System.Data.Tests.DataTableReaderTest.AccessAfterClosedTest C# (CSharp) Method

        public void AccessAfterClosedTest()
        {
            Assert.Throws<InvalidOperationException>(() =>
            {
                DataTableReader reader = new DataTableReader(_dt);
                try
                {
                    reader.Read();
                    reader.Close();
                    int i = (int)reader[0];
                    i++; // to supress warning
                }
                finally
                {
                    if (reader != null && !reader.IsClosed)
                        reader.Close();
                }
            });
        }