Using Textboxes and buttons with Barcode Scanners

I have a ASP.net application that uses VB.net for the code behind.

The purpose of this application is to take input from a barcode scanner and input it into a database.

There are 4 textboxes and then a button that write the data to the database.

The problem that I am having is that the barcode scanners are used for another application and that application requires that the barcode scanners record a line feed carriage return each time a value is scanned.

The line feed, carriage return causes the button to execute because it has the focus.

Here is what I need to happen:

1) Barcode is scanned into textbox1 - the application should record the data in textbox #1 and then change the focus to textbox #2.
2) Barcode is scanned into textbox2 - the application should record the data in textbox #2 and then change the focus to textbox #3
3) Barcode is scanned into textbox3 - the application should record the data in textbox #3 and then change the focus to textbox #4
4) Data will be hand keyed into textbox4 - the application will then execute the click button event to write the data.

How can I do #1 thru #4 above taking into account the barcode scanner will have a carriage return line feed each time a value is scanned?
yonbretAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Éric MoreauSenior .Net ConsultantCommented:
from what I remember (my last barcode scanner project was about 10 years ago), even if a code is scanned, you are still receiving the KeyPress/KeyDown/KeyUp events right? If that is still the case, you can handle the CR code to focus on another control
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
ste5anSenior DeveloperCommented:
When the other application does not use a start marker for the barcode transmission, then it is pretty hard.

I have to guess as it is a web application. The basic approach: hook into all keypress events. Then when a barcode start marker is sent, copy each character into a buffer and discard the bubbling to the control until you have received the barcode end marker. Then send the barcode from the buffer to the correct control.
0
tncodeCommented:
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
.NET Programming

From novice to tech pro — start learning today.

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.