public void CopySelectionIntoClipBoard()
{
var table = new DataTable();
table.Columns.Add("column1", typeof(string));
table.Columns.Add("column2", typeof(string));
table.Rows.Add(new object[] { "1", "2" });
table.Rows.Add(new object[] { "3", "4" });
var tableView = new TableView { Data = table };
//select two rows
tableView.SelectCells(0, 0, 1, 1);
//action! copy selection to clipboard
//tableView.CopySelection
tableView.CopySelectionToClipboard();
Assert.AreEqual("1\t2\r\n3\t4\r\n", Clipboard.GetText());
}