Gridview Databind / Make Column 2 Contain 2 Objects From TheSource?

I'm doing a gridview with an object datasource:

List<MyObject> TheSource = a linq query

At some point, I have

MyGridview.DataSource = TheSource;
MyGridview.Databind();

and an OnRowDataBound event handler that's tied to the databinding.

In that event handler, how do you make column 2 contain 2 objects from TheSource. For instance, in the TheSource, there is a variable for FirstName and another one for LastName. Column 2 needs to contain both the first and last name in the same cell.