It is not idiomatic c#, but if you really want a with equivalent, you could do this:
Person MyPersonWithALongName = new Person();
MyUtils.With(MyPersonWithALongName, p => {
p.Name = "George";
p.Address = "123 Main St";
...
});
class MyUtils {
public static void With(T x, Action do) {
do(x);
}
}
Update:
It occurred to me that you could trivially make this more concise by turning it into an extension method, perhaps renaming it "Alias" or "As" for reabability:
MyPersonWithALongName.Alias(p => {
p.Name = "George";
p.Address = "123 Main St";
...
});
