I have 20-some forms in my web app that all contain an employee and a client dropdownlist and an employee and client objectDataSource for populating the dropdownlists.  I have to perform the same operation on all forms for the objectDataSource_Selecting events and would like to implement this in a base class inheriting from Page that my individual pages can inherit from.

I put the following code in my class that inherits from Page:
<code>
Namespace myPage
    Public Class myFormPage
        Inherits System.Web.UI.Page

        Public WithEvents odsClient As ObjectDataSource
        Public WithEvents odsEmployee As ObjectDataSource

        Protected Overridable Sub odsClient_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ObjectDataSourceSelectingEventArgs) Handles odsClient.Selecting
            If IsTimedOut() = True Then
                e.Cancel = True
            End If
        End Sub

        Protected Overridable Sub odsEmployee_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ObjectDataSourceSelectingEventArgs) Handles odsEmployee.Selecting
            If IsTimedOut() = True Then
                e.Cancel = True
            End If
        End Sub

    Public Function IsTimedOut() As Boolean
            Try
                If Session.Item("isLoggedIn").ToString = "true" Then
                    Return False
                Else
                    Return True
                End If
            Catch ex As NullReferenceException
                Return True
            End Try
        End Function

    End Class
End Namespace
</code>

When I inherit from this class I get the following warnings:
1) withEvents variable 'odsClient' conflicts with withEvents variable 'odsClient' in the base class 'CorrectErrorsFormPage' and should be declared 'Shadows'
2) withEvents variable 'odsEmployee' conflicts with withEvents variable 'odsEmployee' in the base class 'CorrectErrorsFormPage' and should be declared 'Shadows'

What do I need to do to get rid of these warnings?  It seems to me that I need to change the way that the objectdatasources are declared in the code-beside, but I can't get to the code in the partial class for my code-beside that vis studio generates.

I would really like to implement a lot of common tasks in the myFormPage class because all of the forms share other controls as well.  Ideas? thanks.

Is there a way to do what I'm trying to accomplish?  The event handlers in the base class don't fire when the derived class's odsClient and odsEmployee select their respective data...