SPUserCollection Class

Represents a collection of SPUser objects.

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online

<ClientCallableTypeAttribute(Name := "UserCollection", ServerTypeId := "{e090781e-8899-4672-9b3d-a78f49fad19d}",  _
	CollectionChildItemType := GetType(SPUser))> _
<SubsetCallableTypeAttribute> _
Public Class SPUserCollection _
	Inherits SPMemberCollection
Dim instance As SPUserCollection

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.