I'm trying to pass a Nullable type as a parameter to the TryParse()
method (both int and float types) and I'm not having any luck. I've
tried casting as well as passing just the T.Value property; however,
doing this generated a compiler error indicating that it's not possible
to pass a property as an out or ref parameter.
Other than using a temporary (non-nullable) variable, I haven't been
able to come up with a solution.
Example:
int? MyInt;
if (!TryParse("123 ", out MyInt))
[...]
Any ideas?
Thank you in advance,
--
Sean 3 7831
make an overload of your TryParse Method as the following
private bool TryParse(string s, out int? param)
{
param = 1;
return true;
}
private bool TryParse(string s, out int param)
{
param = 1;
return true;
}
and then use it normally
--
Muhammad Mosa
Software Engineer & Solution Developer
MCT/MCSD.NET
MCTS: .Net 2.0 Web Applications
MCTS: .Net 2.0 Windows Applications
"senfo" wrote:
I'm trying to pass a Nullable type as a parameter to the TryParse()
method (both int and float types) and I'm not having any luck. I've
tried casting as well as passing just the T.Value property; however,
doing this generated a compiler error indicating that it's not possible
to pass a property as an out or ref parameter.
Other than using a temporary (non-nullable) variable, I haven't been
able to come up with a solution.
Example:
int? MyInt;
if (!TryParse("123 ", out MyInt))
[...]
Any ideas?
Thank you in advance,
--
Sean
senfo <en**********@y ahoo.comI-WANT-NO-SPAMwrote:
I'm trying to pass a Nullable type as a parameter to the TryParse()
method (both int and float types) and I'm not having any luck. I've
tried casting as well as passing just the T.Value property; however,
doing this generated a compiler error indicating that it's not possible
to pass a property as an out or ref parameter.
Other than using a temporary (non-nullable) variable, I haven't been
able to come up with a solution.
Well, you could write your own utility method which used the temporary
variable approach if you need to do this a lot, but no, you can't do it
directly. The type of an out/ref parameter must be *exactly* the same
type as the one in the declaration.
--
Jon Skeet - <sk***@pobox.co m> http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too
Jon Skeet [C# MVP] wrote:
senfo <en**********@y ahoo.comI-WANT-NO-SPAMwrote:
>I'm trying to pass a Nullable type as a parameter to the TryParse() method (both int and float types) and I'm not having any luck. I've tried casting as well as passing just the T.Value property; however, doing this generated a compiler error indicating that it's not possible to pass a property as an out or ref parameter.
Other than using a temporary (non-nullable) variable, I haven't been able to come up with a solution.
Well, you could write your own utility method which used the temporary
variable approach if you need to do this a lot, but no, you can't do it
directly. The type of an out/ref parameter must be *exactly* the same
type as the one in the declaration.
Interesting. And here I thought I was loosing my mind for not being
able to find a more direct approach.
Thank you very much for your help,
--
Sean This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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