Third try to describing problem:
- Try 1: Sunchronizing view model and view
- Try2: WPF ViewModel not active presenter
- Try3:
I have some class for view models:
public class Node : INotifyPropertyChanged
{
Guid NodeId { get; set; }
public string Name { get; set; }
}
public class Connection: INotifyPropertyChanged
{
public Node StartNode { get; set; }
public Node EndNode { get; set; }
}
public class SettingsPackModel
{
public List<Node> Nodes { get; private set; }
public List<Connection> Connections { get; private set; }
}
I also have some templates to displays these models:
<DataTemplate DataType="{x:Type vm:Node}">…</DataTemplate>
<DataTemplate DataType="{x:Type vm:Connection}">
<my:ConnectionElment StartNodeElment="???" EndNodeElment="???">
</my:ConnectionElment>
<DataTemplate>
But the problem is that DataTemplate for Connection need reference ot two element of type UIElement , how can I pass these two, how can I fill ??? in above expression?
Edit: I actually want to hide that's part in this try, but as I describe it there: Sunchronizing view model and view. I would use something like this :
<ItemsControl ItemsSource="{Binding AllElements}"
ItemContainerStyle="{StaticResource ElementThumbVMDataTemplateStyle>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<kw:DiagramCanvas />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
<Style x:Key="ElementThumbVMDataTemplateStyle" TargetType="ContentPresenter">
<Setter Property="Canvas.Left" Value="{Binding CanvasLeft,Mode=TwoWay}" />
<Setter Property="Canvas.Top" Value="{Binding CanvasTop,Mode=TwoWay}" /> </Style >
And something like this for Node DataTemplate:
<DataTemplate DataType="{x:Type vm:Node}">
<kw:ElementThumb Canvas.Left="{Binding CanvasLeft,Mode=TwoWay}"
Canvas.Top="{Binding CanvasTop,Mode=TwoWay}">
</kw:ElementThumb>
</DataTemplate>
Canvasleft and CanvasTop are properties that exist in Node and also ElementThumb classes.
