Board index » delphi » how to let user specify filters?

how to let user specify filters?

hello,

i was wondering if there is a way i can have the user define his own
filtering.  please specify what you feel is the best way to implement
this.  for example, if the user wanted physicians in the 22304 zip code
or physicians specializing in Gynocology (incidently, i am designing a
physician finder :-).  any help would be greatly appreciated.

please reply via email.

thanks,
yash

--
.............................................................................
:                         : Yash L. Khemani                                 :
:                         : Rutgers College, New Brunswick, NJ              :
:          _\|/_          : Internet: ykhem...@osf1.gmu.edu                 :
:          (O O)          :           khem...@eden.rutgers.edu              :
:-------oOO-(_)-OOo-------: WWW:      http://osf1.gmu.edu/~ykhemani/        :
:.........................:.................................................:

 

Re:how to let user specify filters?


In article <41gdaa$...@portal.gmu.edu> ykhem...@osf1.gmu.edu (Yash L Khemani) writes:

Quote
>From: ykhem...@osf1.gmu.edu (Yash L Khemani)
>Subject: how to let user specify filters?
>Date: 23 Aug 1995 23:23:54 GMT
>hello,
>i was wondering if there is a way i can have the user define his own
>filtering.  please specify what you feel is the best way to implement
>this.  for example, if the user wanted physicians in the 22304 zip code
>or physicians specializing in Gynocology (incidently, i am designing a
>physician finder :-).  any help would be greatly appreciated.

I'm running InfoPower 1.1 (Woll2Woll SW) and it has filtering.  As you will
see if you get into it, filters are very powerful and very useful -- but a <!>
of a <!> to specify because you have to construct a parse-tree in memory!  
There are also several shareware components that do filtering but none that
I've found to include source.  I suppose that once the authors got it working
they were unwilling to share the goodies on how they did it.  :-)

Anyhow, I'm constantly combing the net for components and buying all the
commercial ones that look good.  There are some real deficiencies in Delphi
1.0 but those holes are very rapidly being filled by third-party vendors.  
Which is good, because component-writing is something that people like me
rarely have *time* for.  :-/

/mr/

Other Threads