Databinding in windows forms on an object graph with possible null properties?
- by Fredrik
If I have an object graph like this:
class Company {
public Address MainAddress {...}
}
class Address {
public string City { ... }
}
Company c = new Company();
c.MainAddress = new Address();
c.MainAddress.City = "Stockholm";
and databind to a control using:
textBox1.DataBinding.Add( "Text", c, "MainAddress.City" );
Everything is fine, but If I bind to:
Company c2 = new Company();
c2 using the same syntax it crashes since the MainAddress property is null. I wonder if there is a custom Binding class that can set up listeners for all the possible paths here and bind to the actual object dynamically when/if I sometime later in the application set the MainAddress property.
