ASPxHtmlEditor - "Can not get 'ownerDocument' property null reference or undefined "JavaScript exception in IE11

Hi All,

I think, there is a bug in v14.1.3 especially at XAF

ERROR:
A javascript exception will appear like that:
"Runtime Error in JavaScript: Can not get 'ownerDocument' property null reference or undefined"

DESCRIPTION:
If you editor displays ONLY Preview Mode this error occurs.

In the XAF, you can reproduce this error like that :

if (you are bind an ASPxHtmlEditor to Domain Object Field)
   and
(
    if you're in DetailView mode as View (Not Edit so it means Read-Only Mode)
    or
    if your Detail View Field is Read-Only (via Add Column in Model Editor)
)

then

Your ASPxHtmlEditor will be Read-Only.
So it will not show Design View and Html View as a Read-Only
And if you are enter to DetailView and do some things you will that BOOOOOOOM.

WORKAROUND SOLUTION:
You must set TRUE one of views DesignView or HtmlView WHEN the editor Created.

C#
editor.Settings.AllowDesignView = true;  
or  
editor.Settings.AllowHtmlView = true;  

Ofc you can set the other values to more user friendly as a read-only field. For Example:

C#
editor.ActiveView = HtmlEditorView.Preview;  

editor.Settings.AllowContextMenu = DevExpress.Utils.DefaultBoolean.False;  

editor.ToolbarMode = HtmlEditorToolbarMode.None;  

You may create a sample ViewController for the ASPxHtmlEditor like this:

C#
public class HTMLEditorController : ViewController<DetailView>  
 {  
     protected override void OnActivated()  
     {  
         base.OnActivated();  
         if (View.ViewEditMode == DevExpress.ExpressApp.Editors.ViewEditMode.Edit)  
         {  
             foreach (ASPxHtmlPropertyEditor pe in View.GetItems<ASPxHtmlPropertyEditor>())  
             {  
                 if (pe.Control == null)  
                 {  
                     pe.ControlCreated += new EventHandler<EventArgs>(pe_ControlCreated);  
                 }  
                 else  
                 {  
                     CustomizeEditorControl(pe, pe.Editor);  
                 }  
             }  
         }  
     }  

     protected override void OnDeactivated()  
     {  
         if (View.ViewEditMode == DevExpress.ExpressApp.Editors.ViewEditMode.Edit)  
         {  
             foreach (ASPxHtmlPropertyEditor pe in View.GetItems<ASPxHtmlPropertyEditor>())  
             {  
                 pe.ControlCreated -= new EventHandler<EventArgs>(pe_ControlCreated);  
             }  
         }  

         base.OnDeactivated();  
     }  

     void pe_ControlCreated(object sender, EventArgs e)  
     {  
         ASPxHtmlPropertyEditor pe = (ASPxHtmlPropertyEditor)sender;  
         if (pe!=null)  
             CustomizeEditorControl(pe, pe.Editor);  
     }  
     private static void CustomizeEditorControl(ASPxHtmlPropertyEditor pe, ASPxHtmlEditor editor)  
     {  
         if (editor != null)  
         {  
             editor.SettingsImageUpload.UploadImageFolder = "~/Images/Uploads";  
             if (pe.AllowEdit == false)  
             {  
                 editor.Settings.AllowDesignView = true;  
                 editor.ActiveView = HtmlEditorView.Preview;  
                 editor.Settings.AllowContextMenu = DevExpress.Utils.DefaultBoolean.False;  
                 editor.ToolbarMode = HtmlEditorToolbarMode.None;  
             }  
         }  
     }  
 }  

Best Regards Mert Eşsiz