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HomeHomeDevelopment and...Development and...Building ExtensionsBuilding ExtensionsModulesModulesUpgraded to DNN 5.4.1 and now nullable dates will not work with my custom moduleUpgraded to DNN 5.4.1 and now nullable dates will not work with my custom module
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4/28/2010 6:01 PM
 
Opher Aloni

www.inclover.co.il
Joined: 7/29/2005
Posts: 8

I've just upgraded to DNN 5.4.1 and my custom module is now broken. I receive the following error:

A critical error has occurred.
Invalid cast from 'System.DateTime' to 'System#Nullable`1##System#DateTime, mscorlib, Version=2#0#0#0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]'.

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

Am I doing something wrong here or is this some kind of bug?
 
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4/29/2010 1:09 AM
 
cdeelsny

Joined: 12/22/2006
Posts: 1

 No it's not just you, something changed.  My modules with this are breaking.
 
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5/4/2010 2:20 PM
 
pyulia

Joined: 6/26/2009
Posts: 11
I have exactly the same error in one of my custom modules. I upgraded from 5.3.1. to 5.4.1. this morning. It looks like I'll have to roll back at least for the time being. If someone has a solution, please post it to this board. Thank you!
 
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5/4/2010 7:45 PM
 
Grant Drury-Green

Joined: 6/23/2005
Posts: 4
I have a workaround for this issue - but it's requires a little recoding.

Your "Info" class (Business Object) should be upgraded to implement DotNetNuke.Entities.Modules.IHydratable

In the fill method - you can handle the population of the object properties from the passed in DataReader;

e.g.   

if (dr[7] != DBNull.Value)
     mDateTo = (DateTime)dr[7];
 
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