?
Solved

Need example of dual list box, with database code

Posted on 2007-11-18
1
Medium Priority
?
465 Views
Last Modified: 2008-02-01
Hello - Thanks, MacEx for your code snip for dual list boxes. Could you please elaborate on that, for use against a couple of database tables?

I'm trying to work up a page that allows a primary system user to specify the allowable divisions a regular staff-level user can access in a corporate financial system.

Given a lookup table like:

DivID / DivDesc
1  Accounting
2  Advertising
3  Engineering
4  HR
5  IT
etc...

...and a user control table like:
UserID / DivID
User01  1
User01  2
User02  2
User03  1
User03  4
User03  5
etc...

...I'd like to display the DivID's (that the user isn't already set up for) on the left-hand list box, and the DivID's they ARE set up for on the right-hand list box

I know what the queries (or views, or SP's) that pull the rowsource for the two list boxes needs to look like (I've done this before in MS Access/VBA). I just don't know how to code the list box events in VB.NET to pull the recordset's, and update them after an update.

And is that even the best way? Database updates after every listbox update, or pull the 2 rst's into arrays, do all the back & forth locally, until they click "Save", and then update the user control table? (this will be an intranet application)

Thanks; I hope this isn't over-reaching

Mark
0
Comment
Question by:mlagrange
[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
1 Comment
 
LVL 96

Accepted Solution

by:
Bob Learned earned 2000 total points
ID: 20312353
With the ListBox control in ASP.NET there aren't a lot of events.  The basic one that you need is the SelectedIndexChanged.  In order for that to work properly, the page needs to post back.  This is usually accomplished by setting AutoPostBack = True for the ListBox.

Are the ListBox controls bound to a datasource, or populated with code?

Bob
0

Featured Post

Enroll in August's Course of the Month

August's CompTIA IT Fundamentals course includes 19 hours of basic computer principle modules and prepares you for the certification exam. It's free for Premium Members, Team Accounts, and Qualified Experts!

Question has a verified solution.

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

Just a quick little trick I learned recently.  Now that I'm using jQuery with abandon in my asp.net applications, I have grown tired of the following syntax:      (CODE) I suppose it just offends my sense of decency to put inline VBScript on a…
Today is the age of broadband.  More and more people are going this route determined to experience the web and it’s multitude of services as quickly and painlessly as possible. Coupled with the move to broadband, people are experiencing the web via …
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…
Suggested Courses
Course of the Month12 days, 3 hours left to enroll

752 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