Improve company productivity with a Business Account.Sign Up

x
?
Solved

Database

Posted on 1998-09-08
2
Medium Priority
?
152 Views
Last Modified: 2010-04-06
How to access the records of a Table manually? For example, i want to put a string recorded in a field called 'Desc', in a Edit.
0
Comment
Question by:lifeson
2 Comments
 
LVL 3

Expert Comment

by:vladika
ID: 1339093
Edit.Text := MyField.AsString
or
Edit.Text := MyTable.FieldByName('MyField').AsString
or
use DBEdit


0
 
LVL 1

Accepted Solution

by:
Marcius earned 100 total points
ID: 1339094
Lifeson,

Vladika has really answered this question, but I will provide some more information.

You need to select the correct record in your database table first. To do this, you can use TDataset.Locate or TTable.FindKey. Assuming a table with an integer MyKey as primary key, the syntax would be:

procedure TForm1.SelectMyRecord(MyKey: Integer);
begin
  if MyTable.FindKey([MyKey]) then
     MyEdit.Text := MyTable.FieldByName('MyField').AsString;
end;

The locate is more complicated, but can be used to find a record without using key values.

procedure TForm1.SelectMyRecord(FirstVal, SecondVal: Integer);
begin
  if MyTable.Locate('FirstSearchField;SecondSearchField',
                    VarArrayOf([FirstVal,SecondVal]),[]) then
     MyEdit.Text := MyTable.FieldByName('MyField').AsString;
end;

I hope this helps,

Marcius.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
This is an update to some code that someone else posted on Experts Exchange. It is an alternate approach, I think a little easier to use, & makes sure that things like the Task Bar will update.
In this video I will demonstrate how to set up Nine, which I now consider the best alternative email app to Touchdown.
Free Data Recovery software is an advanced solution from Kernel Tools to recover data and files such as documents, emails, database, media and pictures, etc. It supports recovery from physical & logical drive after a hard disk crash, accidental/inte…

595 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