block

AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/SelectableDesignerItemViewModelBase.cs

@@ -93,6 +93,11 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
+        public int EditClickCount
+        {
+            get; set;
+        } = 2;
+
         private bool enabledForSelection = true;
         public bool EnabledForSelection
         {
@@ -183,6 +188,12 @@ namespace AIStudio.Wpf.DiagramDesigner
             }
         }
 
+
+        public virtual void PreviewExecuteEdit()
+        {
+        
+        }
+
         protected virtual void ExecuteEditCommand(object param)
         {
             if (IsReadOnly == true) return;

AIStudio.Wpf.DiagramDesigner/ViewModels/BlockViewModel/BlockDesignerItemViewModel.cs

@@ -428,6 +428,11 @@ namespace AIStudio.Wpf.DiagramDesigner
             await (this.GetFirst() ?? this).Execute();           
         }
 
+        public override async void PreviewExecuteEdit()
+        {
+            await BeforeExecute();
+        }
+
         public async Task Execute()
         {
             await BeforeExecute();