using System.Drawing;using System.Windows.Forms;public class CustomToolStripColorTable : ProfessionalColorTable{  /// <summary>  /// 主菜單項被點擊后，展開的下拉菜單面板的邊框  /// </summary>  public override Color MenuBorder  {    get    {      return Color.FromArgb(37, 37, 37);    }  }  /// <summary>  /// 鼠標移動到菜單項（主菜單及下拉菜單）時，下拉菜單項的邊框  /// </summary>  public override Color MenuItemBorder  {    get    {      return Color.Transparent;    }  }  #region 頂級菜單被選中背景顏色  public override Color MenuItemSelectedGradientBegin  {    get    {      return Color.FromArgb(37, 37, 37);    }  }  public override Color MenuItemSelectedGradientEnd  {    get    {      return Color.FromArgb(37, 37, 37);    }  }  #endregion  #region 頂級菜單被按下是，菜單項背景色  public override Color MenuItemPressedGradientBegin  {    get    {      return Color.Black;    }  }  public override Color MenuItemPressedGradientMiddle  {    get    {      return Color.FromArgb(37, 37, 37);    }  }  public override Color MenuItemPressedGradientEnd  {    get    {      return Color.Black;    }  }  #endregion  /// <summary>  /// 菜單項被選中時的顏色  /// </summary>  public override Color MenuItemSelected  {    get    {      return Color.FromArgb(37, 37, 37);    }  }  #region 下拉菜單面板背景設置（不包括下拉菜單項）  //下拉菜單面板背景一共分為2個部分，左邊為圖像區域，右側為文本區域，需要分別設置  //ToolStripDropDownBackground設置文本部分的背景色  public override Color ToolStripDropDownBackground  {    get    {      return Color.Black;    }  }  //以ImageMarginGradient開頭的3個設置的是圖像部分的背景色，begin->end是從左到右的順序  public override Color ImageMarginGradientBegin  {    get    {      return Color.Black;    }  }  public override Color ImageMarginGradientMiddle  {    get    {      return Color.Black;    }  }  public override Color ImageMarginGradientEnd  {    get    {      return Color.Black;    }  }  #endregion}

contextMenuStrip1.RenderMode = ToolStripRenderMode.Professional;contextMenuStrip1.Renderer = new ToolStripProfessionalRenderer(new CustomToolStripColorTable());

<Style x:Key="DataGridColumnsHeaderContextMenuStyle" TargetType="{x:Type ContextMenu}">        <Setter Property="SnapsToDevicePixels" Value="True"/>        <Setter Property="Grid.IsSharedSizeScope" Value="true"/>        <Setter Property="HasDropShadow" Value="True"/>        <Setter Property="Template">          <Setter.Value>            <ControlTemplate TargetType="{x:Type ContextMenu}">              <Border Uid="Border_93">                <Border.Style>                  <Style TargetType="{x:Type Border}">                    <Setter Property="Tag" Value="{DynamicResource {x:Static SystemParameters.DropShadowKey}}"/>                    <Style.Triggers>                      <DataTrigger Binding="{Binding Tag, RelativeSource={RelativeSource Self}}" Value="True">                        <Setter Property="Effect">                          <Setter.Value>                            <DropShadowEffect BlurRadius="4" Opacity="0.8" ShadowDepth="1"/>                          </Setter.Value>                        </Setter>                      </DataTrigger>                    </Style.Triggers>                  </Style>                </Border.Style>                <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Uid="Border_50">                  <ScrollViewer CanContentScroll="True" Uid="ScrollViewer_9"              Style="{DynamicResource {ComponentResourceKey ResourceId=MenuScrollViewer, TypeInTargetAssembly={x:Type FrameworkElement}}}">                    <ItemsPresenter KeyboardNavigation.DirectionalNavigation="Cycle" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" Uid="ItemsPresenter_5"/>                  </ScrollViewer>                </Border>              </Border>            </ControlTemplate>          </Setter.Value>        </Setter>      </Style>

<Style x:Key="MenuItemStyle1" TargetType="{x:Type MenuItem}"> <Setter Property="Template" Value="{DynamicResource MenuItemControlTemplate1}"/> <Setter Property="Margin" Value="0"></Setter> <Setter Property="Padding" Value="0"></Setter> </Style> <ControlTemplate x:Key="MenuItemControlTemplate1" TargetType="{x:Type MenuItem}"> <Grid x:Name="grid" SnapsToDevicePixels="True" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" > <ContentPresenter ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Grid.Column="0" ContentStringFormat="{TemplateBinding HeaderStringFormat}" ContentSource="Header" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsHighlighted" Value="True"> <Setter Property="Background" TargetName="grid" Value="{DynamicResource Brush_PA_CSW_ListBoxItemDefaultHighlight}"/> </Trigger> <Trigger Property="IsEnabled" Value="False"> <Setter Property="Foreground" Value="#FF9A9A9A"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate>3. contextMenu使用上述style <ContextMenu x:Key="DataGridColumnsHeaderContextMenu"     ItemTemplate="{DynamicResource HeaderConfigItemTemplate}"     ItemContainerStyle="{DynamicResource MenuItemStyle1}"        Style="{DynamicResource DataGridColumnsHeaderContextMenuStyle}"/>