函数定义是这样的：
Public Shared Function GetUsers(ByVal portalId As Integer, ByVal isHydrated As Boolean, ByVal pageIndex As Integer, ByVal pageSize As Integer, ByRef totalRecords As Integer) As ArrayList
在VB.NET中可以这样引用：
Users = UserController.GetUsers(UsersPortalId, False, CurrentPage - 1, PageSize, TotalRecords)
但在C＃中，引用要加上"ref",参见MSDN: ref（C# 参考）
Users = UserController.GetUsers(UsersPortalId, false, CurrentPage-1, PageSize, ref TotalRecords);