Gets a value indicating whether access to the ICollection is synchronized.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
If a collection is thread safe, the property returns true, and the programmer does not have to do anything to keep the collection thread safe.
If, as is the case with the BaseCollection, the property returns false, then the SyncRoot property returns an object that can be used with the C# lock keyword. Use the static Enter and Exit methods of the Monitor class to manually lock and unlock the synchronization object.