Hi meeli,

I was not able to reproduce your issue here. Can you provide a test solution demonstrating the problem?

Attached is my test solution. (using sdk datagrid) In it, after I add a new record, it validates properly if I delete data from a non-nullable field. (before or after the save)

Kind regards,

Silvio.

 

I am taking a look at this and will follow up shortly.

In a DevForce Silverlight 4 application I have an entity that has a not nullable field called "Name" (amoung others)

In my Viewmodel I use a async query to get the data from the server and then I fill the results into an ObervableCollection<T> which is then bound to a Grid (Itemsource) on the view

That works fine, the records appear in the grid and I can edit them. When I delete the content of the Field "Name" it turns red and an error message pops up. Just as one would expect.

I then go and add a new Entity to my Collection, so that it ends up in the database

Manager ist my EntityManager, Persons is my ObservableCollection<Person> that is bound to the grid

I do something like this:

            var et = new Person();            et.Id = Guid.NewGuid();            et.Name = "New Name";

            Manager.AddEntity(et);