相关疑难解决方法(0)

(这个问题与另一个问题有关,但不同,我认为这需要在这里放置.)

这是一个(严重剪断)Window:

<Window x:Class="Gmd.TimeTracker2.TimeTrackerMainForm"
    xmlns:local="clr-namespace:Gmd.TimeTracker2"
    xmlns:localcommands="clr-namespace:Gmd.TimeTracker2.Commands"
    x:Name="This"
    DataContext="{Binding ElementName=This}">
    <Window.CommandBindings>
        <CommandBinding Command="localcommands:TaskCommands.ViewTaskProperties" 
                        Executed="HandleViewTaskProperties" 
                        CanExecute="CanViewTaskPropertiesExecute" />
    </Window.CommandBindings>
    <DockPanel>
<!-- snip stuff -->
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition />
                <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
<!-- snip more stuff -->
            <Button Content="_Create a new task" Grid.Row="1" x:Name="btnAddTask" Click="HandleNewTaskClick" />
        </Grid>
    </DockPanel>
</Window>

这是一个(严重剪断)UserControl:

<UserControl x:Class="Gmd.TimeTracker2.TaskStopwatchControl"
             xmlns:local="clr-namespace:Gmd.TimeTracker2"
             xmlns:localcommands="clr-namespace:Gmd.TimeTracker2.Commands"
             x:Name="This"
             DataContext="{Binding ElementName=This}">
    <UserControl.ContextMenu>
        <ContextMenu>
            <MenuItem x:Name="mnuProperties" Header="_Properties" Command="{x:Static localcommands:TaskCommands.ViewTaskProperties}" 
                      CommandTarget="What goes here?" />
        </ContextMenu>
    </UserControl.ContextMenu>
    <StackPanel>
        <TextBlock MaxWidth="100" Text="{Binding Task.TaskName, Mode=TwoWay}" TextWrapping="WrapWithOverflow" …