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Error: object doesn't support property or method 'attachevent' [message #1385612]

Tue, 10 June 2014 03:08

Tomas Normark

Messages: 8
Registered: September 2010

Junior Member

I want to run an Eclipse RAP application integrated in a Windows Presentation Foundation (WPF) application that we have. To do that I use the WPF browser widget which is just Internet Explorer 11 running in a widget in WPF.

However when I set the URL of the web browser widget to load the application I get the error:

object doesn't support property or method 'attachevent'

When searching for this I see that support for attachevent has been removed in Internet Explorer 11 and that addEventListener should be used instead.

When running the application directly in an Internet Explorer 11 web browser it works fine.

Does anyone know what might be going on here? Is there some code in RAP that tries to detect the IE version to account for the removed attachevent method that might fail when running IE11 in the WPF browser widget?

Best regards,

Tomas Normark

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Re: Error: object doesn't support property or method 'attachevent' [message #1385664 is a reply to message #1385612]

Tue, 10 June 2014 10:56

Ivan Furnadjiev

Messages: 2426
Registered: July 2009
Location: Sofia, Bulgaria

Senior Member

Hi Tomas,
when using IE in a browser control (SWT Browser widget or other), it
does not run in "standard" mode or it is not identified as IE11. Please
load http://www.useragentstring.com/ in your WPF browser widget and post
here the result.
Best,
Ivan

--
Ivan Furnadjiev

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Re: Error: object doesn't support property or method 'attachevent' [message #1385688 is a reply to message #1385664]

Tue, 10 June 2014 13:46

Tomas Normark

Messages: 8
Registered: September 2010

Junior Member

Hi Ivan,

This is the user agent string that I get:

Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Win64; x64; Trident/7.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; InfoPath.3)

It appears to identify itself as an IE7 browser when running in the WPF widget. On the other hand if I run the URL you recommended in a standalone IE11 I get:

Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko

Do you have any recommendations about how to proceed considering this information?

Best regards,

Tomas Normark

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Re: Error: object doesn't support property or method 'attachevent' [message #1385765 is a reply to message #1385688]

Wed, 11 June 2014 06:18

Tomas Normark

Messages: 8
Registered: September 2010

Junior Member

I managed to solve this now by adding a registry key to force IE to run as IE11 in the WPF browser widget as described on this page:

http://weblog.west-wind.com/posts/2011/May/21/Web-Browser-Control-Specifying-the-IE-Version

Thanks for your hints in looking into the user agent string Ivan.

Best regards,

Tomas Normark

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