View Full Version : [CLOSED] HttpException was unhandled by user code: The control with ID 'UC_1752412531_bntOk' not found

Feb 15, 2012, 12:47 PM

I load my usercontrols in my aspx page with ext:UserControlLoader.

My usercontrol contains buttons Ok and Cancel with directevents.
When i click in button ok, for exempla, i get an error.

HttpException was unhandled by user code: The control with ID 'UC_1752412531_bntOk' not found

seems to me that all controls that have some procedure in codebehind get this error.

Follow below the example to reproduce this problem.

Thanks for any help.


<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="test4.aspx.vb" Inherits="SuperaWeb.test4" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

Public Shared myRnd As New System.Random

Protected Sub LoadUserControl(sender As Object, e As DirectEventArgs)

Dim ucl As UserControlLoader = New UserControlLoader()

ucl.Path = cmbUC.SelectedItem.Text
ucl.UserControlID = "UC_" & CStr(myRnd.Next(Integer.MaxValue))


DirectCast(ucl.UserControls(0), SuperaWeb.uc4).Start()

End Sub


<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<ext:ResourceManager ID="ResourceManager1" runat="server" />
<form id="form1" runat="server">
<ext:ComboBox runat="server" ID="cmbUC">
<ext:ListItem Text="UC4.ascx" Value="UC4.ascx" />
<ext:ListItem Text="UC4.ascx" Value="UC4.ascx" />
<ext:Button ID="Button1" runat="server" Text="Load UserControl" OnDirectClick="LoadUserControl" />


<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="uc4.ascx.vb" Inherits="SuperaWeb.uc4" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>

<script runat="server">

Protected Sub Cancel_Click(sender As Object, e As DirectEventArgs)
Dim mb As Ext.Net.MessageBox = New Ext.Net.MessageBox
mb.Alert("cancel click", "cancel click")
End Sub

Protected Sub Ok_Click(sender As Object, e As DirectEventArgs)
Dim mb As Ext.Net.MessageBox = New Ext.Net.MessageBox
mb.Alert("ok click", "ok click")
End Sub

Protected Sub SearchCep(sender As Object, e As DirectEventArgs)
Dim mb As Ext.Net.MessageBox = New Ext.Net.MessageBox
mb.Alert("trigger clicked", "trigger clicked")
End Sub


Title="Cadastro de Empresas"
<ext:Panel ID="pane3" runat="server" BodyStyle="background-color: #f9f9f9" BodyPadding="6" Layout="FitLayout" Border="true" Flex="1">
<ext:Toolbar ID="tb3" runat="server">
<ext:Button ID="btnAdd" runat="server" Icon="ApplicationAdd" Text="Add"
ToolTip="Adicionar registro" Disabled="true" />
<ext:Button ID="btnEdit" runat="server" Icon="ApplicationEdit" Text="Edit"
ToolTip="Editar registro selecionado" Disabled="true" />
<ext:Button ID="btnDelete" runat="server" Icon="ApplicationDelete"
Text="Excluir" ToolTip="Deletar registro(s) selecionados" Disabled="true" />
<ext:Button ID="btnFind" runat="server" Icon="Find" Text="Find"
ToolTip="Localizar registro" Disabled="true" />
<ext:ToolbarSeparator ID="ctl133" runat="server" />
<ext:Button ID="btnPrint" runat="server" Icon="Printer" Text="Print"
ToolTip="Imprimir registros" Disabled="true" />
<ext:Button ID="btnPrintPreview" runat="server" Icon="PrinterGo"
Text="Preview" ToolTip="Visualizar impressão registros" Disabled="true" />
<ext:ToolbarSeparator ID="ToolbarSeparator1" runat="server" />
<ext:SplitButton ID="btnExport" runat="server" Icon="PageExcel" Text="Export"
ToolTip="Export records to..." Disabled="true">
<ext:Menu runat="server" ID="ctl394">
<ext:MenuItem ID="mnuExportToExcel" runat="server" icon="PageExcel"
Text="Excel" />
<ext:MenuItem ID="mnuExportToPdf" runat="server" icon="PageWhiteAcrobat"
Text="PDF" />
<ext:MenuItem ID="mnuExportToXml" runat="server" icon="PageCode" Text="Xml" />
<ext:MenuItem ID="mnuExportToText" runat="server" icon="PageWhite"
Text="Text" />
<ext:MenuItem ID="mnuExportToHtml" runat="server" icon="Html" Text="Html" />
<ext:ToolbarFill ID="ctl402" />
<ext:ComboBox ID="cmbQueries" runat="server" FieldLabel="Consultas"
LabelWidth="60" Disabled="true">
<ext:TextField runat="server" ID="txtName" FieldLabel="Nome" Width="300" />
<ext:TriggerField runat="server" ID="txtCep" FieldLabel="Cep" Width="300">
<ext:FieldTrigger Icon="Search"/>
<TriggerClick OnEvent="SearchCep" />
<ext:Button runat="server" ID="btnOk" Text="Ok" OnDirectClick="Ok_Click" />
<ext:Button runat="server" ID="btnCancel" Text="Cancel" OnDirectClick="Cancel_Click" />

UC4.ascx Code Behind

Public Class uc4
Inherits System.Web.UI.UserControl

Public Sub Start()
End Sub

End Class

Feb 15, 2012, 1:22 PM

Please follow:

Feb 16, 2012, 5:33 PM
Hi Daniil...

Thanks for your reply... Now I understand better the life-cycle of usercontrols.
Unfortunately, I could not solve the problem described above.

So, I changed how I create my Form Details.
1 - I inserted an ext: Window on main page.
2 - I am creating my Form Details like asp pages (aspx)
3 - I'm loading my Form Detail (aspx) with tag Loader of window.

<ext:Window ID="OrderDetailsWindow" runat="server" Icon="ApplicationFormEdit" Resizable="false" Hidden="true" Modal="true" Constrain="true">
<Loader AutoLoad="true" Url="Test6.aspx" Mode="Frame" TriggerEvent="show" ReloadOnEvent="true">
<LoadMask Msg="Loading customer" ShowMask="true" />
<ext:Parameter Name="orderID" Value="" Mode="Value" />

4 - In main page, I create a directevent to close de window.

Public Sub CloseWindow(isCancel As Boolean)
If Not isCancel Then
'refresh grid
End If
End Sub

5 - In my Form Detail, the buttons Ok and Cancel call the directevent CloseWindow of parent page.

Protected Sub OkClick(sender As Object, e As DirectEventArgs)
Ext.Net.X.Js.Call("parent.Ext.net.DirectMethods.CloseWindow", False)
End Sub

It's working very well and will solve all my problems.
I just wanted a way that ext: Window resizes itself to fit the content (the Form Detail aspx)
Is there a way to automatically resize the window as the content?
If no, I thought about making a directmethod in main page, (window_resize(width, height)) and class this directmethod in page_load of my Form Detail.

Thanks for any help!

Feb 16, 2012, 7:03 PM
Ok, thanks for the update.

Could you please start a new forum thread (since the initial question has been answered)?

Feb 16, 2012, 7:06 PM
Ok, no problem!

Thanks for your help.