BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Sorry I ask this question          BorlandTalk.com Forum Index -> comp.lang.pascal.delphi.misc View previous topic :: View next topic   Author Message Franco Jommi Guest Posted: Sat Feb 28, 2004 10:54 am    Post subject: Sorry I ask this question It's incredible, but I can't figure out how to set a stuoìpid filter on a date, and I have to ask somebody! I need, first to filter out all of the records with a null expiry date, and then those with an expiry date less then the current date. I just need to set the Filter property of my TTable, and I didn't find the correct way, since in the filter it looks I can't use expressions. Can you help ? I am stuck! Back to top Franco Jommi Guest Posted: Sun Feb 29, 2004 10:56 am    Post subject: Re: Sorry I ask this question Noone answered ! No ideas ? "Franco Jommi" <franco.jommmi (AT) tin (DOT) it> ha scritto nel messaggio news:Ar_%b.33686$gk.1401734 (AT) news3 (DOT) tin.it... Quote: It's incredible, but I can't figure out how to set a stuoìpid filter on a date, and I have to ask somebody! I need, first to filter out all of the records with a null expiry date, and then those with an expiry date less then the current date. I just need to set the Filter property of my TTable, and I didn't find the correct way, since in the filter it looks I can't use expressions. Can you help ? I am stuck! Back to top David Reeve Guest Posted: Sun Feb 29, 2004 12:09 pm    Post subject: Re: Sorry I ask this question "Franco Jommi" <franco.jommmi (AT) tin (DOT) it> wrote Quote: Noone answered ! No ideas ? "Franco Jommi" <franco.jommmi (AT) tin (DOT) it> ha scritto nel messaggio news:Ar_%b.33686$gk.1401734 (AT) news3 (DOT) tin.it... It's incredible, but I can't figure out how to set a stuoìpid filter on a date, and I have to ask somebody! I need, first to filter out all of the records with a null expiry date, and then those with an expiry date less then the current date. I just need to set the Filter property of my TTable, and I didn't find the correct way, since in the filter it looks I can't use expressions. Can you help ? I am stuck! It's not something I do a lot of, but I seem to remember that the TDataSet.OnFilterRecord event is the way to have flexibility when filtering. Check the help on this event. There is an example of filtering on a date field. Dave Back to top pr Guest Posted: Sun Feb 29, 2004 3:57 pm    Post subject: Re: Sorry I ask this question "Franco Jommi" <franco.jommmi (AT) tin (DOT) it> wrote Quote: Noone answered ! No ideas ? "Franco Jommi" <franco.jommmi (AT) tin (DOT) it> ha scritto nel messaggio news:Ar_%b.33686$gk.1401734 (AT) news3 (DOT) tin.it... It's incredible, but I can't figure out how to set a stuoìpid filter on a date, and I have to ask somebody! I need, first to filter out all of the records with a null expiry date, and then those with an expiry date less then the current date. I just need to set the Filter property of my TTable, and I didn't find the correct way, since in the filter it looks I can't use expressions. Can you help ? I am stuck! filter := 'TheDate IS NOT NULL and TheDate<' + '''' + '01/12/2003' + ''''; You may need double quotes instead of single ones around the date, date separators according to your windows settings and possibly the date in US format. But do yourself a favour, use a Query for stuff like that. PR Back to top Franco Jommi Guest Posted: Mon Mar 01, 2004 1:23 pm    Post subject: Re: Sorry I ask this question The problem I have with the Query is that the resulting dataset is not easily updatable as it is a TTable, at least in my dBase environment... What I want to achieve is to keep on my Table all of the records, including those with an expired date, but I only want to work with the part of the Table "not expired". Under certain circumstances, I may have to use additional filters, but the "expiry date" filter should always work. I don't like too much this solution, but I didn't find another one. For instance, I didn't want to use an OnFilter event, since this may intefere with the use of additional filters, as I said above, nor did I find a way to pass to the OnFilter event a filter string created outside of the event routine. But, probably I don't know enough... "pr" <shin (AT) netactive (DOT) co.za> ha scritto nel messaggio news:40424068.0 (AT) news1 (DOT) mweb.co.za... Quote: "Franco Jommi" <franco.jommmi (AT) tin (DOT) it> wrote in message news:Wzj0c.38068$gk.1602912 (AT) news3 (DOT) tin.it... Noone answered ! No ideas ? "Franco Jommi" <franco.jommmi (AT) tin (DOT) it> ha scritto nel messaggio news:Ar_%b.33686$gk.1401734 (AT) news3 (DOT) tin.it... It's incredible, but I can't figure out how to set a stuoìpid filter on a date, and I have to ask somebody! I need, first to filter out all of the records with a null expiry date, and then those with an expiry date less then the current date. I just need to set the Filter property of my TTable, and I didn't find the correct way, since in the filter it looks I can't use expressions. Can you help ? I am stuck! filter := 'TheDate IS NOT NULL and TheDate<' + '''' + '01/12/2003' + ''''; You may need double quotes instead of single ones around the date, date separators according to your windows settings and possibly the date in US format. But do yourself a favour, use a Query for stuff like that. 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