Hi there.

LLBL 3.0.

I'm mapping models to entities via automapper. A complaint I have received is that null values are not being persisted to the database (for an UPDATE scenario). I can see that I need to manually change IsChanged on the field to true when I am setting a value to null.

I can tack on extra instructions to automapper, but when the fields are the same name and same type I don't want to have to create a definition for each field to manage this.

So I came up with this (added to the entity definition).

protected override void OnSetValueComplete(int fieldIndex)
        {
            if (this.Fields[fieldIndex].CurrentValue == null &&
                !this.Fields[fieldIndex].IsChanged)
            {
                this.Fields.IsDirty = true;
                this.Fields[fieldIndex].IsChanged = true;
            }
            base.OnSetValueComplete(fieldIndex);
        }

I was wondering if this would create any issues? I'm using this in a asp.net application, never for windows.

Are you fetching the entity before updating it? If so what's the DBValue of the field? Would you please post the update code?

No I'm not fetching the entity before updating it.

I can't post the update code as there is none. AutoMapper pushes the values for my model class to the entity class.

What you have done is correct.