public void DmTable_RejectChanges()
{
tbl.AcceptChanges();
var dmRow = tbl.Rows[0];
dmRow["CustomerID"] = 2;
tbl.RejectChanges();
Assert.Equal(1, dmRow["CustomerID"]);
Assert.Equal(DmRowState.Unchanged, dmRow.RowState);
// Try to reject changes after creating a table, with no acceptchanges
var tbl3 = new DmTable();
var id3 = new DmColumn <Int32>("ServiceTicketID");
id3.IsAutoIncrement = true;
tbl3.Columns.Add(id3);
var key3 = new DmKey(new DmColumn[] { id3 });
tbl3.PrimaryKey = key3;
tbl3.Columns.Add(new DmColumn <string>("Title"));
var st3 = tbl3.NewRow();
st3["Title"] = "Titre AER";
tbl3.Rows.Add(st3);
// SInce we didn't AcceptChanges, raise an error
Assert.Throws <Exception>(() => tbl3.RejectChanges());
}