USING RADIO BUTTON IN FORMS

Question

FORM 1: CONTAINS 1COMMAND BUTTON & 4 RADIO BUTTON I WANT TO CHECK WHICH RADIO BUTTON IS CHECKED. USING COMMAND BUTTON TRIGGER FOR EG Private Sub btn_next_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_next.Click If opt_Hex Then Dim hex As New frm_hex() Me.Hide() hex.Show() End If If opt_Bin Then Dim bin As New frm_bin() Me.Hide() bin.Show() End If If opt_dec Then Dim dec As New frm_dec() Me.Hide() dec.Show() End If If opt_oct Then Dim oct As New frm_oct() Me.Hide() oct.Show() End If End Sub ABOVE I CHECK THE OPT_DEC IS TRUE OR FALSE AN OK CODE BUT COMPILERS MAKES AN ERROR PLEASE HELP ME