ASP.NET-->Ajax-->Getting error Sys.InvalidOperationException: Handler was not added through the Sys.UI.DomEvent.addHandler method.

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  I have History button in main screen, when you click it opens pop-up screen which has dropdown, when you select some value from DD it displays result.

  Now the problem is when i select something from dropdown, displays the result. Then i click close button, go back to original screen. But then when i click History button again displays the below error message:
   Sys.InvalidOperationException: Handler was not added through the Sys.UI.DomEvent.addHandler
  
  I am getting an error only after selecting value from DD. Otherwise it works fine.
   
  Failing on following statement:
  var $removeHandler = Sys.UI.DomEvent.removeHandler = function Sys$UI$DomEvent$removeHandler(element, eventName, handler) {if ((typeof(element._events) !== 'object') || (element._events == null)) throw Error.invalidOperation(Sys.Res.eventHandlerInvalid);
  
  

   

  I have following coded in ASP.NET page.
  
  <ajaxToolkit:ModalPopupExtender ID="modalPopupAddMargin" runat="server" TargetControlID="buttonAddMarginDummy"PopupControlID="panelAddMargin" PopupDragHandleControlID="panelAddMargin" BackgroundCssClass="modalBackground" DropShadow="false" />
  
  <ajaxToolkit:ModalPopupExtender ID="modalPopupHistory" runat="server" TargetControlID="buttonDummyForHistory"PopupControlID="panelHistoryMarginSchedule" PopupDragHandleControlID="panelHistoryMarginSchedule"BackgroundCssClass="modalBackground" DropShadow="false" CancelControlID = "buttonHistoryClose" />
  
  
  Panel code:
  
  
  
  <!--Popup div Section Start For History Margin -->
  
  
  
  <asp:Panel ID="panelHistoryMarginSchedule" class="popup" Style="display: none" runat="server">
  
  
  
  <asp:UpdatePanel ID="updatePanelHistoryMargin" runat="server" UpdateMode ="Conditional" ChildrenAsTriggers="true" ><ContentTemplate><table id="Table2" width="45%" border="0" cellspacing="0" cellpadding="2" runat="server">
  
  
  
  <tr><td class="popupTitle"><div><asp:Label ID="labelHistoryMarginClearPar" runat="server"></asp:Label></div></td></tr>
  
  
  
  <tr><td><fieldset><legend><asp:Label ID="labelHistoryMargin" runat="server" Text="Margin Schedule"></asp:Label></legend>
  
  
  
  <table width="100%" border="0" cellspacing="0" cellpadding="5" class="formTable">
  
  
  
  <tr>
  
  
  
  <td style="width: 30%;">
  
  
  
  <asp:Label ID="labelViewRateType" runat="server"></asp:Label>
  
  
  
  </td>
  
  
  
  <td style="width: 70%;">
  
  
  
  <Acbs:EnumDropDownList ID="dropDownListViewRateType" runat="server" CssClass="selectBox"
  
  
  
  AutoPostBack="true" OnSelectedIndexChanged="DropDownListViewRateType_SelectedIndexChanged"
  
  
  
  EnumTypeName="Acbs.Entities.InterestRateIndexList" AlphabeticalSort="true" />
  
  
  
  <ajaxToolkit:ListSearchExtender runat="server" TargetControlID="dropDownListViewRateType"
  
  
  
  PromptCssClass="listSearchPrompt" ID="listSearchViewRateType" />
  
  
  
  </td>
  
  
  
  </tr>
  
  
  
  <tr><td style="border-color: Black; border-width: thin;" colspan="2"><table border="0" cellpadding="0" cellspacing="0" width="100%">
  
  
  
  <tr><td><Acbs:StyledGridView ID="gridViewHistoryMarginSchedule" Class="gridTable" runat="server"
  
  
  
  AutoGenerateColumns="False" GridLines="Vertical" OnRowDataBound="GridViewHistoryMarginSchedule_RowDataBound"
  
  
  
  DataKeyNames="FacilityMarginScheduleIdentifier" OnInit="GridViewHistoryMarginSchedule_Init"
  
  
  
  OnPageIndexChanging="GridViewHistoryMarginSchedule_PageIndexChanging" AllowPaging="true"
  
  
  
  PageSize="5">
  
  
  
  <RowStyle CssClass="gridArea" />
  
  
  
  <PagerSettings Mode="NumericFirstLast"></PagerSettings>
  
  
  
  <AlternatingRowStyle CssClass="gridArea alter" />
  
  
  
  <Columns>
  
  
  
  <asp:TemplateField HeaderText="Rate Type">
  
  
  
  <ItemTemplate></ItemTemplate></asp:TemplateField><asp:BoundField /><asp:BoundField /><asp:BoundField />
  
  
  
  </Columns>
  
  
  
  </Acbs:StyledGridView></td></tr></table></td></tr></table></fieldset></td></tr></table></ContentTemplate>
  
  
  
  <Triggers>
  
  
  
  <asp:AsyncPostBackTrigger ControlID="dropDownListViewRateType" EventName="SelectedIndexChanged" />
  
  
  
  </Triggers>
  
  
  
  </asp:UpdatePanel><table><tr><td class="actionButtonRow"><Acbs:CustomButton ID="buttonHistoryClose" runat="server" CausesValidation="false" 
  
  
  
  OnClick="ButtonHistoryClose_Click" /></td></tr></table></asp:Panel>
  
  
  
  In code Behind:
  
  
  
  When change the value in dropdown:
  
  
  
  protected
   
   void DropDownListViewRateType_SelectedIndexChanged(object sender, EventArgs e)
   
  TList<FacilityMarginSchedule> margincollection = (TList<FacilityMarginSchedule>)ViewState[MarginScheduleList];
   
   
  if (margincollection != null && margincollection.Count > 0)
   
  if (dropDownListViewRateType.SelectedItem.Text != All)
   
  int interestTypeCode = (int.TryParse(dropDownListViewRateType.SelectedValue, out interestTypeCode) ? interestTypeCode : 0);
   
  else
  {
  gridViewHistoryMarginSchedule.DataSource = GetSortedMarginScheduleList();
  gridViewHistoryMarginSchedule.DataBind();
   
  // this.modalPopupHistory.Show();
   
  this.updatePanelHistoryMargin.Update();
   
  }
  }
  }
  gridViewHistoryMarginSchedule.DataSource = GetSortedMarginScheduleListByType(interestTypeCode);
  gridViewHistoryMarginSchedule.DataBind();
  }
   
  { 
   
  {
   
  {
  ViewState[MarginScheduleHistoryIndex] = 0;
   
  
  

  • Moved by nobugz Thursday, September 17, 2009 2:30 AM forums.asp.net (From:.NET Base Class Library)

  Wednesday, September 16, 2009 12:48 PM