Thanks Viv

but i am adding no of buttons in my form through user control custom property like this
Private nbtn, i As Integer
Private oradio As New System.Windows.Forms.RadioButton
Dim cntrx As Integer = Me.Location.X
Dim octr As Control


Property Buottos() As Integer
Get
Return nbtn
End Get
Set(ByVal value As Integer)
nbtn = value



Me.Controls.Clear()
For i = 1 To nbtn
Dim btn1 As New System.Windows.Forms.RadioButton

Me.Controls.Add(btn1)
btn1.Text = "Radiobtn" + i.ToString.Trim
btn1.AutoSize = True
btn1.Location = New System.Drawing.Point(i * 80, 3)

'oradio.Name = "rb" + i.ToString.Trim
Next

End Set
End Property