Parameters

idLists

Type: System.Collections.GenericIEnumerableIWithIdList
The child identifier lists.

Return Value

Type: ShellItemIdList
An instance of ShellItemIdList or null if there is no common root folder.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerableIWithIdList. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).