I have a page that contains a RadWindow with RadPageViews. When the window is loaded it dynamically creates a pageview and adds a user control that contains a RadEditor control. Everything loads fine however it is throwing a javascript error "c.parentNode is null" after the page is saved.
After doing some debugging it looks like it is occuring when the dispose method is called for the RadEditor. Any help is appreciated.
On Load: c.parentNode = ctl00_ContentPlaceHolder1_RadWindow1_C_PageComponent1_RadEditor1Center
Protected
Sub
RadMultiPage1_PageViewCreated(
ByVal
sender
As
Object
,
ByVal
e
As
Telerik.Web.UI.RadMultiPageEventArgs)
Handles
RadMultiPage1.PageViewCreated
Dim
pageComponent
As
PageComponent = LoadControl(
"Editor.ascx"
)
pageComponent.BindData()
e.PageView.Controls.Add(pageComponent)
End
Sub
8 Answers, 1 is accepted
0

Chris
Top achievements
Rank 1
answered on 18 Jan 2011, 03:39 PM
This error is preventing me from launching my application. Any help is greatly appreciated.
0
Hello Chris,
We are not aware of this problem and we cannot debug it only using the provided information because there are a lot of c.parentNode in the source code.
Could you please isolate the problem in a sample working project and send it for examination by opening a support ticket? Once we receive the project we will debug it and provide a solution.
Kind regards,
Rumen
the Telerik team
We are not aware of this problem and we cannot debug it only using the provided information because there are a lot of c.parentNode in the source code.
Could you please isolate the problem in a sample working project and send it for examination by opening a support ticket? Once we receive the project we will debug it and provide a solution.
Kind regards,
Rumen
the Telerik team
Browse the vast support resources we have to jump start your development with RadControls for ASP.NET AJAX. See how to integrate our AJAX controls seamlessly in SharePoint 2007/2010 visiting our common SharePoint portal.
0

Chris
Top achievements
Rank 1
answered on 19 Jan 2011, 12:31 AM
I have issolated the issue in the attached code. While doing so I uncovered another issue.
Steps to recreate:
1. Open default.aspx
2. Click edit on the item in the grid
3. Click the 2nd tab "Content" in the window and notice the RadEditor works fine.
4. Close the Window and repeat step 2. Notice the RadEditor toolbars do not work. (Proble 1)
5. Click the reload button on the browser and the error is present. In IE8 "Object Required". In Firefox "c.parentNode is null" (Problem 2)
Thank you for your assistance.
MasterPage.aspx
Default.aspx
Default.aspx.vb
ContentEdit.ascx
Steps to recreate:
1. Open default.aspx
2. Click edit on the item in the grid
3. Click the 2nd tab "Content" in the window and notice the RadEditor works fine.
4. Close the Window and repeat step 2. Notice the RadEditor toolbars do not work. (Proble 1)
5. Click the reload button on the browser and the error is present. In IE8 "Object Required". In Firefox "c.parentNode is null" (Problem 2)
Thank you for your assistance.
MasterPage.aspx
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<
html
xmlns
=
"http://www.w3.org/1999/xhtml"
>
<
head
runat
=
"server"
>
<
title
></
title
>
<
asp:ContentPlaceHolder
id
=
"head"
runat
=
"server"
>
</
asp:ContentPlaceHolder
>
</
head
>
<
body
>
<
form
id
=
"form1"
runat
=
"server"
>
<
telerik:RadScriptManager
ID
=
"RadScriptManager1"
runat
=
"server"
>
</
telerik:RadScriptManager
>
<
telerik:RadSkinManager
ID
=
"RadSkinManager1"
runat
=
"server"
Skin
=
"Windows7"
></
telerik:RadSkinManager
>
<
telerik:RadFormDecorator
ID
=
"RadFormDecorator1"
runat
=
"server"
DecoratedControls
=
"All"
/>
<
asp:ContentPlaceHolder
id
=
"ContentPlaceHolder1"
runat
=
"server"
>
</
asp:ContentPlaceHolder
>
</
form
>
</
body
>
</
html
>
Default.aspx
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<
asp:Content
ID
=
"Content1"
ContentPlaceHolderID
=
"head"
Runat
=
"Server"
>
<
script
type
=
"text/javascript"
>
function openNewWin(url) {
var x = window.open(url, 'mynewwin', 'width=1024,height=768,toolbar=1');
x.focus();
}
function onRequestStart(sender, args) {
if (args.get_eventTarget().indexOf("ExportToExcelButton") >= 0 || args.get_eventTarget().indexOf("ExportToWordButton") >= 0 || args.get_eventTarget().indexOf("ExportToCsvButton") >= 0) {
args.set_enableAjax(false);
}
}
function resizeWindow(sender, eventArgs) {
setTimeout("doResizeWindow()", 100);
}
function doResizeWindow() {
var oWnd = $find("<%= RadWindow1.ClientID %>");
oWnd.autoSize()
}
function OnClientCommandExecuting(editor, args) {
var commandName = args.get_commandName();
if (commandName == "ToggleScreenMode") {
if (!editor.isFullScreen()) //if the editor is placed in fullscreen mode
{
$(".TelerikModalOverlay").css("display", "none");
fullscreen = true;
}
else {
$(".TelerikModalOverlay").css("display", "");
}
}
}
</
script
>
</
asp:Content
>
<
asp:Content
ContentPlaceHolderID
=
ContentPlaceHolder1
runat
=
"server"
>
<
telerik:RadAjaxManager
ID
=
"RadAjaxManager1"
runat
=
"server"
>
<
ClientEvents
OnRequestStart
=
"onRequestStart"
/>
<
AjaxSettings
>
<
telerik:AjaxSetting
AjaxControlID
=
"RadGrid1"
>
<
UpdatedControls
>
<
telerik:AjaxUpdatedControl
ControlID
=
"RadGrid1"
/>
<
telerik:AjaxUpdatedControl
ControlID
=
"RadWindow1"
/>
</
UpdatedControls
>
</
telerik:AjaxSetting
>
</
AjaxSettings
>
</
telerik:RadAjaxManager
>
<
telerik:RadAjaxLoadingPanel
ID
=
"RadAjaxLoadingPanel1"
runat
=
"server"
></
telerik:RadAjaxLoadingPanel
>
<
telerik:RadGrid
ID
=
"RadGrid1"
runat
=
"server"
AutoGenerateColumns
=
"False"
AllowPaging
=
"True"
AllowSorting
=
"True"
AlowFilteringByColumn
=
"true"
GridLines
=
"None"
>
<
PagerStyle
Mode
=
"NumericPages"
AlwaysVisible
=
"true"
/>
<
HeaderContextMenu
EnableImageSprites
=
"True"
CssClass
=
"GridContextMenu GridContextMenu_Default"
></
HeaderContextMenu
>
<
ExportSettings
HideStructureColumns
=
"true"
ExportOnlyData
=
"true"
IgnorePaging
=
"true"
OpenInNewWindow
=
"true"
></
ExportSettings
>
<
MasterTableView
AllowFilteringByColumn
=
"True"
ShowFooter
=
"false"
CommandItemDisplay
=
"Top"
DataKeyNames
=
"PageId"
>
<
CommandItemSettings
ShowExportToWordButton
=
"true"
ShowExportToExcelButton
=
"true"
ShowExportToCsvButton
=
"true"
AddNewRecordText
=
"Add New Page"
/>
<
EditFormSettings
>
<
EditColumn
UniqueName
=
"EditCommandColumn1"
></
EditColumn
>
</
EditFormSettings
>
<
PagerStyle
Mode
=
"NextPrevNumericAndAdvanced"
/>
<
Columns
>
<
telerik:GridBoundColumn
UniqueName
=
"PageName"
DataField
=
"PageName"
SortExpression
=
"PageName"
HeaderText
=
"Page Name"
></
telerik:GridBoundColumn
>
<
telerik:GridEditCommandColumn
ButtonType
=
"ImageButton"
UniqueName
=
"EditCommandColumn"
HeaderStyle-Width
=
"20"
>
<
HeaderStyle
Width
=
"20px"
></
HeaderStyle
>
</
telerik:GridEditCommandColumn
>
</
Columns
>
</
MasterTableView
>
<
ClientSettings
Selecting-AllowRowSelect
=
"true"
>
<
Selecting
AllowRowSelect
=
"True"
></
Selecting
>
</
ClientSettings
>
</
telerik:RadGrid
>
<
telerik:RadWindowManager
ID
=
"RadWindowManager1"
ShowContentDuringLoad
=
"false"
VisibleStatusbar
=
"false"
ReloadOnShow
=
"true"
IconUrl
=
"favicon.ico"
runat
=
"server"
EnableShadow
=
"true"
style
=
"z-index:20000"
>
<
Windows
>
<
telerik:RadWindow
ID
=
"RadWindow1"
runat
=
"server"
VisibleOnPageLoad
=
"false"
EnableEmbeddedScripts
=
"true"
IconUrl
=
"favicon.ico"
Animation
=
"FlyIn"
Behaviors
=
"Close"
Modal
=
"true"
Width
=
"780"
Height
=
"600"
Title
=
"Add/Edit Page"
DestroyOnClose
=
"true"
>
<
ContentTemplate
>
<
telerik:RadTabStrip
ID
=
"RadTabStrip2"
runat
=
"server"
CausesValidation
=
"false"
MultiPageID
=
"RadMultiPage1"
OnClientTabSelected
=
"resizeWindow"
>
<
Tabs
>
<
telerik:RadTab
Text
=
"General"
Selected
=
"true"
></
telerik:RadTab
>
</
Tabs
>
</
telerik:RadTabStrip
>
<
telerik:RadMultiPage
runat
=
"server"
ID
=
"RadMultiPage1"
SelectedIndex
=
"0"
>
<
telerik:RadPageView
runat
=
"server"
ID
=
"RadPageView1"
TabIndex
=
"0"
>
<
div
style
=
"width:600px;"
>Some Form</
div
>
</
telerik:RadPageView
>
</
telerik:RadMultiPage
>
<
div
class
=
"buttonContainer"
>
<
asp:Button
ID
=
"btnSubmit"
Text
=
"Submit"
runat
=
"server"
/>
</
div
>
</
ContentTemplate
>
</
telerik:RadWindow
>
</
Windows
>
</
telerik:RadWindowManager
>
</
asp:Content
>
Default.aspx.vb
Imports System.Data
Imports Telerik.Web.UI
Partial Class _Default
Inherits System.Web.UI.Page
Private data As New DataTable
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
BindData()
End If
End Sub
Private Sub BindData()
data.Columns.Add("PageId")
data.Columns.Add("PageName")
Dim row As DataRow = data.NewRow()
row("PageId") = 1
row("PageName") = "Test"
data.Rows.Add(row)
RadGrid1.DataSource = data
RadGrid1.DataBind()
End Sub
Protected Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As GridNeedDataSourceEventArgs) Handles RadGrid1.NeedDataSource
RadGrid1.DataSource = data
End Sub
Protected Sub RadGrid1_ItemCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles RadGrid1.ItemCommand
If e.CommandName = RadGrid.InitInsertCommandName Then
RadWindow1.VisibleOnPageLoad = True
PageId = 0
e.Canceled = True
ElseIf e.CommandName = RadGrid.EditCommandName Then
RadWindow1.VisibleOnPageLoad = True
PageId = e.Item.OwnerTableView.DataKeyValues(e.Item.ItemIndex)("PageId")
e.Canceled = True
Else
RadWindow1.VisibleOnPageLoad = False
Exit Sub
End If
For Each view As Control In RadMultiPage1.Controls
If view.ID <> "RadPageView1" Then
RadMultiPage1.Controls.Remove(view)
End If
Next
RadTabStrip2.Tabs.Clear()
RadTabStrip2.Tabs.Add(New RadTab("General"))
Dim radTab As New RadTab("Content")
Dim radPageView As New RadPageView()
radPageView.ID = "PageView_Content1"
radPageView.TabIndex = 1
RadMultiPage1.PageViews.Add(radPageView)
RadTabStrip2.Tabs.Add(radTab)
End Sub
Protected Sub RadMultiPage1_PageViewCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadMultiPageEventArgs) Handles RadMultiPage1.PageViewCreated
If e.PageView.ID <> "RadPageView1" Then
Dim component As UserControl = LoadControl("ContentEdit.ascx")
component.ID = "PageComponent1"
e.PageView.Controls.Add(component)
End If
End Sub
Private Property PageId() As Integer
Get
Return ViewState("PageId")
End Get
Set(ByVal value As Integer)
ViewState("PageId") = value
End Set
End Property
Protected Sub btnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSubmit.Click
RadWindow1.VisibleOnPageLoad = False
End Sub
End Class
ContentEdit.ascx
<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<
div
class
=
"formContainer"
>
<
div
class
=
"columnLayout"
>
<
fieldset
>
<
div
class
=
"fieldContainer required oneColumn pos1"
>
<
label
for
=
"tbxField"
>
<
span
class
=
"requiredIcon"
>*</
span
>
<
span
class
=
"labelText"
runat
=
"server"
id
=
"Span2"
>Content</
span
>
<
span
class
=
"labelColon"
>:</
span
>
</
label
>
<
span
class
=
"formField"
>
<
telerik:RadEditor
ID
=
"RadEditor1"
runat
=
"server"
Width
=
"690px"
OnClientCommandExecuting
=
"OnClientCommandExecuting"
></
telerik:RadEditor
>
</
span
>
</
div
>
</
fieldset
>
</
div
>
</
div
>
0
Hi Chris,
I created a sample web site using the provided markup and code and reproduced the problem. After that I fixed it and attached my test project to my reply.
All the best,
Rumen
the Telerik team
I created a sample web site using the provided markup and code and reproduced the problem. After that I fixed it and attached my test project to my reply.
All the best,
Rumen
the Telerik team
Browse the vast support resources we have to jump start your development with RadControls for ASP.NET AJAX. See how to integrate our AJAX controls seamlessly in SharePoint 2007/2010 visiting our common SharePoint portal.
0

Chris
Top achievements
Rank 1
answered on 21 Jan 2011, 10:40 PM
Thanks Rumen,
That fixed problem 1 however it uncovered a new problem. Now when the window is opened for the second time the RadEditor height grows beyond the set height.
Problem 2 still exists. Another way of testing it is by clicking the submit button under the RadEditor.
Thanks again for your assistance.
That fixed problem 1 however it uncovered a new problem. Now when the window is opened for the second time the RadEditor height grows beyond the set height.
Problem 2 still exists. Another way of testing it is by clicking the submit button under the RadEditor.
Thanks again for your assistance.
0
Accepted
Hi Chris,
1) To fix the height issue attach the following function
to the OnClientShow property of RadWindow:
2) The second problem will be fixed for the upcoming Q1 2011 release of RadControls for ASP.NET AJAX. I fixed it in the project by adding the following function in the Default.aspx page:
and attaching it to the OnClientLoad property of RadEditor in the ContentEdit.ascx file:
After the upgrade to Q1 2010 you should delete this function and remove the OnClientLoad property.
All the best,
Rumen
the Telerik team
1) To fix the height issue attach the following function
//Telerik New
function OnClientShow(sender) {
setTimeout(enableRadEditor, 0);
}
to the OnClientShow property of RadWindow:
<telerik:RadWindow ID="RadWindow1" runat="server" VisibleOnPageLoad="false" EnableEmbeddedScripts="true"
IconUrl="favicon.ico" OnClientShow="OnClientShow" ...
2) The second problem will be fixed for the upcoming Q1 2011 release of RadControls for ASP.NET AJAX. I fixed it in the project by adding the following function in the Default.aspx page:
//Telerik New
function OnClientLoad(editor) {
editor._oldRegisterModeChangeHandler = editor._registerModeChangeHandler;
editor._registerModeChangeHandler = function (attachEvent) {
if (!this._getModeButtonsWrapper()) return;
this._oldRegisterModeChangeHandler(attachEvent);
};
}
and attaching it to the OnClientLoad property of RadEditor in the ContentEdit.ascx file:
<telerik:RadEditor ID="RadEditor1" Height="480" runat="server" Width="690px" OnClientCommandExecuting="OnClientCommandExecuting"
OnClientLoad="OnClientLoad">
</telerik:RadEditor>
After the upgrade to Q1 2010 you should delete this function and remove the OnClientLoad property.
All the best,
Rumen
the Telerik team
Browse the vast support resources we have to jump start your development with RadControls for ASP.NET AJAX. See how to integrate our AJAX controls seamlessly in SharePoint 2007/2010 visiting our common SharePoint portal.
0

Chris
Top achievements
Rank 1
answered on 26 Jan 2011, 04:52 PM
Thanks Rumen,
Your fix worked great. I appreciate your assistance :)
Your fix worked great. I appreciate your assistance :)
0

Chen
Top achievements
Rank 1
answered on 03 Jun 2012, 01:02 PM
This problem still exists.
This is the scenario:
RadMultiPage with several pages.
USING ONLY KEYBOARD NAVIGATION! - (the problem does not appear when using the mouse)
Using "Tab" to reach a button and hit "Enter" on a button that moves from the 1st to the 2nd page (through calls to RadMultiPage).
Using "Tab" to reach an "Edit" button in a FormView. Hit "Enter".
c.parentNode is null
Workaround, increase RequestQueueSize
I have the workaround, and do not have the time to create a demo project for you, but please try to reproduce and resolve.
This is the scenario:
RadMultiPage with several pages.
USING ONLY KEYBOARD NAVIGATION! - (the problem does not appear when using the mouse)
Using "Tab" to reach a button and hit "Enter" on a button that moves from the 1st to the 2nd page (through calls to RadMultiPage).
Using "Tab" to reach an "Edit" button in a FormView. Hit "Enter".
c.parentNode is null
Workaround, increase RequestQueueSize
<
telerik:RadAjaxManager
ID
=
"RadAjaxManager1"
runat
=
"server"
DefaultLoadingPanelID
=
"RadAjaxLoadingPanel1"
RequestQueueSize
=
"2"
>
I have the workaround, and do not have the time to create a demo project for you, but please try to reproduce and resolve.