DevForce Community Forum : Validation Upon Save

Validation Upon Save : Much thanks, Silvio.

Wed, 09 Mar 2011 05:40:57 -700

Author: jipock
Subject: 2548
Posted: 09-Mar-2011 at 5:40am

Much thanks, Silvio.

Validation Upon Save : Hi jipock, Assuming that the...

Tue, 08 Mar 2011 16:47:50 -700

Author: sbelini
Subject: 2548
Posted: 08-Mar-2011 at 4:47pm

Hi jipock,

Assuming that the entity type you are looking for is Employee, the Property is LastName, and you are validating only new entities:

protected override bool ValidateSave() {

var em = EntityManager;

var foundEntities = em.FindEntities(typeof(Employee), EntityState.Added);

foreach (Employee entity in foundEntities.Cast<Object>().ToList()) {

if (entity.LastName == null) {

em.RemoveEntity(entity);

}

return base.ValidateSave();

}

Note that, back in the client, while the successfully saved entities were updated to EntityState.Unchanged, the "unsaved" entities still have EntityState.Added.

Silvio.

Edited by sbelini - 08-Mar-2011 at 5:21pm

Validation Upon Save : Good Afternoon, I'm attempting...

Tue, 08 Mar 2011 10:20:39 -700

Author: jipock
Subject: 2548
Posted: 08-Mar-2011 at 10:20am

Good Afternoon,

I'm attempting now to validate an entity upon save that is Property1 on a specific entity type is null then stop the save and throw an exception.

I'm not finding a good way to do this... I thought to look into the EntityServerSaveInterceptor, but ValidateSave() doesn't take parameters, nor do I find a way of grabbing the entities being saved (and manually loop through all of them). The entity itself does have PropertyInterceptors for individual properties (before Set, After Set, etc.), but I don't want to check it until Save time.

Any suggestions on this?