public static void SetExcludedSystemEntities(List <string> lst, string categoryName) { var upValue = PerferenceUtility.GetUserPreferenceByKey(ActivityStreamExcludedEntities, categoryName, categoryName); var upkId = PerferenceUtility.GetUserPreferenceKey(ActivityStreamExcludedEntities); var data = new UserPreferenceSelectedItemDataModel(); data.UserPreferenceKeyId = upkId; UserPreferenceSelectedItemDataManager.Delete(data, SessionVariables.RequestProfile); foreach (var strValue in lst) { data = new UserPreferenceSelectedItemDataModel(); data.UserPreferenceKeyId = upkId; data.ApplicationUserId = SessionVariables.RequestProfile.AuditId; data.ParentKey = upValue; data.Value = strValue; data.SortOrder = 1; UserPreferenceSelectedItemDataManager.Create(data, SessionVariables.RequestProfile); } }