[fpc-pascal] Can property setters be procedures only?

[Frank Church]

On 6 February 2013 09:07, Michael Van Canneyt <michael at freepascal.org> wrote:
>
>
> On Wed, 6 Feb 2013, Frank Church wrote:
>
>> When I try to set a property using a function I get the error:
>>
>> form001.pas(28,64) Error: Illegal symbol for property access
>> form001.pas(34,1) Fatal: There were 1 errors compiling module, stopping
>>
>> Is there something about properties that prevent them from being set
>> by a function?
>
>
> Yes, the absence of a result.
> Results sometimes require special handling (strings etc).
>
>
>> I can call a function to set that property, but I wonder why a setter
>> can't be a function?
>
>
> Because there is no result.
>
> Where is the result in
>  MyControl.Top:=3;
> ?
>

What I'm thinking of is when there is an error and the sender has to
be notified?
I am thinking of a case where it would be undesirable to raise an
exception that would stop the flow of the program
Would it be better to have some kind of exception handler or calling
some kind of function that would return an error code would be better?

>
> Michael.
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-- 
Frank Church

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