Question

I mean, I want to convert this:

string a = 24;
Convert.ChangeType(a, typeof(decimal?))

But it throws me an error.

UPDATE 1:

I’ve got a Type object where can be decimal?, int?, .. many nullable types. Then with the Type object, I need to convert the string value in type object.

Answer 1

You can’t do this since Nullable<T> don’t implement IConvertable.

You can do this although.

string a = 24;
decimal? aAsDecimal = (decimal)Convert.ChangeType(a, typeof(decimal));

Might I also interest you in TryParse?