How to set minOccurs to 1

Question

I' building an ASP.NET web service.

I've got my code defined as below, but I can't figure out how to the the wsdl to specify the minOccurs of the FirstName and LastName properties. I want those as required, and can not be empty. Is it possible?

[WebMethod()]
public void TestMethod(TestClass Test)
{
    ...
}

[Serializable]
public class TestClass
{
    public string FirstName { get; set; }
    public string LastName { get; set; }    
}

Answer 1

Strings are reference types and so by definition nullable. If your property was an integer minoccurs would have been 1.

You can force the Serializer not to allow it to be null, by putting. [XmlElement("name", IsNullable=false)]
above the property.

Edit: I meant reference types instead of value types. Thnx Joren!

Answer 2

It turns out that the WSDL is not used to validate incoming XML. It wouldn't matter whether or not you could specify minOccurs - it would not be used to validate the input.