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a.parentnode is null or not an object Jscript runtime error

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Ajax

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answered on 07 Oct 2009, 01:04 PM

Hi Alicia,

This could happen in complex scenarios where there are many object references in different pages. The easiest way to solve the problem without changing the logic is to use the DestroyOnClose property. Set ti to true and RadWindow's object will be destroyed once it is closed. Please note however that in such case, when you run your code again, you will not be able to open that same RadWindow until the page is reloaded. A new RadWindow with the default settings from the RadWindowManager will be opened instead. That is why in scenario like this, it is better to either set all the neeeded properties in the RadWindowManager or ot set them by using the client-side API every time you open the RadWindow.

I hope this helps. If you still experience problems after that, it will be best to open a support ticket and to send us a sample project where this issue could be reproduced. We will examine it and do our best to help.

All the best,
Georgi Tunev
the Telerik team

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answered on 10 Sep 2010, 11:21 AM

hello,

my problem is, i am using the radgrid in that i am showing the status of each row (it is a hyperlink)
on click of status i am showing the radwindow in that i have option to change the status for that row.
on rad window i have 2 buttons Save and close on on save i am saving the status in database and redirecting to the parent page
while redirecting it should refresh the parent page and update the status of that row.
even on close button i want same ,

but now it is refreshing the page only first time when i open the radwindow and closed it but after i want to change the status of second row i am getting the jscript error "element parent node is null" and "Object doesnot support property or method" after this idid some changes,
i used DestroyOnClose="true" then it is showing the

my code is below on Parent page
i using the
<telerik:RadAjaxPanel ID="rjxPanel_PurchaseOrder" runat="server"
LoadingPanelID="RadAjaxLoadingPanel1" Width="100%" Height="100%" >

<tr>

<td>

<div id="RestrictionZone" class="module" style="margin-top: 4px; height: 300px; width: 400px;">

<telerik:RadWindowManager ID="RadWindowManager1" runat="server" style="z-index:7001">

<Windows>

<telerik:RadWindow runat="server" ID="RadWindow1" ReloadOnShow="true"

ShowContentDuringLoad="true" Modal="true"

Height="560px" Width="620px" NavigateUrl="ManagePurchaseOrder.aspx"

Animation="Fade" />

</Windows>

</telerik:RadWindowManager>

</div>

</td>

</tr>

function ChangeStatus(OrderID)

{

var EntityID =document.getElementById("ctl00_ContentPlaceHolder1_HiddenField_EntityID").value;

// window.showModalDialog('ManageStatusChange.aspx?EntityID=' + EntityID + '&EntityType=PurchaseOrder&EntityKeyID='+OrderID , this, "status:no;help:no;overflow:auto;center:yes;dialogWidth:775px;dialogHeight:675px");

var PopupWindow=radopen('ManageStatusChange.aspx?EntityID=' + EntityID + '&EntityType=PurchaseOrder&EntityKeyID='+OrderID , "RadWindow1");

PopupWindow.Center();

}

function refreshParent(arg)

{

//Get reference to RadAjaxManager on page

if (radManager == null)

var radManager = $find('<%= RadAjaxManager.GetCurrent(this).ClientID %>');

//Fire ajax request (optionally pass an event arg value)

radManager.ajaxRequest(arg);

}

in parentAspx.cs

#region RadAjax CodeBlock

RadAjaxManager rjxManager = RadAjaxManager.GetCurrent(this);

//Create a new delegate to handle the AjaxRequest event

rjxManager.AjaxRequest += new RadAjaxControl.AjaxRequestDelegate(rjxManagerPurchaseOrder_AjaxRequest);

rjxManager.AjaxSettings.AddAjaxSetting(rjxManager, rjxPanel_PurchaseOrder);

#endregion

#region Rad Ajax Event

protected void rjxManagerPurchaseOrder_AjaxRequest(object sender, AjaxRequestEventArgs e)

{

if (e.Argument == "Rebind")

{

Session["currentObject"] = null;

RadGrid_Orders.Rebind();

}

#endregion

and another page which will show in radwindow

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">

<script type="text/javascript">

function GetRadWindow()

{

var oWindow = null;

if (window.radWindow) oWindow = window.radWindow; //Will work in Moz in all cases, including clasic dialog

else if (window.frameElement.radWindow) oWindow = window.frameElement.radWindow;//IE (and Moz as well)

return oWindow;

}

function closeRadWindow()

{

GetRadWindow().Close();

}

function CloseAndRebind(args)

{

GetRadWindow().Close();

GetRadWindow().BrowserWindow.refreshParent(args);

}

</script>

</telerik:RadCodeBlock>

and on close button :-
<asp:Button ID="btnClose_Top" runat="server" Text="Close"
                        OnClientClick="javascript:closeRadWindow();return false;" />

and on save button

string script = "<script>CloseAndRebind('Rebind')</" + "script>";
                ScriptManager.RegisterStartupScript(this, this.GetType(), "CloseAndRebind", script, false);

PlZ plz tell the solution

answered on 13 Sep 2010, 02:20 PM

Hello Gajanan ,

Try switching the lines in your CloseAndRebind() function:

function CloseAndRebind(args)
{
GetRadWindow().BrowserWindow.refreshParent(args);
GetRadWindow().Close();
}

i.e. first to call the parent page refreshing function and to close the window after that.
If this doesn't help, please open a support ticket and send a sample project so we can investigate further.

Best wishes,
Georgi Tunev
the Telerik team

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