Dispose Check

Hello, I am having problem with DockingManager while closing its child control. The child control is a form, it has an array which is initialized on loading the form into the docking manager. When i close the control it is diposed in the DockVisiblilty Changed event. But the memory consumed by the form doesn''t released. I am setting the null to array in the form dispose. I think the DockingManager does not dispose the form properly it sill holds the reference. Is there anyother way to avoid the memory leak. Here i attached a sample programe for your reference. Thnaks Suresh Mani. DisposeCheck_3710.zip