BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  datetime          BorlandTalk.com Forum Index -> C++ Builder (Students) View previous topic :: View next topic   Author Message bar Guest Posted: Tue Mar 20, 2007 10:15 pm    Post subject: datetime hello all I have 3 fields in my database. StartingDateTime EndingDateTime WorkingTime. Can anybody suggest, the best way to accept the date and time from the user on the form(interface) and give the workingtime. Thanks SA Back to top Vladimir Stefanovic Guest Posted: Wed Mar 21, 2007 1:06 am    Post subject: Re: datetime Hi, There are few problems with Date and Time. There isn't any special component named TDBDateTime or TDBDateTimePicker. You'll have to improvise (unless you are not going to make a new cmponent or use some 3rd party one). Use a TDBEdit for viewing and editing date and time. Previously make some preparations: 1. double click on Table object containing that DateTime field 2. right click / ad all fields 3. select that DateTime field 4. Set the DateTime format -> DisplayFormat (not sure but EditMask is not needed if I remember well) Also I suggest some other technique. After TDBEdit object place some simple TButton which invokes classic TMonthCalendar and/or TDateTimePicker for changing date and passing the result to TDBEdit. -- Best Regards, Vladimir Stefanovic Back to top Remy Lebeau (TeamB) Guest Posted: Wed Mar 21, 2007 1:57 am    Post subject: Re: datetime "bar" <shaikakbar250281 (AT) yahoo (DOT) co.in> wrote in message news:460016a3 (AT) newsgroups (DOT) borland.com... Quote: Can anybody suggest, the best way to accept the date and time from the user on the form(interface) Look at the TDateTimePicker component. Gambit Back to top bar Guest Posted: Thu Mar 22, 2007 8:11 am    Post subject: Re: datetime Hello all i have a string "01-Mar-2007" i want to assign this value to the datetime picker control dtp->Date = StrToDate("01-Mar-2007"); but i am getting not a valid date Back to top Remy Lebeau (TeamB) Guest Posted: Thu Mar 22, 2007 3:13 pm    Post subject: Re: datetime "bar" <shaikakbar250281 (AT) yahoo (DOT) co.in> wrote in message news:46022f94$1 (AT) newsgroups (DOT) borland.com... Quote: i have a string "01-Mar-2007" i want to assign this value to the datetime picker control dtp->Date = StrToDate("01-Mar-2007"); but i am getting not a valid date That is because your string is not in the correct locale format for your machine. That has nothing to do with the TDateTimePicker. Look at the global ShortDateFormat variable for the proper formatting. You may end up having to manually parse out the individual portions of the value and then construct a TDateTime using EncodeDate(). Gambit Back to top bar Guest Posted: Thu Mar 22, 2007 3:26 pm    Post subject: Re: datetime Thanks I got it. Is there any alternative. My task is to take 2 date time values D1 = 1-Mar-2007 23:00 D2 = 2-Mar-2007 02:00 The differece in hours is 3 hours 0 minutes Later i want to add some of these difference hours Very greatful for the simple and good technique Back to top Remy Lebeau (TeamB) Guest Posted: Thu Mar 22, 2007 10:51 pm    Post subject: Re: datetime "bar" <shaikakbar250281 (AT) yahoo (DOT) co.in> wrote in message news:460259e7 (AT) newsgroups (DOT) borland.com... Quote: My task is to take 2 date time values snip The differece in hours is 3 hours 0 minutes This has been asked and answered many times before. Please go to http://www.deja.com and search through the newsgroup archives. Gambit Back to top bar Guest Posted: Sat Mar 24, 2007 2:56 pm    Post subject: Re: datetime No luck. i find only calculating time difference. But i want to consider the date as well. Many Thanks for the suggestion Thanks SA "bar" <shaikakbar250281 (AT) yahoo (DOT) co.in> wrote in message news:460259e7 (AT) newsgroups (DOT) borland.com... Quote: Thanks I got it. Is there any alternative. My task is to take 2 date time values D1 = 1-Mar-2007 23:00 D2 = 2-Mar-2007 02:00 The differece in hours is 3 hours 0 minutes Later i want to add some of these difference hours Very greatful for the simple and good technique Back to top Thorsten Kettner Guest Posted: Mon Mar 26, 2007 7:59 pm    Post subject: Re: datetime "bar" <shaikakbar250281 (AT) yahoo (DOT) co.in> wrote: Quote: No luck. i find only calculating time difference. But i want to consider the date as well. Many Thanks for the suggestion No find? Subtracting one TDateTime from another gives you the difference in days, e.g. 1.5 for one and a half days. 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