c# – 扩展UserPrincipal类

概述我做了UserPrincipal类的扩展,以检索我需要的一些缺少的属性： [DirectoryObjectClass("user")][DirectoryRdnPrefix("CN")]class UserPrincipalExt : UserPrincipal{ public UserPrincipalExt(PrincipalContext context) : 我做了UserPrincipal类的扩展,以检索我需要的一些缺少的属性：

[DirectoryObjectClass("user")][DirectoryRdnPrefix("CN")]class UserPrincipalExt : UserPrincipal{    public UserPrincipalExt(PrincipalContext context)        : base(context)    {    }    [DirectoryProperty("department")]    public string Department    {        get        {            if (ExtensionGet("department").Length != 1)                return null;            return (string)ExtensionGet("department")[0];        }        set         {             this.ExtensionSet("department",value);         }    }    [DirectoryProperty("company")]    public string Company    {        get        {            if (ExtensionGet("company").Length != 1)                return null;            return (string)ExtensionGet("company")[0];        }        set        {            this.ExtensionSet("company",value);        }    }    [DirectoryProperty("c")]    public string CountryAbbreviation    {        get        {            if (ExtensionGet("c").Length != 1)                return null;            return (string)ExtensionGet("c")[0];        }        set        {            this.ExtensionSet("c",value);        }    }}

然后,我可以像这样轻松搜索：

PrincipalContext principalContext = new PrincipalContext(ContextType.Domain,myDomain); UserPrincipalExt userExt = new UserPrincipalExt(principalContext); PrincipalSearcher searcher = new PrincipalSearcher(userExt); userExt.Givenname = "blabla"; userExt.EmailAddress ="text here"; PrincipalSearchResult<Principal> searchtmp = null; searcher.queryFilter = userExt; searchtmp = searcher.FindAll();

因此,我的新任务和我当前的问题是：对于ActiveDirectory中搜索到的组,当然需要使用扩展类来获取用户列表.

GroupPrincipal group = (GroupPrincipal)collection.FirstOrDefault();foreach (Principal pRes in group.GetMembers()){   //This doesnt work of course.   // return null value.   UserPrincipalExt user = pRes as UserPrincipalExt;}

我怎样才能实现目标？

作为解决方法,我已经创建了一个函数来检索属性：

private string GetExtendedProperty(Principal principal,string propertyTo)    {        string property = "";        try        {            DirectoryEntry directoryEntry = principal.GetUnderlyingObject() as DirectoryEntry;            if (directoryEntry.PropertIEs.Contains(propertyTo))            {                property = directoryEntry.PropertIEs[propertyTo].Value.ToString();            }            else            {                property = "";            }        }        catch (Exception ex)        {            Logger.ScriviLog(4,this.GetType().name,MethodBase.GetCurrentMethod().name,ex.Message);        }        return property;    }

先感谢您.

解决方法 覆盖扩展类中的FindByIDentity方法.

public new static User FindByIDentity(PrincipalContext context,string IDentityValue){    return (User)FindByIDentityWithType(context,typeof(User),IDentityValue);}public new static User FindByIDentity(PrincipalContext context,IDentityType IDentityType,IDentityType,IDentityValue);}

然后使用扩展类FindByIDentity方法进行搜索

var user = User.FindByIDentity(    DomainContext,"name");

见这Link

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