Johan Åhlén

Johan Åhlén's blog about life, universe and everything.

June 2010 - Posts

My StreamInsight samples have been moved

I've decided to move my samples to the "official" StreamInsight sample site on Codeplex, The advantage is that there they will be co-located with other useful StreamInsight samples.

My currently published samples are:

Twitter input adapter

Yahoo Finance input adapter

I'll keep updating with more samples in the future.

Posted: Jun 27 2010, 10:02 PM by jahlen
Filed under:
StreamInsight - how to solve the "Input string was not in a correct format" bug

Are you running StreamInsight in a non-English speaking country? Then you may have run into the problem of getting the exception "Input string was not in a correct format" from StreamInsight when you try to run a query that contains a non-integer number. The problem is that some countries (like Sweden) use comma as decimal separator instead of a dot and that causes problems with the XML serialization/deserialization within StreamInsight. I've reported this as a bug to Microsoft and you can read more about it here.


Yes, I've found a workaround. You can change the CurrentCulture of your thread just before creating your query templates or calling ToQuery():

Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;

After creating your query tempates or instantiating your queries you can change the culture back to your original again if needed.


Posted: Jun 04 2010, 09:59 PM by jahlen
Filed under: