GridView update not working in mySQL via ASP.NET 2.0

Hello,
I am trying to update a mySQL database via ASP.NET 2.0.  The update never saves the new values.  I am using an ENUM('True','False') datatype in the mySQL table for the rejectflag variable.  Any help would be appreciated!!!

Here is my code:

'script
<asp:ObjectDataSource ID="ObjectDataSource1" runat="server" TypeName="cEvaluateSRBLL" SelectMethod="SelectSR"
     UpdateMethod="UpdateSR" OldValuesParameterFormatString="original_{0}">
                   <UpdateParameters>
                    <asp:Parameter Type="string" Direction="Input" Name="rejectflag" />
                    <asp:Parameter Type="string" Direction="Input" Name="newcomments" />
                    <asp:Parameter Type="Int32" Name="original_sid" />
                    <asp:ProfileParameter Type="Int32" PropertyName="UID" Name="original_uid" />
                   </UpdateParameters>                
                   <SelectParameters>
                   <asp:ProfileParameter Name="uid" PropertyName="UID" Type="Int32" />
                   </SelectParameters>
    </asp:ObjectDataSource>

.....
'vb object
   Public Function UpdateSR(ByVal rejectflag As String, ByVal newcomments As String, _
                     ByVal original_sid As Integer, ByVal original_uid As Integer) As Boolean

        Dim myComm As OdbcCommand = New OdbcCommand()
        Dim myConn As OdbcConnection = New OdbcConnection()

        myConn.ConnectionString = ConfigurationManager.ConnectionStrings("ConnectionString").ToString()
        myConn.Open()
        myComm.Connection = myConn
        myComm.CommandType = Data.CommandType.Text
        myComm.CommandText = "UPDATE approval SET flag = 'O', rejectflag = '" & rejectflag & "', comments = '" & newcomments & "' WHERE sid = " & original_sid & " AND uid = " & original_uid

        myComm.ExecuteNonQuery()

        'clean up
        myConn.Close()
        myConn = Nothing
        myComm = Nothing
        GC.Collect()

        Return True
    End Function