Public Property ItemData As String()

Dim instance As ComboBoxCellType
Dim value() As String
 
instance.ItemData = value
 
value = instance.ItemData

public string[] ItemData {get; set;}

FarPoint.Win.Spread.CellType.ComboBoxCellType combo = new FarPoint.Win.Spread.CellType.ComboBoxCellType();

private void Form1_Load(object sender, System.EventArgs e)
{        
      string[] cbstr;
      cbstr = new String[] {"One", "Two", "Three"};
      string[] strval;
      strval = new String[] {"1", "2", "3"};
      combo.Items = cbstr;
      combo.ItemData = strval;
      combo.EditorValue = FarPoint.Win.Spread.CellType.EditorValue.ItemData;
      fpSpread1.Sheets[0].Cells[0, 0].CellType = combo;
}

private void fpSpread1_ComboSelChange(object sender, FarPoint.Win.Spread.EditorNotifyEventArgs e)
{
      textBox1.Text = fpSpread1.Sheets[0].Cells[0, 0].Value.ToString();
}

Dim combo As New FarPoint.Win.Spread.CellType.ComboBoxCellType()

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim cbstr As String()
        cbstr = New String() {"One", "Two", "Three"}
        Dim strval As String()
        strval = New String() {"1", "2", "3"}
        combo.Items = cbstr
        combo.ItemData = strval
        combo.EditorValue = FarPoint.Win.Spread.CellType.EditorValue.ItemData
        FpSpread1.Sheets(0).Cells(0, 0).CellType = combo
End Sub


Private Sub FpSpread1_ComboSelChange(ByVal sender As Object, ByVal e As FarPoint.Win.Spread.EditorNotifyEventArgs) Handles
FpSpread1.ComboSelChange
        TextBox1.Text = FpSpread1.Sheets(0).Cells(0, 0).Value
End Sub