System.Data.Tests.DataRelationTest2.ParentKeyConstraint C# (CSharp) Method

        public void ParentKeyConstraint()
        {
            var ds = new DataSet();
            DataTable dtChild = DataProvider.CreateChildDataTable();
            DataTable dtParent = DataProvider.CreateParentDataTable();
            ds.Tables.Add(dtParent);
            ds.Tables.Add(dtChild);

            DataRelation dRel;
            dRel = new DataRelation("MyRelation", dtParent.Columns[0], dtChild.Columns[0]);
            ds.Relations.Add(dRel);

            // ChildKeyConstraint 1
            Assert.Equal(dtParent.Constraints[0], dRel.ParentKeyConstraint);
        }