Microsoft JScript runtime error: Sys.ArgumentNullException: Value cannot be null

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I am getting the following error:
Microsoft JScript runtime error: Sys.ArgumentNullException: Value cannot be null.
Parameter name: panelsCreated[1]
while pointing to the following code in file(ScriptResource.axd...[dynamic]):

$type.registerClass('Sys.WebForms.InitializeRequestEventArgs', Sys.CancelEventArgs);
$type = Sys.WebForms.PageLoadedEventArgs = function PageLoadedEventArgs(panelsUpdated, panelsCreated, dataItems) {
    /// <summary locid="M:J#Sys.WebForms.PageLoadedEventArgs.#ctor">The arguments for the PageRequestManager's pageLoaded event. The pageLoaded event is raised after the DOM has been updated.</summary>
    /// <param name="panelsUpdated" type="Array">An array of UpdatePanels that were updated.</param>
    /// <param name="panelsCreated" type="Array">An array of UpdatePanels that were created.</param>
    /// <param name="dataItems" type="Object" mayBeNull="true"></param>
    var e = Function._validateParams(arguments, [
        {name: "panelsUpdated", type: Array},
        {name: "panelsCreated", type: Array},
        {name: "dataItems", type: Object, mayBeNull: true}
    ]);
    if (e) throw e;
    Sys.WebForms.PageLoadedEventArgs.initializeBase(this);

    this._panelsUpdated = panelsUpdated;
    this._panelsCreated = panelsCreated;
    this._dataItems = dataItems || new Object();
}

with line : " if (e) throw e" highlighted.

This is happening when I click for the 2nd or 3rd time in a row on a LinkButton.
The LinkButton successfully calls/executes a WebService method, and then produces the error!

The LinkButton code is below:

XML

<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server">
</asp:ToolkitScriptManager>
<asp:Panel ID="Panel3" runat="server">
    <asp:UpdatePanel ID="UpdatePanel3" runat="server" UpdateMode="Conditional">
        <ContentTemplate>
 <asp:LinkButton ID="LinkButton100" CssClass="calendar" 
        value="LinkButton1" rel="nofollow" runat="server" 
        OnClick="LinkButton1_Click">hi</asp:LinkButton>
 <asp:LinkButton ID="LinkButton60" CssClass="calendar" 
        value="LinkButton60" runat="server" OnClick="LinkButton1_Click">LinkButton
  </asp:LinkButton><br />
  <asp:LinkButton ID="LinkButton120" CssClass="calendar" 
        value="LinkButton120" runat="server"OnClick="LinkButton1_Click">LinkButton12
</asp:LinkButton>
<asp:Panel ID="Panel1" CssClass="popup" runat="server">
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="False">
    <ContentTemplate>
         <div>
             Event:
             <asp:Literal ID="Literal1" runat="server"></asp:Literal><br />
             Time:
             <asp:Literal ID="Literal2" runat="server"></asp:Literal><br />
             Location:
             <asp:Literal ID="Literal3" runat="server"></asp:Literal><br />
      </div>
 </ContentTemplate>
   <Triggers>
        <asp:AsyncPostBackTrigger ControlID="LinkButton60" EventName="Click" />
         <asp:AsyncPostBackTrigger ControlID="LinkButton120" EventName="Click" />
 </Triggers>
</asp:UpdatePanel>
 </asp:Panel>
 <asp:BalloonPopupExtender ID="BalloonPopupExtender1" BalloonPopupControlID="Panel1"Position="TopRight" 
     TargetControlID="LinkButton60" runat="server" 
     BalloonSize="Medium"DisplayOnMouseOver="True" 
     DynamicContextKey='1' DynamicControlID="Panel1"
     DynamicServicePath="DynamicPopulate.asmx" 
     DynamicServiceMethod="UpdatePanel1_DynamicPopulateExtender">
</asp:BalloonPopupExtender>
<asp:Panel ID="Panel2" runat="server" 
    CssClass="popup">
<asp:UpdatePanel ID="UpdatePanel2" runat="server" 
     UpdateMode='Conditional' ChildrenAsTriggers="false">
   <ContentTemplate>
           <asp:PlaceHolder ID="PlaceHolder1" 
               runat="server">
                 <asp:Image ID="Image1" Style="height: auto;"
                     ImageUrl="/img/imagename.jpg" 
                     AlternateText="nameofevent"
                     />
            </asp:PlaceHolder>
    </ContentTemplate>
    <Triggers>
           <asp:AsyncPostBackTrigger ControlID="LinkButton60" 
                EventName="Click"  />
               <asp:AsyncPostBackTrigger ControlID="LinkButton120" 
                    EventName="Click" />
     </Triggers>
</asp:UpdatePanel>
</asp:Panel>
<asp:PopupControlExtender ID="PopupControlExtender1"
        runat="server" Position="Bottom" 
        PopupControlID="Panel2" DynamicContextKey="value" 
        DynamicControlID="Panel2" 
        DynamicServiceMethod="PlaceHolder1_DynamicPopulateExtender"
        DynamicServicePath="DynamicPopulate.asmx"
        TargetControlID="LinkButton60">
</asp:PopupControlExtender>
        </ContentTemplate>
    </asp:UpdatePanel>

The web service method:

       [System.Web.Services.WebMethodAttribute(),
        System.Web.Script.Services.ScriptMethodAttribute()]
       public string PlaceHolder1_DynamicPopulateExtender(string contextKey)
       {
.............builds a string, s
           return s.ToString();
       }

ANY IDEAS what the problem is? or how can find it???

Posted 3-Dec-12 22:33pm

Member 9445358

Updated 7-Oct-18 6:55am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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3 solutions

Solution 4

Setting ScriptMode="Release" is kind of hacking at the leaves instead of the roots. I think "Release" mode is the same for building a project in release mode. i.e. don't give away any debug info. So in essence all you're doing by setting ScriptMode="Release" is hiding the script error message. What I found in my situation is I was creating controls in Page_Init dynamically and they were being created with the same ID. I was also setting multiple selected items in a dynamically created ListBox when the SelectionMode was Single and not Multiple. I think in general if you're creating controls on the fly take care you're setting all the properties on the control correctly too...

Posted 7-Sep-14 23:35pm

Ewert Bergh

Updated 8-Sep-14 0:09am

v4

Solution 5

When using FrameWork 4 and in GridView dynamically creating CheckBox, Button or other controls, events will fire in unusual order. Page_Load fires after create record.

Posted 7-Oct-18 6:55am

Arnas Mockevičius

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

saboor awan · Accepted Answer · 2012-12-14T01:52:00

Solution 1

Set ScriptMode="Release" of your ScriptManager.

Posted 14-Dec-12 1:52am

saboor awan

Comments

ken.wyatt 12-Jul-13 9:42am

That fixes the issue, but do you know why it's an issue in the first place?

vinayppn 16-Sep-13 8:55am

Thank you very much for the solution Saboor.

roopa1984 24-Feb-14 5:13am

Thank you very much..this is exactly what am looking for..it works!!!! :)

BD Innovative 10-Mar-14 12:03pm

nice bro

Microsoft JScript runtime error: Sys.ArgumentNullException: Value cannot be null

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Microsoft JScript runtime error: Sys.ArgumentNullException: Value cannot be null

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