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);
}
public WorkflowDesignerControl()
{
InitializeComponent();
toolbox = new ToolboxService(this);
this.propertyGridSplitter.Panel1.Controls.Add(toolbox);
toolbox.Dock = DockStyle.Fill;
toolbox.BackColor = BackColor;
WorkflowTheme.CurrentTheme.ReadOnly = true;
this.propertyGrid.BackColor = BackColor;
this.propertyGrid.Site = this;
this.propertyGrid.PropertyValueChanged += (s, e) =>
{
if (e.ChangedItem.PropertyDescriptor.Name == "Name")
{
Save();
}
};
}
