System.Data.Tests.DataViewTest2.FindRows_ByKey C# (CSharp) Method

        public void FindRows_ByKey()
        {
            DataRowView[] dvArr = null;

            //create the source datatable
            DataTable dt = DataProvider.CreateChildDataTable();

            //create the dataview for the table
            DataView dv = new DataView(dt);

            // FindRows ,no sort - exception
            Assert.Throws<ArgumentException>(() =>
            {
                dvArr = dv.FindRows(3);
            });

            dv.Sort = "String1";
            // Find = wrong sort, can not find
            dvArr = dv.FindRows(3);
            Assert.Equal(0, dvArr.Length);

            dv.Sort = "ChildId";

            //get expected results
            DataRow[] drExpected = dt.Select("ChildId=3");

            // FindRows - check count
            dvArr = dv.FindRows(3);
            Assert.Equal(drExpected.Length, dvArr.Length);

            // FindRows - check data

            //check that result is ok
            bool Succeed = true;
            for (int i = 0; i < dvArr.Length; i++)
            {
                Succeed = (int)dvArr[i]["ChildId"] == (int)drExpected[i]["ChildId"];
                if (!Succeed) break;
            }
            Assert.Equal(true, Succeed);
        }