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);
}
}
}
public ToolboxItem GetSelectedToolboxItem(System.ComponentModel.Design.IDesignerHost host)
{
IToolboxUser toolboxUser = (IToolboxUser)host.GetDesigner(host.RootComponent);
if (toolboxUser.GetToolSupported(selectedItem))
{
return(selectedItem);
}
else
{
return(null);
}
}
public ToolboxItemCollection GetToolboxItems(System.ComponentModel.Design.IDesignerHost host)
{
ArrayList tools = new ArrayList();
IToolboxUser toolboxUser = (IToolboxUser)host.GetDesigner(host.RootComponent);
foreach (ArrayList arr in categories.Values)
{
foreach (ToolboxItem tool in arr)
{
if (toolboxUser.GetToolSupported(tool))
{
tools.Add(tool);
}
}
}
return(new ToolboxItemCollection((ToolboxItem[])tools.ToArray(typeof(ToolboxItem))));
}
protected override bool EvaluateCustomFilter(IToolboxUser user)
{
return(user.GetToolSupported(item));
}
protected override bool EvaluateCustomFilter(IToolboxUser user)
{
return user.GetToolSupported (item);
}