3つの等しいサイズでスタックパネルを分割する

Question

左のグループボックス（左にドッキング）、中央のイメージ、右のグループボックス（右にドッキング）で行を作成しようとしています。

私は私が間違ってやっているかを把握カントが、それは次のようにコンパイル

：StackPanelのは、グリッド内めちゃめちゃ

<Grid> 
    <Grid.ColumnDefinitions> 
     <ColumnDefinition Width="*" /> 
     <ColumnDefinition Width="*" /> 
     <ColumnDefinition Width="*" /> 
    </Grid.ColumnDefinitions> 

    <StackPanel Orientation="Horizontal" DockPanel.Dock="Top" > 
    <GroupBox x:Name="RightGroupBox" Grid.Column="1" BorderBrush="#515151" BorderThickness="1" Header="Right Tools" FontSize="18" Foreground="White" Width="369" Margin="0,10,0,0"> 
     <StackPanel x:Name="ToolsStackRight" Orientation="Vertical" Margin="0,10,-2,0"> 
      <amob:AmobComboBox x:Name="cmbTool10" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool5_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool9" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool4_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool8" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool3_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool7" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool2_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool6" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool1_SelectionChanged"/> 
     </StackPanel> 
    </GroupBox> 

    <Image HorizontalAlignment="Center" Grid.Column="2" Name="ToolsImageLeft" Height="256" Width="294" Source="/AMOB_CNC;component/Resources/5tolls_3d.png" RenderTransformOrigin="0.5,0.5" Margin="40,0,0,0"></Image> 

    <GroupBox x:Name="LeftGroupBox" Grid.Column="3" BorderBrush="#515151" BorderThickness="1" Header="Right Tools" FontSize="18" Foreground="White" Width="369" Margin="0,10,0,0"> 
     <StackPanel x:Name="ToolStackLeft" Orientation="Vertical" Margin="0,10,-2,0" > 
      <amob:AmobComboBox x:Name="cmbTool5" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool5_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool4" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool4_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool3" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool3_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool2" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool2_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool1" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool1_SelectionChanged"/> 
     </StackPanel> 
    </GroupBox> 
</StackPanel> 
</Grid> 

Answer 1

私を助けてください..私は成功事例のなしColumnDefinitionsを使用しようとしたMy WPF Program

レイアウト。それを削除し、（番号は0から始まる）の要素にGrid.Column番号を修正

<Grid> 
    <Grid.ColumnDefinitions> 
     <ColumnDefinition Width="*" /> 
     <ColumnDefinition Width="*" /> 
     <ColumnDefinition Width="*" /> 
    </Grid.ColumnDefinitions> 

    <GroupBox x:Name="RightGroupBox" Grid.Column="0" BorderBrush="#515151" BorderThickness="1" Header="Right Tools" FontSize="18" Foreground="White" Width="369" Margin="0,10,0,0"> 
     <StackPanel x:Name="ToolsStackRight" Orientation="Vertical" Margin="0,10,-2,0"> 
      <amob:AmobComboBox x:Name="cmbTool10" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool5_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool9" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool4_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool8" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool3_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool7" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool2_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool6" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool1_SelectionChanged"/> 
     </StackPanel> 
    </GroupBox> 

    <Image HorizontalAlignment="Center" Grid.Column="1" Name="ToolsImageLeft" Height="256" Width="294" Source="/AMOB_CNC;component/Resources/5tolls_3d.png" RenderTransformOrigin="0.5,0.5" Margin="40,0,0,0"></Image> 

    <GroupBox x:Name="LeftGroupBox" Grid.Column="2" BorderBrush="#515151" BorderThickness="1" Header="Right Tools" FontSize="18" Foreground="White" Width="369" Margin="0,10,0,0"> 
     <StackPanel x:Name="ToolStackLeft" Orientation="Vertical" Margin="0,10,-2,0" > 
      <amob:AmobComboBox x:Name="cmbTool5" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool5_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool4" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool4_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool3" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool3_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool2" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool2_SelectionChanged"/> 
      <amob:AmobComboBox x:Name="cmbTool1" Width="300" Margin="0,0,35,20" SelectionChanged="cmbTool1_SelectionChanged"/> 
     </StackPanel> 
    </GroupBox> 
</Grid>