System.Data.DataSet ds = new System.Data.DataSet();
DataTable name;
DataTable city;
name = ds.Tables.Add("Customers");
name.Columns.AddRange(new DataColumn[] {new DataColumn("LastName", typeof(string)), new DataColumn("FirstName", typeof(string)),
new DataColumn("ID", typeof(Int32))});
name.Rows.Add(new object[] {"Fielding", "William", 0});
name.Rows.Add(new object[] {"Williams", "Arthur", 1});
name.Rows.Add(new object[] {"Zuchini", "Theodore", 2});
city = ds.Tables.Add("City/State");
city.Columns.AddRange(new DataColumn[] {new DataColumn("City", typeof(string)), new DataColumn("Owner", typeof(Int32)), new
DataColumn("State", typeof(string))});
city.Rows.Add(new object[] {"Atlanta", 0, "Georgia"});
city.Rows.Add(new object[] {"Boston", 1, "Mass."});
city.Rows.Add(new object[] {"Tampa", 2, "Fla."});
ds.Relations.Add("City/State", name.Columns["ID"], city.Columns["Owner"]);
fpSpread1.ActiveSheet.DataSource = ds;
fpSpread1.ActiveSheet.DataMember = "Customers";
fpSpread1.ActiveSheet.SetColumnWidth(2, 150);
bool b;
fpSpread1.ActiveSheet.ExpandRow(1, true);
b = fpSpread1.ActiveSheet.IsRowExpanded(1);
listBox1.Items.Add(b.ToString());