डब्ल्यूपीएफ सी # - मेनू की पृष्ठभूमि के ब्रश को बदलें

Question

क्या किसी को पता है कि मेनू की पृष्ठभूमि के लिए ब्रश को कैसे बदला जाए? यह आसान लगता है, लेकिन मुझे ऐसा करने का कोई स्पष्ट तरीका नहीं दिख रहा है। आपको लगता है कि पृष्ठभूमि की संपत्ति इसे बदल देगी, लेकिन ऐसा नहीं है।

उदाहरण कोड::

<Window x:Class="WpfApplication1.Window1" 
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
Title="Window1" Height="300" Width="300"> 

<Window.Resources> 
    <SolidColorBrush x:Key="menuItemBrush" 
        Color="#FF505050" /> 
</Window.Resources> 

<Grid x:Name="mainGrid" 
     Background="#FF252525"> 

    <Menu x:Name="mainMenu" 
      Background="{DynamicResource menuItemBrush}" 
      Grid.ColumnSpan="2" 
      VerticalAlignment="Top"> 

     <MenuItem x:Name="fileMenu" 
        Background="{DynamicResource menuItemBrush}" 
        Foreground="White" 
        Header="File"> 

      <MenuItem x:Name="fileOpenMenuItem" 
         Background="{DynamicResource menuItemBrush}" 
         Foreground="White" 
         Header="Open..." /> 

      <MenuItem x:Name="fileSaveMenuItem" 
         Background="{DynamicResource menuItemBrush}" 
         Foreground="White" 
         Header="Save" /> 

      <MenuItem x:Name="fileSaveAsMenuItem" 
         Background="{DynamicResource menuItemBrush}" 
         Foreground="White" 
         Header="Save As..." /> 

      <Separator Style="{DynamicResource menuItemSeperator}" /> 

      <MenuItem x:Name="fileExitMenuItem" 
         Background="{DynamicResource menuItemBrush}" 
         Foreground="White" 
         Header="Exit" /> 
     </MenuItem> 
    </Menu> 
</Grid> 

Answer 1

मैं लेखन शैली के लिए kaxaml नामक एक उपकरण का उपयोग करने का सुझाव देना चाहता हूं। इसमें कई कोड स्निपेट, एक रंग पिकर और तुरंत देखने के लिए एक अच्छा तरीका है कि xaml कोड में क्या परिवर्तन होता है। आप जो करने की कोशिश कर रहे हैं उसके लिए यहां एक पूर्ण मेनू शैली है। अपनी जरूरतों के अनुसार बस शीर्ष पर ब्रश रंग बदलें।

<Page 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> 
    <Page.Resources> 

    <!--************************** 
    * STYLE: MenuItem 
    ************************** --> 
    <SolidColorBrush x:Key="HighlightedBackgroundBrush" Color="#FF797878" /> 
    <SolidColorBrush x:Key="MenuBackgroundBrush" Color="#FF505050" /> 
    <SolidColorBrush x:Key="NormalBorderBrush" Color="#FFFFFFFF" /> 
    <SolidColorBrush x:Key="SolidMenuFontBrush" Color="#FFFFFFFF" /> 
    <SolidColorBrush x:Key="HighlightedText" Color="#FFFFFFFF" /> 
    <Style x:Key="{x:Type Menu}" TargetType="{x:Type Menu}"> 
    <Setter Property="OverridesDefaultStyle" Value="True"/> 
    <Setter Property="SnapsToDevicePixels" Value="True"/> 
    <Setter Property="Height" Value="25"/> 
    <Setter Property="Foreground" Value="{StaticResource SolidMenuFontBrush}"/> 
    <Setter Property="Template"> 
     <Setter.Value> 
     <ControlTemplate TargetType="{x:Type Menu}"> 
      <Border 
      Background="{StaticResource MenuBackgroundBrush}" 
      BorderBrush="{StaticResource MenuBackgroundBrush}" 
      BorderThickness="1"> 
      <StackPanel ClipToBounds="True" Orientation="Horizontal" IsItemsHost="True"/> 
      </Border> 
     </ControlTemplate> 
     </Setter.Value> 
    </Setter> 
    </Style> 
    <Style x:Key="{x:Type MenuItem}" TargetType="{x:Type MenuItem}"> 
    <Setter Property="Template"> 
     <Setter.Value> 
     <ControlTemplate TargetType="{x:Type MenuItem}"> 
      <Border x:Name="Border" 
        Background="{TemplateBinding Background}" 
        BorderBrush="{TemplateBinding BorderBrush}" 
        BorderThickness="1"> 
      <Grid> 
       <Grid.ColumnDefinitions> 
       <ColumnDefinition x:Name="Col0" MinWidth="17" Width="Auto" SharedSizeGroup="MenuItemIconColumnGroup"/> 
       <ColumnDefinition Width="Auto" SharedSizeGroup="MenuTextColumnGroup"/> 
       <ColumnDefinition Width="Auto" SharedSizeGroup="MenuItemIGTColumnGroup"/> 
       <ColumnDefinition x:Name="Col3" Width="14"/> 
       </Grid.ColumnDefinitions> 

       <!-- ContentPresenter to show an Icon if needed --> 
       <ContentPresenter Grid.Column="0" Margin="4,0,6,0" x:Name="Icon" VerticalAlignment="Center" ContentSource="Icon"/> 

       <!-- Glyph is a checkmark if needed for a checkable menu --> 
       <Grid Grid.Column="0" Visibility="Hidden" Margin="4,0,6,0" x:Name="GlyphPanel" VerticalAlignment="Center"> 
       <Path x:Name="GlyphPanelpath" VerticalAlignment="Center" Fill="{TemplateBinding Foreground}" Data="M0,2 L0,4.8 L2.5,7.4 L7.1,2.8 L7.1,0 L2.5,4.6 z" FlowDirection="LeftToRight"/> 
       </Grid> 

       <!-- Content for the menu text etc --> 
       <ContentPresenter Grid.Column="1" 
           Margin="{TemplateBinding Padding}" 
           x:Name="HeaderHost" 
           RecognizesAccessKey="True" 
           ContentSource="Header"/> 

       <!-- Content for the menu IGT --> 
       <ContentPresenter Grid.Column="2" 
           Margin="8,1,8,1" 
           x:Name="IGTHost" 
           ContentSource="InputGestureText" 
           VerticalAlignment="Center"/> 

       <!-- Arrow drawn path which points to the next level of the menu --> 
       <Grid Grid.Column="3" Margin="4,0,6,0" x:Name="ArrowPanel" VerticalAlignment="Center"> 
       <Path x:Name="ArrowPanelPath" HorizontalAlignment="Right" VerticalAlignment="Center" Fill="{TemplateBinding Foreground}" Data="M0,0 L0,8 L4,4 z"/> 
       </Grid> 

       <!-- The Popup is the body of the menu which expands down or across depending on the level of the item --> 
       <Popup IsOpen="{Binding Path=IsSubmenuOpen, RelativeSource={RelativeSource TemplatedParent}}" Placement="Right" x:Name="SubMenuPopup" Focusable="false" PopupAnimation="{DynamicResource {x:Static SystemParameters.MenuPopupAnimationKey}}"> 
       <Border x:Name="SubMenuBorder" BorderBrush="{Binding Path=Foreground, RelativeSource={RelativeSource AncestorType={x:Type Menu}}}" BorderThickness="1" Padding="2,2,2,2"> 
        <Grid x:Name="SubMenu" Grid.IsSharedSizeScope="True"> 
        <!-- StackPanel holds children of the menu. This is set by IsItemsHost=True --> 
        <StackPanel IsItemsHost="True" KeyboardNavigation.DirectionalNavigation="Cycle"/> 
        </Grid> 
       </Border> 
       </Popup> 
      </Grid> 
      </Border> 

      <!-- These triggers re-configure the four arrangements of MenuItem to show different levels of menu via Role --> 
      <ControlTemplate.Triggers> 
      <!-- Role = TopLevelHeader : this is the root menu item in a menu; the Popup expands down --> 
      <Trigger Property="Role" Value="TopLevelHeader"> 
       <Setter Property="Padding" Value="6,1,6,1"/> 
       <Setter Property="Placement" Value="Bottom" TargetName="SubMenuPopup"/> 
       <Setter Property="MinWidth" Value="0" TargetName="Col0"/> 
       <Setter Property="Width" Value="Auto" TargetName="Col3"/> 
       <Setter Property="Visibility" Value="Collapsed" TargetName="Icon"/> 
       <Setter Property="Visibility" Value="Collapsed" TargetName="GlyphPanel"/> 
       <Setter Property="Visibility" Value="Collapsed" TargetName="IGTHost"/> 
       <Setter Property="Visibility" Value="Collapsed" TargetName="ArrowPanel"/> 
      </Trigger> 

      <!-- Role = TopLevelItem : this is a child menu item from the top level without any child items--> 
      <Trigger Property="Role" Value="TopLevelItem"> 
       <Setter Property="Padding" Value="6,1,6,1"/> 
       <Setter Property="Visibility" Value="Collapsed" TargetName="ArrowPanel"/> 
      </Trigger> 

      <!-- Role = SubMenuHeader : this is a child menu item which does not have children --> 
      <Trigger Property="Role" Value="SubmenuHeader"> 
       <Setter Property="DockPanel.Dock" Value="Top"/> 
       <Setter Property="Padding" Value="0,2,0,2"/> 
      </Trigger> 

      <!-- Role = SubMenuItem : this is a child menu item which has children--> 
      <Trigger Property="Role" Value="SubmenuItem"> 
       <Setter Property="DockPanel.Dock" Value="Top"/> 
       <Setter Property="Padding" Value="0,2,0,2"/> 
       <Setter Property="Visibility" Value="Collapsed" TargetName="ArrowPanel"/> 
      </Trigger> 
      <Trigger Property="IsSuspendingPopupAnimation" Value="true"> 
       <Setter Property="PopupAnimation" Value="None" TargetName="SubMenuPopup"/> 
      </Trigger> 

      <!-- If no Icon is present the we collapse the Icon Content --> 
      <Trigger Property="Icon" Value="{x:Null}"> 
       <Setter Property="Visibility" Value="Collapsed" TargetName="Icon"/> 
      </Trigger> 

      <!-- The GlyphPanel contains the CheckMark --> 
      <Trigger Property="IsChecked" Value="true"> 
       <Setter Property="Visibility" Value="Visible" TargetName="GlyphPanel"/> 
       <Setter Property="Visibility" Value="Collapsed" TargetName="Icon"/> 
      </Trigger> 

      <!-- Using the system colors for the Menu Highlight and IsEnabled--> 
      <Trigger Property="IsHighlighted" Value="true"> 
       <Setter Property="Background" Value="{StaticResource HighlightedBackgroundBrush}" TargetName="Border"/> 
       <Setter Property="Foreground" Value="{StaticResource HighlightedText}"/> 
       <Setter Property="BorderBrush" Value="{StaticResource NormalBorderBrush}" TargetName="Border"/> 
      </Trigger> 
      <Trigger Property="IsHighlighted" Value="false"> 
       <Setter Property="Background" Value="{StaticResource MenuBackgroundBrush}" TargetName="Border"/> 
       <Setter Property="Foreground" Value="{StaticResource SolidMenuFontBrush}"/> 
       <Setter Property="BorderBrush" Value="{StaticResource MenuBackgroundBrush}" TargetName="Border"/> 
      </Trigger> 
      <Trigger Property="IsEnabled" Value="false"> 
       <Setter Property="Foreground" Value="LightGray"/> 
      </Trigger> 
      </ControlTemplate.Triggers> 
     </ControlTemplate> 
     </Setter.Value> 
    </Setter> 
    </Style> 
    </Page.Resources> 
<Grid x:Name="mainGrid" 
     Background="#FF252525"> 

    <Menu x:Name="mainMenu" 
      Grid.ColumnSpan="2" 
      VerticalAlignment="Top"> 

     <MenuItem x:Name="fileMenu" 
        Header="File"> 

      <MenuItem x:Name="fileOpenMenuItem" 
         Header="Open..." /> 

      <MenuItem x:Name="fileSaveMenuItem" 
         Header="Save" /> 

      <MenuItem x:Name="fileSaveAsMenuItem" 
         Background="{DynamicResource menuItemBrush}" 
         Header="Save As..." /> 
     </MenuItem> 
    </Menu> 
    </Grid> 
</Page> 

Answer 2

आप के लिए टेम्पलेट अधिभावी के बिना यह नहीं कर सकते

यहाँ मेरी मेनू की तरह (डिफ़ॉल्ट सफेद पृष्ठभूमि नोटिस) दिखता है मेनू आइटम। टेम्पलेट के अंदर गहराई "Part_Popup" नामक एक नियंत्रण है। आपको इसका पृष्ठभूमि रंग बदलना होगा।