diff --git a/Rs.Controls/CameraTemplate.cs b/Rs.Controls/CameraTemplate.cs
index 103f99e..2b26b00 100644
--- a/Rs.Controls/CameraTemplate.cs
+++ b/Rs.Controls/CameraTemplate.cs
@@ -274,6 +274,7 @@ namespace Rs.MotionPlat
             bGrabContinue = false;
             if (CustomDefineGrabEvent!=null)
             {
+                bGrab = true;
                 CustomDefineGrabEvent?.Invoke();
                 LoadImage();
             }