Hi,

had some strange behaviour after upgrading to 4.11.3. in several user controls, all they have in common is that data is read on postback depending on the user selection.

I created a very simple user control to demonstrate the problem.

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="demo.ascx.cs" Inherits="mk.webisweb.usercontrols.demo" %>
<asp:Literal ID="Literal1" runat="server"></asp:Literal>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True">
    <asp:ListItem Selected="True" Value="1">Val1</asp:ListItem>
    <asp:ListItem Value="2">Val2</asp:ListItem>
    <asp:ListItem Value="3">Val3</asp:ListItem>
</asp:DropDownList>

and the code behind

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace mk.webisweb.usercontrols
{
    public partial class demo : System.Web.UI.UserControl
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Literal1.Text = string.Format("selected: {0}", DropDownList1.SelectedValue);
        }
    }
}

this control does nothing more than to show the selected value when the drop down is changed (AutoPostBack="True")

works perfect in.
umbraco v 4.9.1 (Assembly version: 1.0.4679.40364)

But using this control in
umbraco v 4.11.3 (Assembly version: 1.0.4760.34993)
does not work anymore, the displayed value stays at 1, regardless of the selection.

What could be the reason for that and how to fix it?

Thanks Christian