Date : March 29 2020, 07:55 AM
around this issue give the x:Name="xImages" to the ItemsControl and then do the binding with ElementName to the ContextMenu using the Action.TargetWithoutContext, you had it right but the ScrollViewer isn't what has the Datacontext to the List of data, the ItemControl does since it has the ItemSource. Was there a reason for naming the ScrollViewer? <ItemsControl x:Name="xImages">
<ContextMenu Action.TargetWithoutContext="{Binding Path=DataContext, ElementName=xImages}">
<!-- Shortened -->
</ContextMenu>
</ItemsControl>
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Date : March 29 2020, 07:55 AM
Any of those help Got it to work through a DependencyObject that is added to the ImageBlock, where I had to set the PlacementTarget of the ContextMenu to the ImageBlock. Strangely, setting the PlacementTarget of the ContextMenu through {Binding ...} to ImageBlock directly didn't work.
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Caliburn Micro and ContextMenu results in target not found
Tag : chash , By : msugar
Date : March 29 2020, 07:55 AM
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Tag : chash , By : arbeitandy
Date : March 29 2020, 07:55 AM
may help you . Your overriding what CM will do by placing the Command binding. Since the visual tree has no idea the context menu exists let alone the datacontext that is the purpose behind. <ListView.ItemContainerStyle>
<Style TargetType="{x:Type ListViewItem}">
<Setter Property="Tag" Value="{Binding Path=DataContext, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ListView}}"/>
<Setter Property="ContextMenu">
<Setter.Value>
<ContextMenu cal:Action.TargetWithoutContext="{Binding Path=PlacementTarget.Tag, RelativeSource={RelativeSource Self}}">
<MenuItem Header="Properties" cal:Message.Attach="ShowProperties($dataContext)" >
<MenuItem.Icon>
<Image Source="../PropertyIcon.png" />
</MenuItem.Icon>
</MenuItem>
</ContextMenu>
</Setter.Value>
</Setter>
</Style>
</ListView.ItemContainerStyle>
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Tag : chash , By : Mikael
Date : March 29 2020, 07:55 AM
I wish this help you You might have to move the Context Menu further into the TreeView, into the Item Template and add Context Menu to the Label/TextBlock you have in nodes. For example, consider the following Employee tree (emulating since I do not know your data structure), <TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Positions}" >
<Label Content="{Binding DepartmentName}"/>
<HierarchicalDataTemplate.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Employees}" >
<Label Content="{Binding PositionName}" Tag="{Binding DataContext, ElementName=TestControl}" >
<Label.ContextMenu>
<ContextMenu cal:Action.TargetWithoutContext="{Binding PlacementTarget.Tag, RelativeSource={RelativeSource Self}}">
<MenuItem Header="Add Element" cal:Message.Attach="[Event Click] = [Action AddElement($datacontext)]"/>
</ContextMenu>
</Label.ContextMenu>
</Label>
<HierarchicalDataTemplate.ItemTemplate>
<DataTemplate>
<Label Content="{Binding EmployeeName}" Tag="{Binding DataContext, ElementName=TestControl}">
<Label.ContextMenu>
<ContextMenu cal:Action.TargetWithoutContext="{Binding PlacementTarget.Tag, RelativeSource={RelativeSource Self}}">
<MenuItem Header="Add Element" cal:Message.Attach="[Event Click] = [Action AddElement($datacontext)]"
/>
</ContextMenu>
</Label.ContextMenu>
</Label>
</DataTemplate>
</HierarchicalDataTemplate.ItemTemplate>
</HierarchicalDataTemplate>
</HierarchicalDataTemplate.ItemTemplate>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
Tag="{Binding DataContext, ElementName=TestControl}"
cal:Action.TargetWithoutContext="{Binding PlacementTarget.Tag, RelativeSource={RelativeSource Self}}"
cal:Message.Attach="[Event Click] = [Action AddElement($datacontext)]"
<Window
x:Class="WpfApp1.Views.ShellView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:cal="http://www.caliburnproject.org"
Title="XmlData Tree Test"
x:Name="TestControl"
Width="250"
Height="350"
>
<HierarchicalDataTemplate DataType="root" ItemsSource="{Binding XPath=./*}" >
<StackPanel Orientation="Horizontal">
<TextBlock Margin="0" Text="ROOT" Tag="{Binding DataContext, ElementName=TestControl}">
<TextBlock.ContextMenu>
<ContextMenu
cal:Action.TargetWithoutContext="{Binding PlacementTarget.Tag, RelativeSource={RelativeSource Self}}">
<MenuItem Header="Add Element" cal:Message.Attach="[Event Click] = [Action AddElement($datacontext)]" />
</ContextMenu>
</TextBlock.ContextMenu>
</TextBlock>
</StackPanel>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate DataType="Node"
ItemsSource="{Binding XPath=./*}">
<StackPanel Orientation="Horizontal">
<TextBlock Margin="0"
Text="Node:" />
<TextBlock Margin="5,0,0,0" Tag="{Binding DataContext, ElementName=TestControl}"
Text="{Binding XPath=@name}" >
<TextBlock.ContextMenu>
<ContextMenu
cal:Action.TargetWithoutContext="{Binding PlacementTarget.Tag, RelativeSource={RelativeSource Self}}">
<MenuItem Header="Add Element" cal:Message.Attach="[Event Click] = [Action AddElement($datacontext)]" />
</ContextMenu>
</TextBlock.ContextMenu>
</TextBlock>
</StackPanel>
</HierarchicalDataTemplate>
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