Ross Levis wrote:
I have a question regarding the use of "as" in this statement.
(RadioGroup1.Controls[0] as TRadioButton).SetFocus;
I've always done it like this:
TRadioButton(RadioGroup1.Controls[0]).SetFocus;
Is one more efficient or beneficial than the other?
For a standard TRadioGroup you can be pretty much assured that
everything in the Controls collection is a TRadioButton, so doing
the unchecked typecast is probably safe.
Depending on your needs you might want to go as far as something
like the following:
if RadioGroup1.Controls[0] is TRadioButton then
TRadioButton(RadioGroup1.Controls[0]).SetFocus;
Which provides the most protection; avoiding raising the
exception on the chance that Controls[0] isn't a TRadioButton.
Stephen Posey
[EMAIL PROTECTED]
_______________________________________________
Delphi mailing list -> [email protected]
http://www.elists.org/mailman/listinfo/delphi
