System.Data.Tests.DataViewTest.RowStateFilter_2 C# (CSharp) Метод

        public void RowStateFilter_2()
        {
            DataSet dataset = new DataSet("new");
            DataTable dt = new DataTable("table1");
            dataset.Tables.Add(dt);
            dt.Columns.Add("col1");
            dt.Columns.Add("col2");
            dt.Rows.Add(new object[] { 1, 1 });
            dt.Rows.Add(new object[] { 1, 2 });
            dt.Rows.Add(new object[] { 1, 3 });
            dataset.AcceptChanges();

            DataView dataView = new DataView(dataset.Tables[0]);

            // 'new'  table in this sample contains 6 records
            dataView.AllowEdit = true;
            dataView.AllowDelete = true;
            string v;

            // Editing the row
            dataView[0]["col1"] = -1;
            dataView.RowStateFilter = DataViewRowState.ModifiedOriginal;
            v = dataView[0][0].ToString();
            Assert.Equal(1, dataView.Count);
            Assert.Equal("1", v);

            // Deleting the row
            dataView.Delete(0);
            dataView.RowStateFilter = DataViewRowState.Deleted;

            v = dataView[0][0].ToString();
            Assert.Equal(1, dataView.Count);
            Assert.Equal("1", v);
        }