version: vs2005 Autocompletion inserts (), even on a place were a delegate (thus just a method name, not a method call) is expected. Example: private delegate void CallBack(); private CallBack callBack; protected void MyCallBack() { // ... } public string Test([Validation] string p) { callBack = M| // | is cursor position // ... } Result when pressing autocomplete: callBack = MyCallBack();| // | is cursor position and an error message "Cannot convert source type 'void' to ...".