// The external command invokes this on the end-user's request
public void ShowPlaceElementsForm()
{
// If we do not have a dialog yet, create and show it
if (selectorForm == null || selectorForm.IsDisposed)
{
// A new handler to handle request posting by the dialog
UserInputHandler handler = new UserInputHandler();
// External Event for the dialog to use (to post requests)
ExternalEvent exEvent = ExternalEvent.Create(handler);
// We give the objects to the new dialog;
// The dialog becomes the owner responsible for disposing them, eventually.
selectorForm = new PlaceElementsForm(exEvent);
PlaceElementsForm.form = selectorForm;
selectorForm.Show();
}
}
