I've been working with the MM Windows Forms Jump Starts and noticed some inconsistent behavior in displaying business rules to the user.

When the saving a blank Customer Orders form, if Country is blank,:

this.AddRequiredField("ShipCountry");

The icon shows up by itself, i.e., the other broken business rules don't display.
It's preferrable that they all display to the user at the same time.

Also, request in the next version the ability to add a custom message to AddRequiredField(), i.e,.

this.AddRequiredField("ShipCountry", "Must specify a Country.");

Thanks!