private void OnListBoxDoubleClick(object sener, EventArgs e) { IToolboxUser docDes = null; SelfHostToolboxItem selectedItem = listBox.SelectedItem as SelfHostToolboxItem; if (selectedItem == null) { return; } this.currentSelection = selectedItem.ComponentType; IDesignerHost host = (IDesignerHost)provider.GetService(typeof(IDesignerHost)); //des.ActiveDesigner; if (host != null && this.currentSelection != null) { IDesigner designer = host.GetDesigner(host.RootComponent); if (designer is IToolboxUser) { docDes = (IToolboxUser)designer; } if (docDes != null) { ToolboxItem c = ToolboxService.GetToolboxItem(this.currentSelection); Debug.Assert(c != null, "Class " + this.currentSelection.FullName + " does not exist"); if (c != null && docDes.GetToolSupported(c)) { try { docDes.ToolPicked(c); } catch (Exception ex) { IUIService uis = (IUIService)provider.GetService(typeof(IUIService)); if (uis != null) { uis.ShowError(ex); } else { MessageBox.Show("Error: " + ex.ToString()); } } } } else { object o = Activator.CreateInstance(this.currentSelection); SequentialWorkflowActivity service = host.RootComponent as SequentialWorkflowActivity; service.Activities.Add(o as Activity); host.RootComponent.Site.Container.Add(o as IComponent); } } }
//Start the drag drop when user selects and drags the tool private void OnListBoxMouseMove(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left && this.listBox.SelectedItem != null) { SelfHostToolboxItem selectedItem = listBox.SelectedItem as SelfHostToolboxItem; if (selectedItem == null || selectedItem.ComponentType == null) { return; } ToolboxItem toolboxItem = ToolboxService.GetToolboxItem(selectedItem.ComponentType); IDataObject dataObject = this.SerializeToolboxItem(toolboxItem) as IDataObject; DragDropEffects effects = DoDragDrop(dataObject, DragDropEffects.Copy | DragDropEffects.Move); } }
public virtual ToolboxItem GetSelectedToolboxItem() { ToolboxItem toolClass = null; if (this.currentSelection != null) { try { toolClass = ToolboxService.GetToolboxItem(this.currentSelection); } catch (TypeLoadException) { } } return(toolClass); }