使用 C# 进行 AD 请求
我试图使用以下代码从 AD 获取所有用户及其密码到期日期，但出现错误。
System.InvalidOperationException：“调用此方法之前必须保留主体对象。”
代码：
PrincipalContext domain = new PrincipalContext(ContextType.Domain,"AAA","OU=USERS,OU=TEST,DC=AAA,DC=AA, DC=A");
UserPrincipal user = new UserPrincipal(domain);
PrincipalSearcher pS = new PrincipalSearcher(user);
foreach (UserPrincipal result in pS.FindAll())
{
if (result != null && result.DisplayName != null)
{
DirectoryEntry entry = (DirectoryEntry)user.GetUnderlyingObject();
IADsUser native = (IADsUser)entry.NativeObject;
Console.WriteLine(result.DisplayName, native.PasswordExpirationDate);
}
}
I'm trying to get all users from AD and their passwords expiration dates with the following code, but got the error.
System.InvalidOperationException: 'The Principal object must be persisted before this method can be called.'
The code:
PrincipalContext domain = new PrincipalContext(ContextType.Domain,"AAA","OU=USERS,OU=TEST,DC=AAA,DC=AA, DC=A");
UserPrincipal user = new UserPrincipal(domain);
PrincipalSearcher pS = new PrincipalSearcher(user);
foreach (UserPrincipal result in pS.FindAll())
{
if (result != null && result.DisplayName != null)
{
DirectoryEntry entry = (DirectoryEntry)user.GetUnderlyingObject();
IADsUser native = (IADsUser)entry.NativeObject;
Console.WriteLine(result.DisplayName, native.PasswordExpirationDate);
}
}
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评论（1）
该异常意味着您正在对尚未保存的
UserPrincipal对象调用GetUnderlyingObject()。您正在为
PrincipalSearcher创建作为过滤器的user对象调用GetUnderlyingObject()。我认为您打算在结果上调用它：The exception means that you're calling
GetUnderlyingObject()on aUserPrincipalobject that hasn't been saved.You're calling
GetUnderlyingObject()on theuserobject that you created as the filter for yourPrincipalSearcher. I think you intended to call it onresult: