System.Data.DataTable.ConvertToRowError C# (CSharp) Method

        private void ConvertToRowError(int rowIndex, Hashtable rowErrors, Hashtable colErrors)
        {
            Debug.Assert(Rows.Count > rowIndex);
            Debug.Assert(rowErrors != null);
            Debug.Assert(colErrors != null);

            DataRow row = Rows[rowIndex];

            if (rowErrors.ContainsKey(rowIndex))
            {
                row.RowError = (string)rowErrors[rowIndex];
            }
            if (colErrors.ContainsKey(rowIndex))
            {
                ArrayList list = (ArrayList)colErrors[rowIndex];
                int[] columnsInError = (int[])list[0];
                string[] columnErrors = (string[])list[1];
                Debug.Assert(columnsInError.Length == columnErrors.Length);
                for (int i = 0; i < columnsInError.Length; i++)
                {
                    row.SetColumnError(columnsInError[i], columnErrors[i]);
                }
            }
        }