Home / Community & Support / Developer Productivity Tools Forums / ASP.NET AJAX > ToolTip > Load on demand issues

• Joaquín

  Posted on Jan 15, 2012 (permalink)

  Im trying to set up a tooltip which is updated to show which fields of the form the user must complete before being allowed to continue. I have several issues about it (because I'm a newbie asp programmer), but the worst is that after showing the tooltip a few times (hovering the mouse over the hotspot), I get the following error:
  
  Error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.
  Details: Error parsing near 'Telerik.Web.UI    20'.
  
  I have tried everyting I have been able to think on to solve it, with no success. I have not a single clue about that is wrong. Could you please tell me what is wrong? This is the code (in the master page there is only static content like images):
  
  CreateProject.aspx
  

  <%@ Page Title="" Language="VB" MasterPageFile="~/Resources/MasterPages/Clients.master" AutoEventWireup="false" CodeFile="CreateProject.aspx.vb" Inherits="Web_Clients_CreateProject" %>

  <%@ Register assembly="Telerik.Web.UI" namespace="Telerik.Web.UI" tagprefix="telerik" %>

   

  <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">

   

      <style type="text/css">

          .style1

          {

              width: 100%;

          }

          .style3

          {

              width: 250px;

          }

   

          .style4

          {

              border: 1px solid #abc1de;

              padding: 1px 4px;

              width: 100%;

          }

           

          .style7

          {

              width: 180px;

          }

   

          .style8

          {

              width: 96px;

          }

   

          .style9

          {

              width: 195px;

          }

   

          .style10

          {

              width: 140px;

          }

          .style11

          {

              width: 127px;

          }

      </style>

   

  </asp:Content>

   

  <asp:Content ID="Content2" ContentPlaceHolderID="cphHeaderText" Runat="Server">

      Create Project

  </asp:Content>

   

  <asp:Content ID="Content3" ContentPlaceHolderID="cphMain" Runat="Server">

   

      <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

          <AjaxSettings>

              <telerik:AjaxSetting AjaxControlID="chkPONA">

                  <UpdatedControls>

                      <telerik:AjaxUpdatedControl ControlID="txtRadPO" />

                  </UpdatedControls>

              </telerik:AjaxSetting>

              <telerik:AjaxSetting AjaxControlID="lstRadSouceLangLista">

                  <UpdatedControls>

                      <telerik:AjaxUpdatedControl ControlID="lstRadSouceLangSelected" />

                  </UpdatedControls>

              </telerik:AjaxSetting>

              <telerik:AjaxSetting AjaxControlID="lstRadSouceLangSelected">

                  <UpdatedControls>

                      <telerik:AjaxUpdatedControl ControlID="lstRadSouceLangLista" />

                  </UpdatedControls>

              </telerik:AjaxSetting>

              <telerik:AjaxSetting AjaxControlID="cmbRadTTools">

                  <UpdatedControls>

                      <telerik:AjaxUpdatedControl ControlID="cmbRadTTools" />

                      <telerik:AjaxUpdatedControl ControlID="div_OtherTTool" />

                  </UpdatedControls>

              </telerik:AjaxSetting>

              <telerik:AjaxSetting AjaxControlID="chkTranslateOther">

                  <UpdatedControls>

                      <telerik:AjaxUpdatedControl ControlID="txtRadTranslateOther" />

                  </UpdatedControls>

              </telerik:AjaxSetting>

              <telerik:AjaxSetting AjaxControlID="chkDeliveryOther">

                  <UpdatedControls>

                      <telerik:AjaxUpdatedControl ControlID="txtRadDeliveryOther" />

                  </UpdatedControls>

              </telerik:AjaxSetting>

          </AjaxSettings>

      </telerik:RadAjaxManager>

   

   

       

       

   

      <div id="divProjectName" class="TableTextoMedio" style="float:left ">

           

          <table class="style1">

              <tr>

                  <td class="style9">

                      Project Name:<div id="prueba"></div></td>

                  <td>

                      <telerik:RadTextBox ID="txtRadProjectName" Runat="server" EmptyMessage="Project Name" LabelWidth="" Width="560px">

                          <EmptyMessageStyle Font-Italic="False" />

                      </telerik:RadTextBox>

                  </td>

              </tr>

              <tr>

                  <td class="style9">

                          Targeted Market and Audience:</td>

                  <td>

                      <telerik:RadTextBox ID="txtRadAudience" Runat="server" EmptyMessage="Targeted Audience" LabelWidth="" Width="560px">

                          <EmptyMessageStyle Font-Italic="False" />

                      </telerik:RadTextBox>

                  </td>

              </tr>

              </table>

      </div>

   

      <div id="div_menu" style="float:right">

          <div >

              <telerik:RadMenu ID="RadMenu1" runat="server" EnableRoundedCorners="True" EnableShadows="True" >

                  <Items>

                      <telerik:RadMenuItem runat="server" Text="Profile" >

                          <Items>

                              <telerik:RadMenuItem runat="server" Text="Save current selections as default" Font-Size="12px">

                              </telerik:RadMenuItem>

                              <telerik:RadMenuItem runat="server" Text="Load default selections" Font-Size="12px">

                              </telerik:RadMenuItem>

                              <telerik:RadMenuItem runat="server" IsSeparator="True" Text="Child RadMenuItem 3" Font-Size="12px">

                              </telerik:RadMenuItem>

                              <telerik:RadMenuItem runat="server" Text="Load default selections automatically" PostBack="false" Font-Size="12px">

                                  <ItemTemplate>

                                      <asp:CheckBox ID="CheckBox3" runat="server" Text=" Always load default selections" Font-Size="11px" />

                                  </ItemTemplate>

                              </telerik:RadMenuItem>

                          </Items>

                      </telerik:RadMenuItem>

                  </Items>

              </telerik:RadMenu>

          </div>

          <div >

              <telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" Height="64px" Width="80px">

                  <asp:Image ID="imgStatusCrearProyecto" ImageUrl="~/Resources/Icons/cross-icon.jpg" runat="server" Height="64px" Width="80px" />

                  <asp:Timer ID="Timer1" runat="server" Interval="1000">

                  </asp:Timer>

              </telerik:RadAjaxPanel>

          </div>

      </div>

   

      <div style="clear:left;">

      </div>

   

   

      <div id="divData1" class="TableTextoMedio" style="float:left; padding-top:20px;">

           

          <table class="style1">

              <tr>

                  <td class="style10">

                      Account:</td>

                  <td>

                      <telerik:RadTextBox ID="txtRadAccount" Runat="server" EmptyMessage="Account" LabelWidth="" Width="160px">

                          <EmptyMessageStyle Font-Italic="False" />

                      </telerik:RadTextBox>

                  </td>

              </tr>

              <tr>

                  <td class="style10">

           

                      Desired Delivery Date:</td>

                  <td>

           

                      <telerik:RadDateTimePicker ID="RadDateTimePicker1" Runat="server" Culture="es-ES">

                          <TimeView CellSpacing="-1" Culture="es-ES"></TimeView>

                          <TimePopupButton ImageUrl="" HoverImageUrl=""></TimePopupButton>

                          <Calendar UseRowHeadersAsSelectors="False" UseColumnHeadersAsSelectors="False" ViewSelectorText="x" ShowRowHeaders="False">

                              <SpecialDays>

                                  <telerik:RadCalendarDay Repeatable="Today" Date="" ItemStyle-CssClass="rcToday" />

                              </SpecialDays>

                          </Calendar>

                          <DateInput DisplayDateFormat="dd/MM/yyyy" DateFormat="dd/MM/yyyy" LabelWidth="" EmptyMessage="Delivery Date">

                          </DateInput>

                          <DatePopupButton ImageUrl="" HoverImageUrl=""></DatePopupButton>

                      </telerik:RadDateTimePicker>

                  </td>

              </tr>

              <tr>

                  <td class="style10">

           

                      Time Zone:</td>

                  <td>

                      <telerik:RadComboBox ID="cmbRadTimeZone" Runat="server" DataSourceID="XmlDataSourceTimeZones" DataTextField="Text" DataValueField="value"

                          Width="200px" DropDownWidth="500px" HighlightTemplatedItems="True">

                          <ItemTemplate>

                              <div class="combo-item-template" style="font-size:11px">

                                  <%# Eval("Text") %>

                              </div>

                          </ItemTemplate>

                      </telerik:RadComboBox>

                      <asp:XmlDataSource ID="XmlDataSourceTimeZones" runat="server" DataFile="~/App_Data/TimeZones.xml"></asp:XmlDataSource>

                  </td>

              </tr>

          </table>

      </div>

   

      <div id="divData2" class="TableTextoMedio" style="float: left; padding-left:50px; padding-top:20px;">

                       

          <table class="style1">

             <tr>

                 <td class="style11">

                      Purchase Order:</td>

                 <td>

                      <telerik:RadTextBox ID="txtRadPO" Runat="server" EmptyMessage="Purchase Order" LabelWidth="" Width="160px">

                          <EmptyMessageStyle Font-Italic="False" />

                      </telerik:RadTextBox>

                  </td>

             </tr>

             <tr>

                 <td class="style11">

           

                      Client Project Code:</td>

                 <td>

           

                      <telerik:RadTextBox ID="txtRadClientCode" Runat="server" EmptyMessage="Client Project Code" LabelWidth="" Width="160px">

                          <EmptyMessageStyle Font-Italic="False" />

                      </telerik:RadTextBox>

                  </td>

             </tr>

          </table>

      </div>

   

   

      <div id="div1" class="TableTextoMedio" style="float: left; padding-left:10px; padding-top:20px;">

          <asp:CheckBox ID="chkPONA" runat="server" Text=" Tick if PO is not applicable" AutoPostBack="True" />

      </div>

   

     <div style="clear:both">

     </div>

   

     <br />

      

      <div id="divSourceLanguage" class="TableTextoMedio" style="float:left;">

          <table class="style1">

             <tr>

                 <td class="style3">

                      <b>Source Language:</b></td>

                 <td>

                       </td>

             </tr>

             <tr>

                 <td>

                     <telerik:RadListBox ID="lstRadSouceLangLista" runat="server" Height="110px" Width="250px" AllowTransfer="True"

                         TransferToID="lstRadSouceLangSelected" AutoPostBackOnTransfer="True" EnableMarkMatches="True" AllowTransferOnDoubleClick="True"

                         DataKeyField="Variante" DataSortField="Nombre" DataTextField="Nombre" DataValueField="Variante" Sort="Ascending">

                          <ButtonSettings TransferButtons="Common" ShowDelete="False" ShowTransferAll="False"></ButtonSettings>

                      </telerik:RadListBox> </td>

                 <td>

                     <telerik:RadListBox ID="lstRadSouceLangSelected" runat="server" Height="110px" Width="220px" EnableMarkMatches="True" Font-Bold="True"

                         AllowTransferOnDoubleClick="True" >

                      </telerik:RadListBox> </td>

             </tr>

              

          </table>

      </div>

       

      <div id="divTargetLanguages" class="TableTextoMedio" style="float:left; padding-left:50px;">

           

          <table class="style1">

              <tr>

                  <td class="style3">

                      <b>Target Languages:</b></td>

                 <td>

                       </td>

              </tr>

              <tr>

                  <td>

                      <telerik:RadListBox ID="lstRadTargetLangLista" runat="server" Height="110px" Width="250px" AllowTransfer="True" AllowTransferOnDoubleClick="True"

                          SelectionMode="Multiple" TransferToID="lstRadTargetLangSelected" EnableMarkMatches="True" DataKeyField="Variante"

                          DataSortField="Nombre" DataTextField="Nombre" DataValueField="Variante">

                      </telerik:RadListBox>

                  </td>

                  <td>

                      <telerik:RadListBox ID="lstRadTargetLangSelected" runat="server" Height="110px" Width="220px" EnableMarkMatches="True" Font-Bold="True"

                          ForeColor="Red" AllowTransferOnDoubleClick="True">

                      </telerik:RadListBox>

                  </td>

              </tr>

          </table>

      </div>

   

      <div style="clear:both">

      </div>

   

      <br />

      <br />

   

       <div id="divTasks" class="TableTextoMedio" style="float:left;">

   

         <table class="style1">

              <tr>

                  <td class="style3">

                      <b>Tasks to be performed:</b></td>

                 <td>

                       </td>

              </tr>

              <tr>

                  <td>

                      <telerik:RadListBox ID="lstRadTasksList" runat="server" Height="110px" Width="250px" AllowTransfer="True" AllowTransferOnDoubleClick="True"

                          SelectionMode="Multiple" TransferToID="lstRadTasksSelected" EnableMarkMatches="True" DataKeyField="idTarea"

                          DataSortField="Orden" DataTextField="Descripcion" DataValueField="idTarea">

                      </telerik:RadListBox>

                  </td>

                  <td>

                      <telerik:RadListBox ID="lstRadTasksSelected" runat="server" Height="110px" Width="220px" EnableMarkMatches="True" Font-Bold="True"

                          ForeColor="Red" AllowTransferOnDoubleClick="True">

                      </telerik:RadListBox>

                  </td>

              </tr>

          </table>

   

          <br />

          <br />

   

          <div id="div_ttools" style="float:left;">

   

              <div style="padding-left:2px; padding-bottom:3px">

                  <strong>Translation tool:</strong>

              </div>

   

              <table class="style4">

                  <tr>

                      <td class="style8">

                          <telerik:RadComboBox ID="cmbRadTTools" runat="server" DataSourceID="EntityDataSourceTools" DataTextField="Nombre" DataValueField="idTTool"

                              EnableTextSelection="False" MarkFirstMatch="True" Sort="Ascending" Width="200px" AutoPostBack="True" CheckBoxes="True"

                              DropDownWidth="230px">

                          </telerik:RadComboBox>

                      </td>

                  </tr>

                  <tr>

                      <td class="style8">

                           </td>

                  </tr>

                  <tr>

                      <td class="style8" >

                          <div id="div_OtherTTool" runat="server" style="visibility:hidden">

                          <telerik:RadTextBox ID="txtRadOtherTTool" Runat="server" EmptyMessage="Please indicate" LabelWidth="" Width="190px">

                              <EmptyMessageStyle Font-Italic="True"/>

                          </telerik:RadTextBox>

                          </div>

                      </td>

                  </tr>

              </table>

          </div>

   

   

          <div id="div_hiddentext" style="float:left; padding-left:40px">

   

              <div style="padding-left:2px; padding-bottom:3px">

                  <strong>Is there hidden text?</strong>

              </div>

   

              <table class="style4">

                  <tr>

                      <td class="style8">

                          <asp:RadioButton ID="radioHiddenTextYes" runat="server" Checked="True" GroupName="grpHiddenText" Text=" Yes" />

                      </td>

                      <td>

                           </td>

                  </tr>

                  <tr>

                      <td class="style8">

                          <asp:RadioButton ID="radioHiddenTextNo" runat="server" GroupName="grpHiddenText" Text=" No" Checked="True" />

                      </td>

                      <td>

                           </td>

                  </tr>

                  <tr>

                      <td class="style8">

                          <asp:RadioButton ID="radioHiddenTextDontKnow" runat="server" GroupName="grpHiddenText" Text=" Don't know" />

                      </td>

                      <td>

                           </td>

                  </tr>

              </table>

          </div>

      </div>

   

      <div id="divTranslate" class="TableTextoMedio" style="float:left; padding-left:50px;">

          <div style="padding-left:2px; padding-bottom:3px">

              <strong>Translate:</strong>

          </div>

   

          <table class="style4">

              <tr>

                  <td>

   

                      <table>

                              <tr>

                              <td class="style7">

                                  <asp:RadioButton ID="radioTranslateAll" runat="server" Checked="True" GroupName="grpTranslate" Text="All" AutoPostBack="True" />

                              </td>

                          </tr>

                          <tr>

                              <td class="style7">

                                  <asp:RadioButton ID="radioTranslateSelect" runat="server" GroupName="grpTranslate" Text="Select" AutoPostBack="True" />

                              </td>

                          </tr>

                      </table>

                       

                      <table style="padding-left:15px">

                          <tr>

                              <td class="style7">

                                  <asp:CheckBox ID="chkTranslateText" runat="server" Text=" Text" Enabled="False" />

                              </td>

                          </tr>

                          <tr>

                              <td class="style7">

                                  <asp:CheckBox ID="chkTranslateTextBoxes" runat="server" Text=" Text boxes" Enabled="False" />

                              </td>

                          </tr>

                          <tr>

                              <td class="style7">

                                  <asp:CheckBox ID="chkTranslateImages" runat="server" Text=" Images" Enabled="False" />

                              </td>

                          </tr>

                          <tr>

                              <td class="style7" style="vertical-align:top";>

                                  <asp:CheckBox ID="chkTranslateOther" runat="server" Text=" Other:" AutoPostBack="True" Enabled="False" />

                              </td>

                          </tr>

                          <tr>

                              <td class="style7" style="vertical-align:top";>

                                  <telerik:RadTextBox ID="txtRadTranslateOther" Runat="server" EmptyMessage="Elements to be translated" LabelWidth="" TextMode="MultiLine"

                                      Width="100%" Rows="8" Enabled="False">

                                      <emptymessagestyle font-italic="False" />

                                  </telerik:RadTextBox>

                              </td>

                          </tr>

                      </table>

   

                  </td>

              </tr>

          </table>

      </div>

   

      <div id="divFormats" class="TableTextoMedio" style="float:left; padding-left:60px;">

          <div style="padding-left:2px; padding-bottom:3px">

              <strong>Delivery format:</strong>

          </div>

   

          <table class="style4">

              <tr>

                  <td class="style7">

                      <asp:CheckBox ID="chkDeliverySource" runat="server" Text=" Source format" Checked="True" />

                  </td>

              </tr>

              <tr>

                  <td class="style7" style="vertical-align:top";>

                      <asp:CheckBox ID="chkDeliveryOther" runat="server" Text=" Other:" AutoPostBack="True" />

                  </td>

              </tr>

              <tr>

                  <td class="style7" style="vertical-align:top";>

                      <telerik:RadTextBox ID="txtRadDeliveryOther" Runat="server" EmptyMessage="Describe the formats you desire" LabelWidth="" TextMode="MultiLine"

                          Width="100%" Rows="8" Enabled="False">

                          <emptymessagestyle font-italic="False" />

                      </telerik:RadTextBox>

                  </td>

              </tr>

          </table>

      </div>

   

      

      <div style="clear:both">

      </div>

   

      <br />

   

      <div id="divInstructions" class="TableTextoMedio">

          <div style="padding-left:2px; padding-bottom:3px">

              <strong>Translation Instructions:</strong>

          </div>

          <table class="style1">

              <tr>

                  <td>

                      <telerik:RadTextBox ID="RadTextBox1" Runat="server" EmptyMessage="Type translation instructions" LabelWidth="" TextMode="MultiLine"

                          Width="740px" Rows="10">

                          <emptymessagestyle font-italic="True" />

                      </telerik:RadTextBox>

                  </td>

              </tr>

          </table>

      </div>

   

      <br />

      <br />

   

      <div class="TableTextoPeque">

          <asp:Button ID="Button1" runat="server" Text="Create project" />

      </div>

   

      <telerik:RadToolTipManager ID="RadToolTipManager1" runat="server" HideEvent="LeaveTargetAndToolTip" RenderInPageRoot="True"

          OnAjaxUpdate="OnAjaxUpdate" AutoCloseDelay="0" EnableShadow="True" Position="BottomLeft" RelativeTo="Mouse" Width="400px"

          ShowDelay="0" >

          <TargetControls>

              <telerik:ToolTipTargetControl TargetControlID="imgStatusCrearProyecto" IsClientID="false" />

          </TargetControls>

      </telerik:RadToolTipManager>

   

    

   

      <telerik:RadSkinManager ID="RadSkinManager1" Runat="server" Skin="Office2007">

      </telerik:RadSkinManager>

   

      <asp:EntityDataSource ID="EntityDataSourceTools" runat="server" ConnectionString="name=Extranet_JSProjects_Entities"

          DefaultContainerName="Extranet_JSProjects_Entities" EnableFlattening="False" EntitySetName="js_TranslationTools"

          Select="it.[idTTool], it.[Nombre]">

      </asp:EntityDataSource>

   

  </asp:Content>
  
  CreateProject.aspx.vb
  

  Imports Telerik.Web.UI

  Imports System.Data

  Imports Extranet_JSProjects_Model

   

  Partial Class Web_Clients_CreateProject

      Inherits System.Web.UI.Page

   

      Public Class ErroresAlCrearProyecto

          Private _Campo As String

          Public Property Campo As String

              Get

                  Return _Campo

              End Get

              Set(value As String)

                  _Campo = value

              End Set

          End Property

   

          Private _DescripcionError As String

          Public Property DescripcionError As String

              Get

                  Return _DescripcionError

              End Get

              Set(value As String)

                  _DescripcionError = value

              End Set

          End Property

      End Class

   

   

      Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load

   

          If Not IsPostBack Then

              CargarIdiomas(lstRadSouceLangLista)

              CargarIdiomas(lstRadTargetLangLista)

   

              lstRadSouceLangLista.ButtonSettings.TransferButtons = ListBoxTransferButtons.TransferFrom

              lstRadSouceLangLista.Sort = RadListBoxSort.Ascending

              lstRadSouceLangLista.SortItems()

   

              lstRadTargetLangLista.Sort = RadListBoxSort.Ascending

              lstRadTargetLangLista.SortItems()

   

              CargarTareas(lstRadTasksList)

   

              div_OtherTTool.Attributes("style") = "visibility:hidden"

   

              RadDateTimePicker1.MinDate = Now

              'RadToolTipManager1.TargetControls.Add(imgStatusCrearProyecto.ClientID, True)

   

              txtRadProjectName.Focus()

          End If

   

      End Sub

   

   

      Protected Sub CargarIdiomas(lista As RadListBox)

   

          Using myProjectsEntities As New Extranet_JSProjects_Entities

              Dim query = From v In myProjectsEntities.js_IdiomasVariantes Join i In myProjectsEntities.js_Idiomas On v.IdiomaPadre Equals i.IdiomaId

                          Select New With {.Nombre = i.Nombre, .Variante = v.Nombre, .IdiomaId = i.IdiomaId, .IdiomaVarianteId = v.IdiomaVarianteId}

   

              For Each v In query

                  Dim texto As String

                  Dim valor As Integer

   

                  texto = v.Nombre & " - " & v.Variante

                  valor = v.IdiomaVarianteId

   

                  Dim elemento As New RadListBoxItem

                  elemento.Text = texto

                  elemento.Value = valor

   

                  lista.Items.Add(elemento)

              Next

          End Using

   

      End Sub

   

      Protected Sub CargarTareas(lista As RadListBox)

   

          Using myProjectsEntities As New Extranet_JSProjects_Entities

              Dim query = From t In myProjectsEntities.js_TareasTraduccion

                          Order By t.Orden

                          Select t

   

              For Each t In query

                  Dim texto As String

                  Dim valor As Integer

   

                  texto = t.Descripcion

                  valor = t.idTarea

   

                  Dim elemento As New RadListBoxItem

                  elemento.Text = texto

                  elemento.Value = valor

   

                  lista.Items.Add(elemento)

              Next

          End Using

   

      End Sub

   

      Protected Sub Timer1_Tick(sender As Object, e As System.EventArgs) Handles Timer1.Tick

          Dim NumeroDeErrores As Integer = 0

   

          'Nombre del proyecto

          If txtRadProjectName.Text.Length = 0 Then

              NumeroDeErrores = NumeroDeErrores + 1

          End If

   

          'Purchase Order

          If txtRadPO.Text.Length = 0 And chkPONA.Checked = False Then

              NumeroDeErrores = NumeroDeErrores + 1

          End If

   

          If NumeroDeErrores = 0 Then

              'RadToolTipManager1.TargetControls.Clear()

              imgStatusCrearProyecto.ImageUrl = "~/Resources/Icons/check-icon.jpg"

          Else

              'RadToolTipManager1.TargetControls.Add(imgStatusCrearProyecto.ClientID, True)

              imgStatusCrearProyecto.ImageUrl = "~/Resources/Icons/cross-icon.jpg"

          End If

   

      End Sub

   

      Private Sub AgregarError(Campo As String, Descripcion As String, ListaDeErrores As List(Of ErroresAlCrearProyecto))

          Dim ErrorEnCurso As New ErroresAlCrearProyecto

   

          ErrorEnCurso.Campo = Campo

          ErrorEnCurso.DescripcionError = Descripcion

   

          ListaDeErrores.Add(ErrorEnCurso)

      End Sub

   

   

      Protected Sub OnAjaxUpdate(sender As Object, e As ToolTipUpdateEventArgs)

   

          Dim ListaDeErrores As New List(Of ErroresAlCrearProyecto)

   

          Using myEntities As New Extranet_JSProjects_Entities

   

              'Eliminar todos los registros que haya en la tabla

              Dim query = From r In myEntities.js_ErroresCrearProyecto

                         Select r

   

              For Each r In query

                  myEntities.js_ErroresCrearProyecto.DeleteObject(r)

              Next

   

   

              'Añadir el error a la tabla js_ErroresCrearProyecto

   

              'Nombre del proyecto

              If txtRadProjectName.Text.Length = 0 Then

                  AgregarError("Project Name", "Enter a project name", ListaDeErrores)

              End If

   

              'Purchase Order

              If txtRadPO.Text.Length = 0 And chkPONA.Checked = False Then

                  AgregarError("Purchase Order", "Enter a PO or tick the checkbox", ListaDeErrores)

              End If

   

              For Each r In ListaDeErrores

                  Dim NuevoError As New js_ErroresCrearProyecto

                  NuevoError.Campo = r.Campo

                  NuevoError.Descripcion = r.DescripcionError

                  myEntities.AddTojs_ErroresCrearProyecto(NuevoError)

              Next

   

              myEntities.SaveChanges()

   

          End Using

   

          Dim panel As New UpdatePanel

          panel = e.UpdatePanel

   

          Dim ctrl As Control = Page.LoadControl("CreateProjectErrors.ascx")

          panel.ContentTemplateContainer.Controls.Add(ctrl)

   

      End Sub

   

   

      Protected Sub Button1_Click(sender As Object, e As System.EventArgs) Handles Button1.Click

          Response.Redirect("UploadFiles.aspx")

      End Sub

   

   

      Protected Sub RadListBox2_Deleted(sender As Object, e As Telerik.Web.UI.RadListBoxEventArgs) Handles lstRadSouceLangSelected.Deleted

          lstRadSouceLangLista.ButtonSettings.TransferButtons = ListBoxTransferButtons.TransferFrom

          lstRadSouceLangLista.AllowTransferOnDoubleClick = True

          lstRadSouceLangSelected.AllowTransferOnDoubleClick = False

      End Sub

   

   

      Protected Sub RadListBox2_Inserted(sender As Object, e As Telerik.Web.UI.RadListBoxEventArgs) Handles lstRadSouceLangSelected.Inserted

          lstRadSouceLangLista.ButtonSettings.TransferButtons = ListBoxTransferButtons.TransferTo

          lstRadSouceLangLista.AllowTransferOnDoubleClick = False

          lstRadSouceLangSelected.AllowTransferOnDoubleClick = True

      End Sub

   

      Protected Sub RadComboBoxTTools_DataBound(sender As Object, e As System.EventArgs) Handles cmbRadTTools.DataBound

          cmbRadTTools.SortItems()

   

          'Seleccionar por omisión la opción "No choice"

          For Each elemento As RadComboBoxItem In cmbRadTTools.Items

              If elemento.Text = AppConfiguration._String_NoChoice Then

                  elemento.Selected = True

                  elemento.Checked = True

              End If

          Next

      End Sub

   

      Protected Sub cmbRadTTools_ItemChecked(sender As Object, e As Telerik.Web.UI.RadComboBoxItemEventArgs) Handles cmbRadTTools.ItemChecked

   

          'Si se selecciona "No Choice" se deseleccionan todos los demás

          'Se se selecciona cualquier otro se deselecciona "No Choice"

   

          If e.Item.Text = AppConfiguration._String_NoChoice Then

              For Each elemento As RadComboBoxItem In cmbRadTTools.Items

                  If elemento.Text <> AppConfiguration._String_NoChoice Then

                      elemento.Checked = False

                  End If

              Next

          Else

              For Each elemento As RadComboBoxItem In cmbRadTTools.Items

                  If elemento.Text = AppConfiguration._String_NoChoice Then

                      elemento.Checked = False

                  End If

              Next

          End If

   

          If e.Item.Text = AppConfiguration._String_Other And e.Item.Checked = True Then

              div_OtherTTool.Attributes("style") = "visibility:visible"

          End If

   

          If e.Item.Text = AppConfiguration._String_Other And e.Item.Checked = False Then

              div_OtherTTool.Attributes("style") = "visibility:hidden"

          End If

   

          e.Item.Selected = True

   

          'Si no hay ningún elemento seleccionado, seleccionar "No Choice"

          If cmbRadTTools.CheckedItems.Count = 0 Then

              For Each elemento As RadComboBoxItem In cmbRadTTools.Items

                  If elemento.Text = AppConfiguration._String_NoChoice Then

                      elemento.Checked = True

                      elemento.Selected = True

                  End If

              Next

          End If

   

      End Sub

   

   

      Protected Sub chkPONA_CheckedChanged(sender As Object, e As System.EventArgs) Handles chkPONA.CheckedChanged

          If chkPONA.Checked = True Then

              txtRadPO.Enabled = False

          Else

              txtRadPO.Enabled = True

          End If

      End Sub

   

      Protected Sub cmbRadTimeZone_DataBound(sender As Object, e As System.EventArgs) Handles cmbRadTimeZone.DataBound

          'Seleccionar la zona horaria del usuario

          For Each elemento As RadComboBoxItem In cmbRadTimeZone.Items

              Dim valor = Convert.ToDouble(elemento.Value)

              If valor = Profile.TimeZone Then

                  elemento.Selected = True

              End If

          Next

      End Sub

   

   

      Protected Sub radioTranslateSelect_CheckedChanged(sender As Object, e As System.EventArgs) Handles radioTranslateSelect.CheckedChanged

          chkTranslateImages.Enabled = CType(sender, RadioButton).Checked

          chkTranslateText.Enabled = CType(sender, RadioButton).Checked

          chkTranslateTextBoxes.Enabled = CType(sender, RadioButton).Checked

          chkTranslateOther.Enabled = CType(sender, RadioButton).Checked

      End Sub

   

   

      Protected Sub radioTranslateAll_CheckedChanged(sender As Object, e As System.EventArgs) Handles radioTranslateAll.CheckedChanged

          chkTranslateImages.Enabled = Not CType(sender, RadioButton).Checked

          chkTranslateText.Enabled = Not CType(sender, RadioButton).Checked

          chkTranslateTextBoxes.Enabled = Not CType(sender, RadioButton).Checked

          chkTranslateOther.Enabled = Not CType(sender, RadioButton).Checked

      End Sub

   

      Protected Sub chkTranslateOther_CheckedChanged(sender As Object, e As System.EventArgs) Handles chkTranslateOther.CheckedChanged

          txtRadTranslateOther.Enabled = CType(sender, CheckBox).Checked

      End Sub

   

      Protected Sub chkDeliveryOther_CheckedChanged(sender As Object, e As System.EventArgs) Handles chkDeliveryOther.CheckedChanged

          txtRadDeliveryOther.Enabled = CType(sender, CheckBox).Checked

      End Sub

   

   

  End Class
  
  
  CreateProjectErrors.ascx
  

  <%@ Control Language="VB" AutoEventWireup="false" CodeFile="CreateProjectErrors.ascx.vb" Inherits="Web_Clients_WebUserControl" %>

  <%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>

   

  <table width="360px" cellpadding="1">

      <tr>

          <td style="width:150px;">

                  <strong>Field</strong>

              </td>

              <td style="width:200px;">

                  <strong>Error</strong>

              </td>

          </tr>

      <tr>

          <td >

                

          </td>

          <td >

                

          </td>

      </tr>

      <asp:Repeater ID="repeaterErroresCrearProyecto" runat="server">

          <ItemTemplate>

              <tr>

                  <td>

                      <%# Eval("Campo")%>

                  </td>

                  <td>

                      <%# Eval("Descripcion")%>

                  </td>

              </tr>

          </ItemTemplate>

      </asp:Repeater>

  </table>

   

  <asp:EntityDataSource ID="EntityDataSource1" runat="server" ConnectionString="name=Extranet_JSProjects_Entities"

      DefaultContainerName="Extranet_JSProjects_Entities" EnableFlattening="False" EntitySetName="js_ErroresCrearProyecto"

      Select="it.[Campo], it.[Descripcion]">

  </asp:EntityDataSource>

  
  
  CreateProject.ascx.vb
  

  Partial Class Web_Clients_WebUserControl

      Inherits System.Web.UI.UserControl

   

      Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load

   

          repeaterErroresCrearProyecto.DataSource = EntityDataSource1

          repeaterErroresCrearProyecto.DataBind()

   

      End Sub

   

  End Class

  Reply

• Princy MVP

  Posted on Jan 17, 2012 (permalink)

  Hello,
  
  Take a look into this documentation which discussed the same.
  
  Thanks,
  Princy.

  Reply


• Joaquín

  Posted on Jan 17, 2012 (permalink)

  Hello Princy,
  
  Thank you for your answer. I have read the blog you susggested, but unluckyly, the answer seems no the be there. I have removed everything related with Ajax in the page, but the OnAjaxUpdate routine of the RadToolTipManager. Now the exception is not appearing anymore. However, everytime a postback is triggered, if the Transfer-To listboxes contain some item, these are duplicated (which is just weird).
  
  At this poing, after several days spending quite a bunch of hours trying to find a solution, I tend to think that there is something wrong in my OnAjaxUpdate routine, but cant figure what it is. I guess that I will just remove the RadToolTipManager from the project and will replace its function with an easy and totally trusted check on the page postback.
  
  J.

  Reply

• Marin Bratanov Marin Bratanov

  Posted on Jan 18, 2012 (permalink)

  Hi J,
  
  I am sorry to hear you are having such trouble. I tried running your code, but in order to do so I had to strip out the datasources and custom namespaces. After that things were working fine with me, which makes me believe the issue stems somewhere in the code I had to comment out. I am attaching my test page as a reference hoping that this isolated case will help you pinpoint the origin of the error. Please keep in mind that such an alert is the way the AJAX framework shows server errors thrown during the ajax request, so I advise that you add several breakpoints in your code so that you can run the page in debug mode, step through them and see where and what the exact error is in order to resolve it.
  
  I can also suggest that you replace the RadAjaxPanel with ID RadAjaxPanel1 with a regular update panel with UpdateMode set to Conditional. I am asking this so that we make sure there isn't an endless AJAX request loop. What happens in your case is that you have a timer that triggers an update every second, yet two subsequent AJAX requests result in only the last being executed, so if something in your code-behind is not executed, yet later code relies on it this is a very likely reason for a server error.
  
  Since the check I see in the Timer1.Tick event is mainly if there is text in certain textboxes you can also try using the asp RequiredFieldValidator and place the ValidationSummary in a regular RadToolTip or leave it on the page. You could also add an asp UpdatePanel in it to load the needed user control or simply update it. This demo shows an idea how to place the validation summary in a popup.
  
  
  Kind regards,
  Marin
  the Telerik team

  If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now

  Attached files

  • Joaquin-ajax.zip

  Reply

• Joaquín

  Posted on Jan 19, 2012 (permalink)

  Thank you for your detailed reply Marin (I can see it took a bit of work to you to make it up). I will try to implement things as you describe and will see how it goes.
  J.
  

  Reply

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