Solved

datetime

Posted on 2002-05-23
7
342 Views
Last Modified: 2010-04-04
how can i make sure the entered datetime is a valid datetime through a grid
0
Comment
Question by:palabros
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 12

Expert Comment

by:Lee_Nover
ID: 7029715
try it :)


function ValidateDT(const DateTime: string; var DT: TDateTime): Boolean;
begin
  try
    DT:=StrToDateTime(DateTime);
    Result:=true;
  except
    DT:=0.0;
    Result:=false;
  end;
end;
0
 
LVL 9

Expert Comment

by:ITugay
ID: 7031394
Hi palabros,


use OnSetEditText event to check typed by user data.

-----
Igor.
0
 
LVL 4

Expert Comment

by:nestorua
ID: 7033216
HI,
You can use TDateTimePicker to give the user to choose the date instead of entering it.
Sincerely,
Nestorua.
0
Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:palabros
ID: 7033999
hi nestorua
Can i use a datetimepicker in a grid .again as my datetime is keyfield i am having some trouble with findkey.
can anybody tell me how can we pass datetime field to findkey so as to check for duplication.
i am facing a problem such that 04/10/92 and 10/04/92 are
seems to be fetching the same results.
in which way am i supposed to proceed.

hi lee nover
thanks for the code but this code i have to use i before post events and i am having hell of trouble with handling
events as i really find it difficult to study the sequence of its occurence.
thanks
jon
0
 
LVL 4

Accepted Solution

by:
nestorua earned 50 total points
ID: 7034181
HI,
TDateTimePicker will be appear ONLY when you try to edit that
Field of type TDateTime.
So it will not effect (impact) on your searching.
As for 04/10/92 and 10/04/92: if those values are in the Field of type TDateTime then they are different (April and October).
So, to my mind you should not consider them as the same.
Sincerely,
Nestorua.
0
 

Author Comment

by:palabros
ID: 7038982
hi nestorua ,i have finally reached on to a solution of editmask. and now things r working fine
thanks for u r comments
0
 
LVL 4

Expert Comment

by:nestorua
ID: 7039040
HI,
You are welcome, glad my help was useful.
Sincerely,
Nestorua.
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
Have you ever had your Delphi form/application just hanging while waiting for data to load? This is the article to read if you want to learn some things about adding threads for data loading in the background. First, I'll setup a general applica…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question