[CLOSED] Form authentication caused a problem with LoadControl and returning field values

  1. #1

    [CLOSED] Form authentication caused a problem with LoadControl and returning field values

    Repost of I question I asked 2.x help

    I'm having problems with the LoadControl method in combination with form authentication.
    When I use form authentication my input fields are not filled with the Request.Form values.

    How do I get this code to work in combination with Form authentication.

    I'm using Ext.NET Pro version

    In my code I'm using a custom control, but I have managed to reproduce the symptoms when dynamically creating a window.

    Request body with <authentication mode="Forms">

    The value is pressent : 'UC_UCrfText=MyValue' but not set in the TextField

    __EVENTTARGET=ctl02&__EVENTARGUMENT=UC_UCbtnWinAcc ept%7Cevent%7CClick&__VIEWSTATE=TCUIPNgzEvuclUQG%2 FYGG1y%2BgwNawPBpfhTltr0LUSsWgz7%2F%2FOvCRyJFQTUWk dtxWFr%2FPVsumi8qyPVpuHb%2BLcRoDRRdD46jwaIQRHp9JhL 6NSTxEPlpcBVcb4aeJ%2B%2F19l0X3jVk0vkNKlWBvN8dD2BKY lGxssI5KR6%2Fxz7XdGJT95kkExcYLNjho15WvD056&hdLoade d=loaded&__VIEWSTATEGENERATOR=F97A37F8&__EVENTVALI DATION=wsYSiEyyiSnsdWRP2gh%2BFb5UeCv44s8hrtcCxm0qA WACf4FEbfHYNpAhd%2FdH74LRhOD6cuXDcb1nM9D5mAABtHX1r l2MvzbySjadYzai1oBGPxCDvVZEetrXqmz4lUVj&UC_UCrfTex t=MyValue

    Response body:
    {script:"Ext.Msg.show({\"title\":\" InputValue = []\",\"buttons\":false});App.UC_UCmyWin.close();" }

    Request body without <authentication mode="Forms">
    The 'UC_UCrfText=MyValue' is pressent and also set in the TextField.

    hdLoaded=loaded&__VIEWSTATEGENERATOR=F97A37F8&__EV ENTTARGET=ctl02&__EVENTARGUMENT=UC_UCbtnWinAccept% 7Cevent%7CClick&UC_UCrfText=MyValue

    Response body:
    {script:"Ext.Msg.show({\"title\":\" InputValue = [MyValue]\",\"buttons\":false});App.UC_UCmyWin.close();" }

    <%@ Page Language="C#" AutoEventWireup="true" %>
    <script runat="server">
    const string controlUrl = @"ExtUserControl.ascx";
    private UserControl currentUC;
    protected void Page_Load(object sender, EventArgs e)
        if (IsLoaded())
    private void LoadUserControl(string code, bool update = false)
        Ext.Net.Panel panel = this.pnlContainer;
        if (update && currentUC != null) 
        currentUC = (UserControl)this.LoadControl(controlUrl);
        currentUC.ID = "UC";
        if (update)
    private bool IsLoaded()
        return !string.IsNullOrEmpty(hdLoaded.Text);
    protected void OnLoadControl(object sender, DirectEventArgs e)
        this.LoadUserControl(controlUrl, true);
        hdLoaded.Text = "loaded";
    <!DOCTYPE html>
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
    <form id="form" runat="server">
        <ext:ResourceManager runat="server" />
        <ext:Hidden runat="server" ID="hdLoaded" />
        <ext:Panel ID="pnlContainer" runat="server" Height="400" Width="400" Title="Containter">
            <ext:Toolbar runat="server">
                <ext:Button ID="btnX" runat="server" Text="Load" OnDirectClick="OnLoadControl" />

    <%@ Control Language="C#" AutoEventWireup="true" %>
    <%@ Register assembly="Ext.Net" namespace="Ext.Net" tagprefix="ext" %>
    <script runat="server">
    private Window _win;
    private TextField _tf;
    protected void Page_Load(object sender, EventArgs e)
    public void Show()
    private string GetId(string id)
        return ID + id;
    private void BuildWindow()
        _win = new Ext.Net.Window { ID = GetId("myWin"), BodyPadding = 5, Border = false, Height = 300, Width = 300, Title = "Enter a value and press ClickMe", Hidden = true, Modal = true };
        Ext.Net.Button button = new Ext.Net.Button { ID = GetId("btnWinAccept"), Text = "ClickMe", Icon = Icon.ApplicationError };
        button.DirectEvents.Click.Event += WinClickAccept;
        _tf = new TextField { ID = GetId("rfText") };
    private void WinClickAccept(object sender, DirectEventArgs e)
        var txtResult = _tf.Text;
        Ext.Net.X.MessageBox.Show(new MessageBoxConfig() { Title = string.Format(" InputValue = [{0}]", txtResult) });
    <ext:Button ID="Button1" runat="server" Text="ClickMe">
            <Click Handler="#{DirectMethods}.Show();" />

    When using this in the web.config I cannot get the Textfield value
    <authentication mode="Forms">
        <forms loginUrl="~/WebForm.aspx" />

    Last edited by Daniil; Jun 08, 2015 at 10:17 AM. Reason: [CLOSED]
  2. #2

    Did you try to recreate your user control in Page_Init instead Page_Load?
  3. #3
    Thank you,

    Moving the code to the Page_Init and removing the check IsLoaded fixed the problem.
    Will need to investigate if I need to check that the control is already loaded.

    Its still strange why changing the authentication mode changes ASP.NET behavior.

    protected void Page_Init(object sender, EventArgs e)
     //   if (IsLoaded())
     //   {
     //   }

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