Public Overrides Function Format( _
   ByVal o As Object _
) As String

Dim instance As ComboBoxCellType
Dim o As Object
Dim value As String
 
value = instance.Format(o)

public override string Format( 
   object o
)

<Serializable()>
Public Class myCombo
Inherits FarPoint.Web.Spread.ComboBoxCellType

Sub New()
MyBase.New(New String(){"One","Two","Three"},New String(){"1","2","3"})
End Sub

Public Overrides Function Format(ByVal o As Object)As String
Return MyBase.Format(o)
End Function

Public Overrides Function GetEditorControl(ByVal id As String,ByVal tc As TableCell,ByVal style As FarPoint.Web.Spread.Appearance,ByVal margin As FarPoint.Web.Spread.Inset,ByVal v As Object,ByVal ul As Boolean)As System.Web.UI.Control
Return MyBase.GetEditorControl(id,tc,style,margin,v,ul)
End Function

Public Overrides Function PaintCell(ByVal id As String,ByVal tc As TableCell,ByVal style As FarPoint.Web.Spread.Appearance,ByVal margin As FarPoint.Web.Spread.Inset,ByVal v As Object,ByVal ul As Boolean)As System.Web.UI.Control
Return MyBase.PaintCell(id,tc,style,margin,v,ul)
End Function

Public Overrides Function Parse(ByVal s As String)As Object
Return MyBase.Parse(s)
End Function

Public Overrides ReadOnly PropertyEditorClientScriptUrl()As String
Get
Return"listboxeditor.htc"
End Get
End Property

End Class

Private Sub Page_Load(ByVal sender As System.Object,ByVal e As System.EventArgs)Handles MyBase.Load
Dim cb As New myCombo()
FpSpread1.ActiveSheetView.Cells(0,0).CellType=cb
End Sub

[Serializable()]
class myCombo:FarPoint.Web.Spread.ComboBoxCellType
{
ArrayList items=new ArrayList();
ArrayList values=new ArrayList();

public myCombo(string[]items):base(items)
{
for(int i=0;i<items.Length;i++)
{
this.items.Add(items[i]);
}
}

public override string Format(object o)
{
return base.Format(o);
}

public override ControlGetEditorControl(string id,TableCell tc,FarPoint.Web.Spread.Appearance style,FarPoint.Web.Spread.Inset margin,object v,bool ul)
{
returnbase.GetEditorControl(id,tc,style,margin,v,ul);
}

public override ControlPaintCell(string id,TableCell tc,FarPoint.Web.Spread.Appearance style,FarPoint.Web.Spread.Inset margin,object v,bool ul)
{
return base.PaintCell(id,tc,style,margin,v,ul);
}

public override object Parse(string s)
{
return base.Parse(s);
}

public override string EditorClientScriptUrl{get{return"listboxeditor.htc";}}
}

private void Page_Load(object sender,System.EventArgs e)
{
myCombo cb=new myCombo(new string[]{"One","Two","Three"});
FpSpread1.ActiveSheetView.Cells[0,0].CellType=cb;
}