Is this a bug of whidbey
When open a previous version project that has a custom usercontrol with whidbey.if whidbey can't reference this custom control correct,the contour line of form will can't be displayed correct!
The region of contour line doesn't inosculate with the form's figure,General, the region of contour line surround less than the form region actual!
When drag the contour line will mouse ,it can be displayed correct!
the screen snapshoot: