Load web page within table cell

[afterdark23]

I created a table and I have it set to run as a server control. My reason for doing this is to let the user select a page from a combobox. I have 1 column and 3 rows. The first row has the combobox with the page selections loaded. The second row is where I want the page to load. The third row has a label that will display a error message if something goes wrong.
When I run the program, the combo selection takes me to the correct page, BUT, it is not loaded into the table row. The page is loaded as a new page. How do I get the page to be loaded inside the table row?

Here is what I have:

visual basic code:
Private Sub cboselectpage_SelectedIndexChanged
(ByVal sender As System.Object, ByVal e As System.EventArgs)
Handles cboSelectPage.SelectedIndexChanged

If cboSelectPage.SelectedIndex = 0 Then
tblMain.Rows(1).Page.Response.Redirect("Attendance.aspx")
ElseIf cboSelectPage.SelectedIndex = 1 Then
tblMain.Rows(1).Page.Response.Redirect("Profile_Report.aspx")
ElseIf cboSelectPage.SelectedIndex = 2 Then
tblMain.Rows(1).Page.Response.Redirect("Area_Progress.aspx")
ElseIf cboSelectPage.SelectedIndex = 3 Then
tblMain.Rows(1).Page.Response.Redirect("PYP_Inquiry.aspx")

'Check for proper role. If user has role, add to list in Page_Load
ElseIf cboSelectPage.SelectedIndex = 4 Then
tblMain.Rows(1).Page.Response.Redirect("Enter_PYP.aspx")
ElseIf cboSelectPage.SelectedIndex = 5 Then
tblMain.Rows(1).Page.Response.Redirect("Edit_PYP.aspx")
End If
End Sub

[the tree]

Why not use includes?
http://www.codeproject.com/asp/ASP_Dynamic_Include.asp

[afterdark23]

excellent! thanks!!!!

[Memnoch]

Do it with a UserControl instead.

[afterdark23]

I did a user control.

On one of my pages, I have a datagrid inside a table cell. I load the datagrid information fine and I can select a row on the first page. When I go to change the page it does nothing. I stepped through the code and when I click on a different page, the program goes to the usercontrol page_load event. The program doesn't go to the PageIndexChanged event. Anyone know how to fix this?

Thanks