stub not being called by the control

I have a dropdownlist and I created a javascript function to do an eo web essentials callback on the panel it is in
function changeList() {
 eo_Callback("<%=cbpprocess.ClientID %>");
 }

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The code for the button is
<asp:DropDownList ID="ddlUnfilteredList" runat="server" Width="508px" 
Height="22px" onselect="changeList();">

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I load the Dropdownlistbox on page load and it fills
I double click the dropdownlist in design mode to make the stub in vb.net
I add code to the stub
 
Protected Sub ddlUnfilteredList_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ddlUnfilteredList.SelectedIndexChanged
 Call fillMembers()
 End Sub

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When I run the code and select the dropdownlist it does not go to the stub? does anybody know why?

Any help would be greatly appreciated!!!!
R3nder
LVL 6
r3nderAsked:
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CodeCruiserConnect With a Mentor Commented:
Try changing

<asp:DropDownList ID="ddlUnfilteredList" runat="server" Width="508px"
Height="22px" onselect="changeList();">

to

<asp:DropDownList ID="ddlUnfilteredList" runat="server" Width="508px"
Height="22px" onselect="changeList(); return true;">

If it still does not work, try adding AutoPostBack = "true"
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käµfm³d 👽Commented:
I believe you are working with client-side scripting when you use onselect. Have you tried it like this:

<asp:DropDownList ID="ddlUnfilteredList" runat="server" Width="508px" 
Height="22px" OnSelectedIndexChanged="ddlUnfilteredList_SelectedIndexChanged">

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r3nderAuthor Commented:
Autopostback="true" worked
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