If Else Statement Using DropdownList

How do i write "if else" statement using both dropdownlist and will display the result on a textBox? This is half part code of saveButton

err_no = db.ExecuteInsert("INSERT INTO EFolder (No, working, exp, points) VALUES("'" & db.sqlstr(txtworking.SelectedValue),
           "'" & db.sqlstr(txtexpe.SelectedValue),
           "'" & db.sqlstr(txtpoints.Text),
           Session("CnnStr").ToString)

here im trying do write the if else statement

    Protected Function Mix() As Long
            Dim working As Boolean
            Dim exp As String

            working = txtworking.SelectedValue
            exp = txtexp.SelectedValue

            If (txtworking.SelectedValue.text) = "Y" and (txtexp.SelectedValue.Text) = 1

 Then
            txtpoints.Text = "5"

        End If
    End Function