GraphSharp Vertex Double Click Событие

Question

Я использую graphSharp в своем приложении winforms. Однако я добавил Node Double click Event для вершины, но проблема в том, как мне получить значение нажатой вершины.

Код:

    Private Sub VertexControl_MouseDoubleClick(ByVal sender As Object, ByVal e As System.Windows.Input.MouseButtonEventArgs)
                     ' Dim a As String
        'a = GraphCanvas.GetX(Me).ToString
      Msg(a)
    End Sub

    Public Event VertexSelected As VertexSelectedEventHandler

    Public Overridable Sub OnVertexSelected(ByVal vc As VertexControl)
        RaiseEvent VertexSelected(Me, New VertexSelectedEventArgs(vc))
    End Sub
End Class

Public Class TaggedGraphLayout
    Inherits GraphLayout(Of Object, TaggedEdge(Of Object, Object), IBidirectionalGraph(Of Object, TaggedEdge(Of Object, Object)))
End Class

Public Delegate Sub VertexSelectedEventHandler(ByVal sender As Object, ByVal args As VertexSelectedEventArgs)

Public Class VertexSelectedEventArgs
    Inherits System.EventArgs
    Public Property VertexControl() As VertexControl

    Public Sub New(ByVal vc As VertexControl)
        MyBase.New()
        VertexControl = vc
    End Sub
End Class

Answer 1

Я сделал это так (извините за код C#)

В моем XAML я определил обработчик на панели стека, содержащий все данные моего узла:

<DataTemplate x:Key="componentTemplate" DataType="{x:Type graph:ComponentVertex}">
  <StackPanel Orientation="Horizontal" Margin="5" MouseDown="UIElement_OnMouseDown">
    <TextBlock x:Name="IdBlock" Text="{Binding Path=ID, Mode=OneWay}" Foreground="White"/>
  </StackPanel>
</DataTemplate>

И обработчик событий:

    private void UIElement_OnMouseDown(object sender, MouseButtonEventArgs e)
    {
        // Check for double-click only
        if (e.ClickCount >= 2)
        {
            // The DataContext is my custom vertex
            var vm = (ComponentVertex)((StackPanel)sender).DataContext;
            MessageBox.Show(vm.ID);
            e.Handled = true; // Avoid further graph handling
        }
    }