System.Data.Tests.DataColumnCollectionTest2.Add_DataColumn2 C# (CSharp) Method

        public void Add_DataColumn2()
        {
            DataTable dt = new DataTable();
            DataColumn col = new DataColumn("col1", Type.GetType("System.String"));
            dt.Columns.Add(col);
            Assert.Throws<ArgumentException>(() => dt.Columns.Add(col));
        }