_activeDesignSurfaceChanged

2 writes to _activeDesignSurfaceChanged

System.Windows.Forms.Design (2)

System\ComponentModel\Design\DesignSurfaceManager.cs (2)

100_activeDesignSurfaceChanged += value; 104_activeDesignSurfaceChanged -= value;

5 references to _activeDesignSurfaceChanged

System.Windows.Forms.Design (5)

System\ComponentModel\Design\DesignSurfaceManager.cs (5)

91if (_activeDesignSurfaceChanged is null) 105if (_activeDesignSurfaceChanged is not null) 334Debug.Assert(_activeDesignSurfaceChanged is not null, "Should have detached this event handler."); 335if (_activeDesignSurfaceChanged is not null) 340_activeDesignSurfaceChanged(this, new ActiveDesignSurfaceChangedEventArgs(oldSurface, newSurface));