Public Sub AddUnboundRows( _
   ByVal row As Integer, _
   ByVal count As Integer _
) 

Dim instance As SheetView
Dim row As Integer
Dim count As Integer
 
instance.AddUnboundRows(row, count)

public void AddUnboundRows( 
   int row,
   int count
)

string conStr = "Provider=Microsoft.JET.OLEDB.4.0;data source= " + Application.StartupPath + "\\Patients2000.mdb";
string sqlStr = "SELECT * FROM Patients"; 
System.Data.OleDb.OleDbConnection conn  = new System.Data.OleDb.OleDbConnection(conStr); 
DataSet ds = new DataSet(); 
System.Data.OleDb.OleDbDataAdapter da = new System.Data.OleDb.OleDbDataAdapter(sqlStr, conn);
fpSpread1.ActiveSheet.DataAutoSizeColumns = false; 
fpSpread1.ActiveSheet.DataMember = "Patients"; 
da.Fill(ds); 
fpSpread1.ActiveSheet.DataSource = ds;
DialogResult dlg;
dlg = MessageBox.Show("Do you want to add a row to the data source?", "AddRowToDataSource", MessageBoxButtons.YesNo);
if (dlg == DialogResult.Yes)
{
    fpSpread1.ActiveSheet.AddUnboundRows(1, 2);
    fpSpread1.ActiveSheet.SetValue(2, 0, "Daly");
    fpSpread1.ActiveSheet.SetValue(2, 1, "John");
    fpSpread1.ActiveSheet.SetValue(2, 2, "111390");
    fpSpread1.ActiveSheet.SetValue(2, 3, "12 Courtney Place");
    fpSpread1.ActiveSheet.AddRowToDataSource(2, true);
}

Dim conStr As String = "Provider=Microsoft.JET.OLEDB.4.0;data source= " & Application.StartupPath & "\Patients2000.mdb"
Dim sqlStr As String = "SELECT * FROM Patients"
Dim conn As New System.Data.OleDb.OleDbConnection(conStr)
Dim ds As DataSet = New DataSet()
Dim da As New System.Data.OleDb.OleDbDataAdapter(sqlStr, conn)
FpSpread1.ActiveSheet.DataAutoHeadings = False
FpSpread1.ActiveSheet.DataMember = "Patients"
da.Fill(ds)
FpSpread1.ActiveSheet.DataSource = ds
Dim dlg As DialogResult
dlg = MessageBox.Show("Do you want to add a row to the data source?", "AddRowToDataSource", MessageBoxButtons.YesNo)
If dlg = DialogResult.Yes Then
    FpSpread1.ActiveSheet.AddUnboundRows(1, 2)
    FpSpread1.ActiveSheet.SetValue(2, 0, "Daly")
    FpSpread1.ActiveSheet.SetValue(2, 1, "John")
    FpSpread1.ActiveSheet.SetValue(2, 2, "111390")
    FpSpread1.ActiveSheet.SetValue(2, 3, "12 Courtney Place")
    FpSpread1.ActiveSheet.AddRowToDataSource(2, True)
End If