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Validation on navigation properties
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cefernan View Drop Down
Groupie
Groupie


Joined: 13-Jul-2012
Posts: 70 		Post Options Post Options   Quote cefernan Quote  Post ReplyReply Direct Link To This Post Topic: Validation on navigation properties
    Posted: 07-Dec-2012 at 12:38pm
Hi,

I have the following entities in my database:

Filter FilterCategory
-------------------- --------------------
FilterID FilterCategoryID
Name Name
FilterCategoryID (FK)

* Every property is required.

I have a screen responsible to edit data of Filter. So, when I save a new Filter without filling any field on the screen, I receive a message "Name is required". But, both Name and FilterCategory are required. If I fill just Name, I receive an FK error because of "empty" FilterCategory. 

It's never executed the validation in navigation properties.

Is it possible to do that?

PS: I use database first.
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kimj View Drop Down
IdeaBlade
IdeaBlade
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Joined: 09-May-2007
Posts: 1391 		Post Options Post Options   Quote kimj Quote  Post ReplyReply Direct Link To This Post Posted: 07-Dec-2012 at 4:28pm
See the NullEntityVerifier in this thread - http://www.ideablade.com/forum/forum_posts.asp?TID=2540.  The thread deals with DF2010, but validation in DF2012 is unchanged (so far).   Using an IVerifierProvider implementation you can add the custom verifier for the navigation property.  More information on custom verifiers here - http://drc.ideablade.com/devforce-2012/bin/view/Documentation/validation-create-custom-verifier.
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cefernan View Drop Down
Groupie
Groupie


Joined: 13-Jul-2012
Posts: 70 		Post Options Post Options   Quote cefernan Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2012 at 10:51am
Great Kim.

I created the NullEntityVerifier and customized the DevForce code generation template to mark automatically the navigations as required when necessary.

Thank you.
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kimj View Drop Down
IdeaBlade
IdeaBlade
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Joined: 09-May-2007
Posts: 1391 		Post Options Post Options   Quote kimj Quote  Post ReplyReply Direct Link To This Post Posted: 10-Dec-2012 at 12:47pm
Excellent!  Thanks for the update.
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