Solved

Delphi query Error

Posted on 2013-01-05
3
575 Views
Last Modified: 2013-01-05
Hi all:
I've an strange error message in a payroll system. when i call some procedure or function to return specific value. there is a message "Query1 EmpName Not Found",
i am clear all fields before this function, i am using the same query to other functions and procedure but also clear  it before start.


query error msg
piece of code
0
Comment
Question by:khaled salem
3 Comments
 
LVL 26

Accepted Solution

by:
Sinisa Vuk earned 500 total points
ID: 38746809
When exception pop up? On Open query? If you use this query for other purpose, maybe you link it with some db component like dbedit or dbcombobox on form where you use EmpName field. For just getting data  from db use separate query and for visual db components use another.

Second: I've noticed that you use for loop. Better approach is to use while loop like:
dm.query1.First;
while not dm.query1.eof do
begin
  combo1.Items.Add(....);
   ...
  dm.query1.Next;
end;

Open in new window

0
 
LVL 7

Expert Comment

by:armchang
ID: 38746815
The code you've checked is only one part. The other part is you need to update the persistent fields or the initial query inside the DM.Query1. You can do this by going the to the DM form window, select the Query1 component then go to properties window and open the SQL property to update and remove the field in the SQL string.
0
 

Author Closing Comment

by:khaled salem
ID: 38746851
Thank you very much for the second point
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
Hello everybody This Article will show you how to validate number with TEdit control, What's the TEdit control? TEdit is a standard Windows edit control on a form, it allows to user to write, read and copy/paste single line of text. Usua…
In this video I am going to show you how to back up and restore Office 365 mailboxes using CodeTwo Backup for Office 365. Learn more about the tool used in this video here: http://www.codetwo.com/backup-for-office-365/ (http://www.codetwo.com/ba…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…

920 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

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now