Passing variables with User Controls 1

[MikeMCSD]

I'm trying to get 2 variables to "refresh" on the top part of the
page when a function is called that updates them.

I want to keep the "total number of items" and "total amount" for the shopping cart
updated on the Default.aspx page to the current values whenever they are changed.

On the Page_Load of Default.aspx, I load different user controls into the Body like:

Dim control As Control
control = Page.LoadControl("UserControls/selected_page_here.ascx")
pageContentsCell.Controls.Add(control)

items.Text = Session("items")
total.Text = Session("total")

in .aspx:
<td id="pageContentsCell" runat="server">

<asp:Label Runat=server ID="total"></asp:Label>
<asp:Label Runat=server ID="items"></asp:Label>


The problem is when "Add to Cart" is clicked, the variables are not updated
(I don't display the shopping cart when Add to Cart is clicked):

Private Sub Add to Cart

Session("items") = cartHead.Total_Items
Session("total") = String.Format("{0:c}", cartHead.Total_Amount)

End Sub

But if Add to Cart is clicked a second time, the variables update - but with the
values of the first time it was clicked.
I'm guessing it is something with the post back.

Any ideas?
Thanks

 

[DaZZleD]

what have you written in the onClick event of the Add to Cart button?

--------------------------
"two wrongs don't make a right, but three lefts do" - the unknown sage

 

[MikeMCSD]

what have you written in the onClick event of the Add to Cart button? "
I don't have an onClick event for the button,
the button is in a DataList and I'm using:

Private Sub list_ItemCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataListCommandEventArgs) Handles list.ItemCommand

after I add the item to the cart, I do this:

Session("items") = cartHead.items
Session("total") = String.Format("{0:c}", cartHead.amt)

but these variables aren't updated in Default.aspx, which is the page the user control is contained in.

 

[MikeMCSD]

I found a solution by added
Response.Redirect(Request.RawUrl):

Private Sub Add to Cart
.
.
Session("items") = cartHead.Total_Items
Session("total") = String.Format("{0:c}", cartHead.amt)

Response.Redirect(Request.RawUrl)

End Sub

This reloads the page and forces another Page_Load and resets the variable to the current values.