private static string ReadError(ResponseReader responseReader) { var errorMessage = ""; var errorOperations = responseReader.GetOperationsWithErrors(); foreach (var errorOperation in errorOperations) { foreach (var message in errorOperation.Messages) { errorMessage += message.Text + "; "; } // Check for row errors var rowErrors = errorOperation.GetRowsWithErrors(); foreach (var rowError in rowErrors) { foreach (var rowErrorMessage in rowError.Messages) { errorMessage += rowErrorMessage.Text + "; "; } } } return(errorMessage); }