internal void Refresh(TreeViewItem item) { Tracer.Verbose("DatabaseExplorerService:Refresh", "START"); try { SchemaObjectBase dbObject = (SchemaObjectBase)item.Tag; if (dbObject != null) { dbObject.Refresh(); item.IsExpanded = false; item.Items.Clear(); this.treeViewDB.AddDummyItem(item); } } catch (Exception err) { Tracer.Error("DatabaseExplorerService.Refresh", err); } finally { Tracer.Verbose("DatabaseExplorerService:Refresh", "END"); } }