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9/27/2010 5:52 AM
 
Jayaraj S

Joined: 10/13/2008
Posts: 22
I've just upgraded to DNN 5.5.1 and my custom module is now broken. I receive the following error: "DotNetNuke.Services.Exceptions.ModuleLoadException: Invalid cast from 'System.Int32' to 'System.Nullable` " . This happens when my custom module interacts with a database which has nullable fields

My custom module is using an info class with a nullable fields, which is supposed to get hydrated using the CBO.FillCollection method from a controller class. This worked in the previous version 5.1.4, but now, after the upgrade to 5.5.1, I'm receiving these cast errors.

Am I doing something wrong here or is this some kind of bug?
 
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9/27/2010 11:06 AM
 
Mitchel Sellers


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www.mitchelsellers.com
Joined: 1/24/2007
Posts: 7846
My guess is that this is related to issues similar to this item - http://local.dotnetnuke.com/Community/Forums/tabid/795/forumid/111/postid/206319/scope/posts/Default.aspx

If you can go the route of implementing IHydratable you should be fine.
-Mitchel Sellers
Microsoft MVP, ASPInsider, DNN MVP
CEO/Director of Development - IowaComputerGurus Inc.
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Visit mitchelsellers.com for my mostly DNN Blog and support forum.

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9/28/2010 12:25 AM
 
Jayaraj S

Joined: 10/13/2008
Posts: 22
So if i understand correctly the only way out for me is to modify the source code of all my modules ? There are 12 custom modules deployed on 10 customer sites. I would really want to avoid modifying the source code if possible
Are there any plans of DNN to have this bug (if i can call it so) to be fixed in future releases? 
 
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9/28/2010 4:40 AM
 
Sebastian Leupold


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www.dnnwerk.de
Joined: 3/8/2004
Posts: 46212
if you didn't implement your custom data layer according to the dev guidelines, you might need to correct your module to keep it working with latest version of the framework, sorry. Same applies, if you are implementing deprecated methods.
Cheers from Germany,
Sebastian Leupold

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

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