Re: Arghhh...strict, but not strict enough

Not quite Armin, You don't get a conversion with CType. You may get a
duplication of data boxed or unboxed into a new type if your input and
output parametes are reference and value types or vice versa. When both of
the inputs are of the same fundamental type, you just get a cast of the
reference.

A conversion implies that the original data is transformed into something
else and CType doesn't do that. It *can* copy data and put that into a new
type, but it can't convert the data into a new type.

-Scott


"Armin Zingler" <az.nospam@xxxxxxxxxx> wrote in message
news:el6hWBduJHA.5764@xxxxxxxxxxxxxxxxxxxxxxx
John Whitworth wrote:
Thanks Armin - I got there from Patrice's message. But is there a
difference between CType and directcast?

DirectCast only casts. CType (also) converts if necessary. Even if both
lead
to the same (IL) code in this case, I prefer Directcast - personal taste
only - if I want to cast. With CType, the VB compiler generates the code
required to do the conversion in other cases.

The difference between casting and converting is that a conversion creates
a new object while casting just changes the type of the reference.


Armin



.

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