具有多种类型的一个参数C#通用方法
我在写一个通用的方法来检索AD组或用户,可以参数的问题,有两种类型中的一种 - 无论是 System.DirectoryServices.AccountManagement GroupPrincipal
或 UserPrincipal
I'm having a problem writing a generic method to retrieve AD Groups or Users with a parameter that can be one of two types - either System.DirectoryServices.AccountManagement GroupPrincipal
or UserPrincipal
的方法如下: -
private static IEnumerable<string> GetGroupsOrUsers<T>(T GroupOrUserPrincipal)
{
PrincipalSearcher ps = new PrincipalSearcher();
ps.QueryFilter = GroupOrUserPrincipal;
etc.........
}
问题是GroupOrUserPrincipal是显示以下错误: -
The problem is the GroupOrUserPrincipal is showing the following error:-
无法隐式转换类型'T'到
系统。 DirectoryServices.AccountManagement.Principal
Cannot implicitly convert type 'T' to System.DirectoryServices.AccountManagement.Principal
我是否能做到这一点还是我失去了一些东西?
Am I able to do this or am I missing something ?
您应该限制 T
来的类型,你的方法是有道理的:
You should restrict T
to types that your method makes sense for:
private static IENumerable<string> GetGroupsOrUsers<T>(T GroupOrUserPrincipal)
where T : Principal
{
// .....
这是防止通话 GetGroupsOrUsers< INT>
,并让 T
是隐式转换为主要
,修复您的错误(或者我希望如此)。
That prevents calls of GetGroupsOrUsers<int>
, and lets T
be implicitly converted to Principal
, fixing your error (or so I hope).