Solved

About Locate method - Very Easy. Part II

Posted on 2003-11-04
6
189 Views
Last Modified: 2010-04-05
I am using the following command but the Dbgrid doesn't focus on the cells.

Form2.DataSource1.DataSet.Locate('Number',Form5.Edit2.Text,
[loPartialKey]);

The locate command works fine with string fields. So does locate method works for numbers ?

If not, how can i get the same result ?
0
Comment
Question by:CodedK
[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
  • 3
  • 3
6 Comments
 
LVL 16

Author Comment

by:CodedK
ID: 9683744
I guess this happens because i haven't sort the table by the numbers.
Is that the case ?
0
 
LVL 5

Expert Comment

by:DeerBear
ID: 9686042
Hi,

Try converting your text into a real number and use Locate on that.

HTH,

Andrew
0
 
LVL 16

Author Comment

by:CodedK
ID: 9687433
I tried that. But the result is the same nothing is happening. I also sorted the dbgrid by the numbers but nopthing happened.

This is how i convert the string.

Form2.DataSource1.DataSet.Locate('NUMBER',StrToFloat(Form5.Edit2.Text),
[loPartialKey]);

Result is still the same.

Any ideas ?
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!

 
LVL 5

Accepted Solution

by:
DeerBear earned 40 total points
ID: 9687449
Hi,

Try with:

var Num : Extended;

begin
  Num := StrToFloat(Form5.Edit2.Text);
  Form2.DataSource1.DataSet.Locate('NUMBER',[Num],[loPartialKey]);
end;

HTH,

Andrew

0
 
LVL 16

Author Comment

by:CodedK
ID: 9688183
Ok the code code you gave me works. :)
I will accept your answer but answer this pls.

The result with : Form2.DataSource1.DataSet.Locate('NUMBER',[Num],[loPartialKey]);

is exactly the same with : Form2.Table1.FindKey([Form5.Edit2.Text]);

The problem here is that i want Partial Key to work. It doesnt work. I have to write the whole number to go to the right cell.

Do you know why this happens? Thank you for your previous answer DeerBear. I will get back and accept your answer but pls add a comment to that if you can.
Thanks.
0
 
LVL 5

Expert Comment

by:DeerBear
ID: 9692513
Hi,

My guess is that loPartialKey works only with variable data like strings.
I don't think you can apply it to numbers.

The help about Locate doesn't specify if it's only for strings, but that's what I
have always assumed.

HTH,

Andrew
0

Featured Post

Technology Partners: 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

Suggested Solutions

Title # Comments Views Activity
find a node in VST 2 93
Firemonkey android show image from resource ? 1 73
how to resize animated Gif image in delphi ? 1 63
Posting a string with PostMessage 23 50
In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
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…

710 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