private void Part_Dropped(TabControlParts_DragItem e) { RemoveFromTab(e.Part3D); this.PreviousRemoved.Add(Tuple.Create(e.Part3D.Token, DateTime.UtcNow)); }
private void TabControl_PreviewMouseMove(object sender, MouseEventArgs e) { bool shouldClearDragStart = true; try { if (_dragStart == null || e.LeftButton != MouseButtonState.Pressed) { return; } TabControlPartsVM context = this.DataContext as TabControlPartsVM; if (context == null) { return; } // Get the current mouse position Point mousePos = e.GetPosition(null); Vector diff = _dragStart.Value - mousePos; if (Math.Abs(diff.X) > SystemParameters.MinimumHorizontalDragDistance || Math.Abs(diff.Y) > SystemParameters.MinimumVerticalDragDistance) { // Get the item they are dragging TabControlParts_DragItem dragItem = context.GetDragItem((DependencyObject)e.OriginalSource); if (dragItem == null) { return; } // This isn't null on the reentry. It's like DragDrop.DoDragDrop is double calling //if(_dragStart == null) //{ // return; //} shouldClearDragStart = false; // Initialize the drag & drop operation DataObject dragData = new DataObject(DRAGDROP_FORMAT, dragItem); if (DragDrop.DoDragDrop(this, dragData, DragDropEffects.Move) == DragDropEffects.None) { // If they drag around, but not in a place where Drop gets fired, then execution reenters here. if (this.DragDropCancelled != null) { this.DragDropCancelled(this, dragItem); } } else { shouldClearDragStart = true; } } else { shouldClearDragStart = false; } } catch (Exception ex) { MessageBox.Show(ex.ToString(), TITLE, MessageBoxButton.OK, MessageBoxImage.Error); } finally { if (shouldClearDragStart) { _dragStart = null; } } }
private void tabCtrl_DragDropCancelled(object sender, TabControlParts_DragItem e) { try { // Since the tabcontrol started the dragdrop, it knows when the drop failed // Get rid of the dragging part if (_draggingDropObject != null && _draggingDropObject.HasAddedToViewport) // this will be null if they started dragging, but not over the 3D viewport { _viewport.Children.Remove(_draggingDropObject.Model); } _draggingDropObject = null; } catch (Exception ex) { MessageBox.Show(ex.ToString(), _msgboxCaption, MessageBoxButton.OK, MessageBoxImage.Error); } }
private void Part_Dropped(TabControlParts_DragItem e) { RemoveFromTab(e.Part3D); this.PreviousRemoved.Add(Tuple.Create(e.Part3D.Token, DateTime.UtcNow)); }