Cast nullable bool to bool

Question

I have an object AlternateName.IsMaidenName

I want to cast that to a checkbox - IsMaidenName

It wont let me cast that as it says Cannot convert source type nullable to target type bool.

I've had this issue in other spots within our application but I wanted to throw it out there for a better way to handle these issues.

IsMaidenNameChecked = AlternateName.IsMaidenName;

Answer 1

It is quite logical that you cannot cast a nullable bool to a bool, since, what value should the bool have, when the nullable contains null ?

What I would do, is this:

IsMaidenNameChecked = AlternateName.IsMaidenName ?? false;

Answer 2

IsMaidenName.Checked = AlternateName.IsMaidenName.GetValueOrDefault();

See: http://msdn.microsoft.com/en-us/library/72cec0e0.aspx