DevForce Community Forum : Verifier Engine Throws Invalid argument exception http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2009 : Verifier Engine Throws Invalid argument exception Sun, 12 Apr 2026 02:28:41 -700 Wed, 09 Dec 2009 10:25:01 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=1580 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Verifier Engine Throws Invalid argument exception : The error is occurring because... http://www.ideablade.com/forum/forum_posts.asp?TID=1580&PID=5916#5916 Author: davidklitzke
Subject: 1580
Posted: 09-Dec-2009 at 10:25am

The error is occurring because the collection of entities to be verified is being modified while the Verfier Engine is iterating over the collection of entities.  Check your verification logic to see whether it is modifying any of the entities in the collection.  Check also to see whethether a PropertyChanged Event Handler is being called and whether that Event Handler is modifying any of the entities.]]> Wed, 09 Dec 2009 10:25:01 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1580&PID=5916#5916 Verifier Engine Throws Invalid argument exception : While try to verify newly created... http://www.ideablade.com/forum/forum_posts.asp?TID=1580&PID=5915#5915 Author: rutav
Subject: 1580
Posted: 08-Dec-2009 at 10:50pm

While try to verify newly created record ,
i getting InvalidOperationException with following Mesage
"Collection was modified; enumeration operation may not execute."
 
Code :
 
IdeaBlade.Validation.VerifierEngine engine = this.VerifierEngine; ;
VerifierResultCollection result = engine.Execute(this);  --> Getting exception while calling Execute method
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