我在尝试使用层次结构在C#(WPF)中创建ContextMenu时遇到了困难。源是一个简单的List,其中包含:
\\root\folderA\programA.exe
\\root\folderA\programB.exe
\\root\folderA\programC.exe
\\root\folderB\programA.exe
\\root\folderB\programE.exe
\\root\programF.exe
\\root\programG.exe
\\root\programH.exe
基本上我必须创建一个菜单:
-root
-folderA
-programA.exe
-programB.exe
-programC.exe
我对WPF的经验很少,我知道这可以结合ContextMenu和MenuItem来完成。任何提示?
答案 0 :(得分:0)
我假设您正在为每个TreeViewItem创建视图模型?如果是这样,那么只需为每个视图模型类型分配不同的<HierarchicalDataTemplate>
资源,然后每个模板都可以拥有它自己的<ContentMenu>
。例如,这是我的一个项目,我正在创建一个像TreeView一样的SQL对象资源管理器:
<TreeView.Resources>
<!-- Brushes for the selected item -->
<LinearGradientBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFDCEBFC" Offset="0"/>
<GradientStop Color="#FFC1DBFC" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="{x:Static SystemColors.ControlBrushKey}" EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFF8F8F8" Offset="0"/>
<GradientStop Color="#FFE5E5E5" Offset="1"/>
</LinearGradientBrush>
<SolidColorBrush x:Key="{x:Static SystemColors.HighlightTextBrushKey}" Color="Black" />
<SolidColorBrush x:Key="{x:Static SystemColors.ControlTextBrushKey}" Color="Black" />
<HierarchicalDataTemplate DataType="{x:Type vm:ServerViewModel}" ItemsSource="{Binding Children}">
<StackPanel Orientation="Horizontal" Margin="2,1,5,2">
<StackPanel.ContextMenu>
<ContextMenu>
<MenuItem Header="Refresh">
<MenuItem.Icon>
<Image Source="/Content/ServerExplorer/RefreshIcon.png"></Image>
</MenuItem.Icon>
</MenuItem>
</ContextMenu>
</StackPanel.ContextMenu>
<Grid Margin="0,0,3,0">
<Image Name="icon" Source="/Content/ServerExplorer/ServerIcon.png" Height="16" Width="16"></Image>
</Grid>
<TextBlock Text="{Binding Name}" />
</StackPanel>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate DataType="{x:Type vm:DatabaseViewModel}" ItemsSource="{Binding Children}">
<StackPanel Orientation="Horizontal" Margin="2,1,5,2">
<StackPanel.ContextMenu>
<ContextMenu>
<MenuItem Header="Refresh">
<MenuItem.Icon>
<Image Source="/Content/ServerExplorer/RefreshIcon.png"></Image>
</MenuItem.Icon>
</MenuItem>
</ContextMenu>
</StackPanel.ContextMenu>
<Grid Margin="0,0,3,0">
<Image Name="icon" Source="/Content/ServerExplorer/DatabaseIcon.png" Height="16" Width="16"></Image>
</Grid>
<TextBlock Text="{Binding Name}" />
</StackPanel>
</HierarchicalDataTemplate>
<DataTemplate DataType="{x:Type vm:TableViewModel}">
<StackPanel Orientation="Horizontal" Margin="2,1,5,2">
<StackPanel.ContextMenu>
<ContextMenu>
<MenuItem Header="Script Records" Click="ScriptRecords_Click">
<MenuItem.Icon>
<Image Source="/Content/ServerExplorer/ScriptIcon.png"></Image>
</MenuItem.Icon>
</MenuItem>
<MenuItem Header="Script Table">
<MenuItem.Icon>
<Image Source="/Content/ServerExplorer/ScriptIcon.png"></Image>
</MenuItem.Icon>
</MenuItem>
<MenuItem Header="Create Replication">
<MenuItem.Icon>
<Image Source="/Content/ServerExplorer/ReplicationIcon.png"></Image>
</MenuItem.Icon>
</MenuItem>
</ContextMenu>
</StackPanel.ContextMenu>
<Grid Margin="0,0,3,0">
<Image Name="icon" Source="/Content/ServerExplorer/TableIcon.png" Height="16" Width="16"></Image>
</Grid>
<TextBlock Text="{Binding Name}" />
</StackPanel>
</DataTemplate>
<DataTemplate DataType="{x:Type vm:StoredProcedureViewModel}">
<StackPanel Orientation="Horizontal" Margin="2,1,5,2">
<StackPanel.ContextMenu>
<ContextMenu>
<MenuItem Header="Script Procedure">
<MenuItem.Icon>
<Image Source="/Content/ServerExplorer/ScriptIcon.png"></Image>
</MenuItem.Icon>
</MenuItem>
</ContextMenu>
</StackPanel.ContextMenu>
<Grid Margin="0,0,3,0">
<Image Name="icon" Source="/Content/ServerExplorer/StoredProcedureIcon.png" Height="16" Width="16"></Image>
</Grid>
<TextBlock Text="{Binding Name}" />
</StackPanel>
</DataTemplate>
</TreeView.Resources>
我为每个TreeViewItem创建了一个不同的ViewModel。在您的情况下,您可能有一个RootViewModel,FolderViewModel,然后是FileViewModel。每个人都有自己的模板,然后你可以根据需要设置每个模板。