Difference between int i=1; vs int? i = 1;

[Guest]

In C#, what is the difference between declaring an int like this:

int i = 1;

versus

int? i = 1;

both seem to work the same way in VS.NET 2005.

 

[Nicholas Paldino [.NET/C# MVP]]

Eeraj,

When you say int? it is really an alias in C# for Nullable<int> so:

int? i = 1;

Is the same as:

Nullable<int> i = 1;

Which should explain the difference.

Hope this helps.