private void Drop(DragEventArgs e) { Canvas canvas = new Canvas(); canvas = (Canvas)e.Source; Model.Bal balM = new Model.Bal(); balM.BalKleur = (Brush)e.Data.GetData("deBal"); balM.xPos = e.GetPosition(canvas).X - 20; balM.yPos = e.GetPosition(canvas).Y - 20; BalVM balVM = new BalVM(balM); ballen.Add(balVM); }