System.Data.Tests.DataRowCollectionTest2.FindByKey C# (CSharp) Method

        public void FindByKey()
        {
            DataTable table = new DataTable();
            table.Columns.Add("col1", typeof(int));
            table.PrimaryKey = new DataColumn[] { table.Columns[0] };

            table.Rows.Add(new object[] { 1 });
            table.Rows.Add(new object[] { 2 });
            table.Rows.Add(new object[] { 3 });
            table.AcceptChanges();

            Assert.NotNull(table.Rows.Find(new object[] { 1 }));

            table.Rows[0].Delete();
            Assert.Null(table.Rows.Find(new object[] { 1 }));

            table.RejectChanges();
            Assert.NotNull(table.Rows.Find(new object[] { 1 }));
        }