Databinding and default values
===

What I have is a DataGrid (in **WPF**), and I have bound it to a list of a custom class I have made.

Lets say for simplicity sake, the class is follows:

    public class MyClass{
    
       int val;
       string str;
       static const int alwaysSetValue = 10;
    
    }

Is there a way to (in the databinding or the class itself) say that "if val = -1, in the datagrid instead of displaying -1, just display a blank, or ' '? 

I was looking at the Binding's IsTargetNull value, and that would be good if int was a nullable type, but I would prefer to not use int? if possible.

Is there any way to do this? Some sort of override ToString() or something?
