

Answer 2

从TextBox删除MinHeight和MinWidth，并改变HorizonalAlignment到Stretch

<TextBox Margin="0,0,0,0" 
    HorizontalAlignment="Stretch" 
    VerticalAlignment="Top"    
    x:Name = "gTBxInfo" 
    TextWrapping="Wrap" 
    AcceptsReturn="True" 
    ScrollViewer.VerticalScrollBarVisibility="Auto" /> 

编辑：

如果你想调整在两个方向上TextBox（浩横向和纵向），您将不得不使用除StackPanel以外的其他容器，以便TextBox尺寸是独立的。

事情是这样的：

<Grid> 
    <Grid.RowDefinitions> 
     <RowDefinition Height="Auto" /> 
     <RowDefinition Height="50"/> 
     <RowDefinition Height="*"/> 
    </Grid.RowDefinitions> 
    <Menu> 
     <MenuItem Header="Find" x:Name="gMNuFind" Grid.Row="0"/> 
    </Menu> 
    <Button x:Name="gBuFind" 
      Content=" Find " 
      Margin="5,10,5,5"  
      Grid.Row="1"/> 
    <TextBox x:Name = "gTBxInfo" 
      Margin="0,0,0,0" 
      HorizontalAlignment="Stretch" 
      VerticalAlignment="Stretch"    
      TextWrapping="Wrap" 
      AcceptsReturn="True" 
      ScrollViewer.VerticalScrollBarVisibility="Auto" 
      Grid.Row="2"/> 
</Grid>