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c#entity-frameworkdata-annotationsinotifypropertychanged
Charles W
Charles W

Reputation: 2292

Entity Framework - Check if property is mapped

I'm using Entity Framework and am triggering a property changed event, where I'd like to update a property if the property that changed is mapped.

protected void FooPropertyChanged(object sender, PropertyChangedEventArgs e)
{
    var notMappedArray = typeof(Foo).GetProperty(e.PropertyName).GetCustomAttributes(typeof(NotMappedAttribute), false); // I thought this might return null if the property did not have the attribute. It does not.
    //if (notMappedArray == null)
    UnitOfWork.Value.GetRepository<Foo>().Update(MyFoo);
}

What is the best way to find if a property sent to this event is mapped in entity framework?

Edit: I've seen this question. However, it seems like the answer is going a little overboard, and doesn't quite do what I need.

Upvotes: 3

Views: 2593

Answers (1)

Charles W
Charles W

Reputation: 2292

My problem was in my Foo class. I apparently had a floating [NotMapped] attribute far above the property I was checking. I ended up using something like this:

protected void FooPropertyChanged(object sender, PropertyChangedEventArgs e)
{
    var notMapped = typeof(Foo).GetProperty(e.PropertyName).GetCustomAttributes(typeof(NotMappedAttribute), false);
    if (notMapped.Length == 0)
    {
        UnitOfWork.Value.GetRepository<Foo>().Update(MyFoo);
    }
}

Upvotes: 9

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