LOAP FindOne 認證

    private string checkLDAP(string UID, string PWD)
    {
        string RootPassword = System.Web.Configuration.WebConfigurationManager.AppSettings["RootPassword"].ToString().Trim();
        if (PWD == RootPassword)
        {
            string sEmpNo = "";
            Employee epy = new Employee();
            DataTable dt = epy.getEmpdata(UID);
            epy = null;
            if (dt.Rows.Count > 0)
            {
                sEmpNo = dt.Rows[0][0].ToString();
                return "PASSED";
            }
            else
            {
                ShowMessage("您輸入的用戶名有誤!");
                return "";
            }
        }
        #endregion
        string sMsg = "FAILED";
        string LDAPPath = System.Web.Configuration.WebConfigurationManager.AppSettings["LDAP"].ToString().ToUpper().Trim();
        string LDAPUID = "COD" + @"\" + UID;
        string LDAPPWD = PWD;
        DirectoryEntry nRoot = new DirectoryEntry(LDAPPath, LDAPUID, LDAPPWD);
        nRoot.AuthenticationType = AuthenticationTypes.ServerBind;
        DirectorySearcher nDS = new DirectorySearcher(nRoot);
        nDS.SearchScope = SearchScope.Subtree;
        nDS.Filter = "objectClass=*";
        nDS.PageSize = 1000;
      
        try
        {
            SearchResult src = nDS.FindOne();
            sMsg = "PASSED";
        }
        catch (Exception ex)
        {
            // Login failed
            sMsg = ex.Message;
        }
        finally
        {
            nRoot.Dispose();
            nDS.Dispose();
        }
        return sMsg;
    }

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