//[Test] public void ToStringTest() { DataRelationCollection drcol = _dataset.Relations; DataRelation dr1 = new DataRelation("CustOrder" , _dataset.Tables ["Customer"].Columns ["custid"] , _dataset.Tables ["Order"].Columns ["custid"]); drcol.Add(dr1); Assert.That(drcol.ToString(), Is.EqualTo("System.Data.DataRelationCollection"), "test#1"); Console.WriteLine(drcol.ToString()); }