System.Data.Tests.DataColumnCollectionTest2.Indexer2 C# (CSharp) Метод

        public void Indexer2()
        {
            DataTable dt = DataProvider.CreateParentDataTable();
            DataColumnCollection cols = dt.Columns;
            DataColumn col;

            col = cols["ParentId"];
            Assert.NotNull(col);
            Assert.Equal("ParentId", col.ColumnName);

            col = cols["parentiD"];
            Assert.NotNull(col);
            Assert.Equal("ParentId", col.ColumnName);

            col = cols["DoesNotExist"];
            Assert.Null(col);
        }