Auto-Implemented Properties and Nullable Types

[Stefan Hoffmann]

hi @all,

has anybody an explanation, why string? is not allowed for an
auto-implemented property?

namespace Test
{
class Class1
{
int? NullableInt { get; set; }
string? NullableString { get; set; }
}
}
mfG
--stefan <--

[Marc Gravell]

Because string is a reference-type (class), not a value-type (struct).

Strings can already be null - just use:

string Foo {get;set;}

Marc

[Stefan Hoffmann]

hi Stefan,

Stefan Hoffmann wrote:

has anybody an explanation, why string? is not allowed for an
auto-implemented property?

Found it:

public struct Nullable<Twhere T : struct
arghh
--stefan <--