public string SearchDepartmentByParentDepartment(string parentDepartmentID, string conditionXml, bool recursive) { if (!header.VerifyCredentials(header.UserName, header.Password, header.Type)) { return(string.Empty); } Guid gParentDepartmentID = (Guid)XmlSerializer.Deserialize(parentDepartmentID); return(XmlSerializer.Serialize(OrganizationPublicHelper.SearchDepartmentByParentDepartment(gParentDepartmentID, conditionXml, recursive))); }