?
Solved

trying to do a simple division

Posted on 2002-03-07
12
Medium Priority
?
200 Views
Last Modified: 2010-04-05
hi folks,
im trying the follow:
edit3.text := inttostr(strtoint(edit1.text) / strtoint(edit2.text));

where the value in edit2 is 20. when i compile this i get an error saying something like: theres no version for overloading 'inttostr' which can be done with the given arguments, any hints
0
Comment
Question by:ugross
[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
  • 6
  • 3
  • 3
12 Comments
 
LVL 27

Expert Comment

by:kretzschmar
ID: 6847338
try this

edit3.text := floattostr(strtoint(edit1.text) / strtoint(edit2.text));

0
 

Author Comment

by:ugross
ID: 6847376
when trying this i get a bde exception of the class edbengineerror, error during initialization (error#2501)
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 6847399
this may different things,

the bde error 2501 is definitiv not caused by the division,
except you modify with the result the bde alias

as stated in the other q, you can calculations do
with a calculated field in the oncalcevent of the underlying dataset.

but i guess you've first to solve your bde error,
maybe a wrong databasedriver in the alias

meikl ;-)
0
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!

 
LVL 3

Accepted Solution

by:
Ronald Buster earned 400 total points
ID: 6847576
hi

try this

edit3.text := inttostr(strtoint(edit1.text) div strtoint(edit2.text));

Integers can works a bit different when dividing you have to use the keyword "div" instead of "/".

regards,

Cono
0
 

Author Comment

by:ugross
ID: 6847603
you made it, works now, thx
0
 

Author Comment

by:ugross
ID: 6847663
hi cono, short additional q
as already said your solution works but im only getting
full numbers eg. 4 where when i manually calculate this the exact result is 4.75, what do i have to change to get the exact result, thx
0
 
LVL 3

Expert Comment

by:Ronald Buster
ID: 6847716
try

this

edit3.text := floattostr(strtofloat(edit1.text) / strtofloat(edit2.text));

you have to make sure there are valid digits in the edit1 and edit2 control. And when using decimalseparator please
be sure to use a "." or "," depending on your decimalseparator variable.

Setting

decimalseparator := '.';

regards

Cono
0
 

Author Comment

by:ugross
ID: 6847735
hi i used this but got an error that string an dinteger r incompat.:
edit1.text := strtofloat(strtoint(edit1.text) div strtoint(edit2.text));
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 6847910
ts ts ts

edit3.text := floattostr(strtoint(edit1.text) / strtoint(edit2.text));

hu a dejavu
0
 
LVL 3

Expert Comment

by:Ronald Buster
ID: 6847969
You must do this otherwise strtoint doesn't make it a float
you've got an error

do this

edit3.text := floattostr(strtofloat(edit1.text) / strtofloat(edit2.text));


edit1.text := '10'
edit2.text := '3'
edit3.text will contain the value '3.333333';

0
 

Author Comment

by:ugross
ID: 6849827
hi guys, sorry got the error that thi si not a valid
integer value, thx
0
 

Author Comment

by:ugross
ID: 6849833
sorry your answers were correct my fault, the error came from the next row of code which is:
dbedit1.Text := edit1.text; (for saving the value in the database)
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

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…
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…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…
Suggested Courses

765 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