Exemplo n.º 1
0
        /// <summary>
        /// Remove the current workflow from the designer
        /// </summary>
        private void ClearWorkflow()
        {
            if (_designSurface != null)
            {
                IDesignerHost designer = _designSurface.GetService(
                    typeof(IDesignerHost)) as IDesignerHost;
                if (designer != null)
                {
                    if (designer.Container.Components.Count > 0)
                    {
                        _wfLoader.RemoveFromDesigner(designer,
                                                     designer.RootComponent as Activity);
                    }
                }
            }

            if (_designSurface != null)
            {
                _designSurface.Dispose();
                _designSurface = null;
            }

            if (_workflowView != null)
            {
                ISelectionService selectionService
                    = ((IServiceProvider)_workflowView).GetService(
                          typeof(ISelectionService)) as ISelectionService;
                if (selectionService != null)
                {
                    selectionService.SelectionChanged -= new EventHandler(
                        selectionService_SelectionChanged);
                }

                Controls.Remove(_workflowView);
                _workflowView.Dispose();
                _workflowView = null;
            }

            if (_toolboxControl != null)
            {
                Controls.Remove(_toolboxControl);
            }
        }