DomHelper - Line 243 ext-all-debug.js

[Neotk]

Yo Ext JS guys!

Here, i got a problem at a MessageBox creation:

 var range = el.ownerDocument.createRange();

This line says "Microsoft JScript runtime error: Object doesn't support this property or method"

How I am creating the Msg:
[CODE]
Ext.get('btnCloseChat').on('click', function(e){Ext.Msg.alert('Teste', 'S

[aconran]

I see this error most often in IE when the first node in the body is a textnode.

What browser? What does your markup look like?

[Neotk]

You are right. Browser is IE and the firstNode is a text node.
But in firefox everything works ok.

[aconran]

Eliminate the textnode and you should be okay. You can always wrap a relevant tag around it if you actually need text there.

[Neotk]

You are totally right! Thank you for your answer.
(I solved this problem a long time ago, but it'll help people to know that this is the solution.)

Thank you!

[jratcliff]

Eliminate the textnode and you should be okay. You can always wrap a relevant tag around it if you actually need text there.

Thanks Aaron, this got me too today when I was trying to add an iframe to an existing Ext.Window. I had created the window with the html property simply set as 'Loading...' and thus a textnode was created. When I called the add method to Ext.Window it failed because el.ownerDocument.createRange didn't exist for the textnode. So I changed to '<p>Loading...</p>' and all worked.