Web Forms :: Auto Post-back In Dropdown List Not Working?

Aug 11, 2010

my code as below:

1) I have set EnableViewState = True

<%@ Page Language="VB" MasterPageFile="~/en/en.master" AutoEventWireup="false" CodeFile="product_detail.aspx.vb" Inherits="en_product_detail" EnableViewState="true" %>

2) I have set AutoPostBack & EnableViewState = True

<asp:DropDownList ID="ddl_order" runat="server" AutoPostBack="true" EnableViewState="true">
</asp:DropDownList>

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[Code]....
[Code]....

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[Code]....

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