473,398 Members | 2,113 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,398 software developers and data experts.

Web Listbox and Selected in C#

I have a problem with the Listbox Web control in C#. It works fine in VB but in C#, the .Selected property always returns false for some reason. I have the Listbox Selectionmode set to Multiple. Can anyone tell me why? This is in Visual Studio.NET 2002

Code

foreach ( ListItem oItem in lstPeriods.Items

if ( oItem.Selected == true ) // This always returns false

Nov 18 '05 #1
2 1485
Well, the short answer is that it shouldn't do this. Now, we just need to
figure out why. When is this code being executed? Do you have the right
number of items? Are you databinding the control again prior to iterating
through it, in which case the framework will see it as fresh with no items
selected?

--
Chris Jackson
Software Engineer
Microsoft MVP - Windows Client
Windows XP Associate Expert
--
More people read the newsgroups than read my email.
Reply to the newsgroup for a faster response.
(Control-G using Outlook Express)
--

"David" <an*******@discussions.microsoft.com> wrote in message
news:5D**********************************@microsof t.com...
I have a problem with the Listbox Web control in C#. It works fine in VB
but in C#, the .Selected property always returns false for some reason. I
have the Listbox Selectionmode set to Multiple. Can anyone tell me why?
This is in Visual Studio.NET 2002.

Code:

foreach ( ListItem oItem in lstPeriods.Items )
{
if ( oItem.Selected == true ) // This always returns false!
{

Nov 18 '05 #2
This code is being executed in the handler for a submit button.
The listbox control is databound to an OracleDataReader. I see the data in the listbox fine, make my seletion(s) and press the submit button.

public class DateRange : System.Web.UI.Pag

protected System.Web.UI.WebControls.Button btnSubmit
protected System.Web.UI.WebControls.ListBox lstPeriods
..

private void btnSubmit_Click(object sender, System.EventArgs e
foreach ( ListItem oItem in lstPeriods.Items

if ( oItem.Selected == true ) // this is always fals

..

Thanks for your help, --David
Nov 18 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
by: Alienz | last post by:
I have a subform where I have a subform with 20 options to select from. When I set the multiselect property to simple and select multiple options, nothing is stored. I have another table with...
2
by: Sally | last post by:
I have a simple multiselect listbox with a rowsorce of MemberID, MemberName, SendLetter. SendLetter is a Yes/No field. What is the code to set SendLetter to Yes when the user selects MemberName? I...
0
by: bill yeager | last post by:
Duray, it helps in regards to knowing how to get the items that were selected in the lisbox, but I'm going in reverse --- after I get the items from the db that were selected, I'd like to be able...
6
by: Chris Leuty | last post by:
I am populating a multiselect Listbox from a dataset, with the content of the listbox filled by one table, and the selections determined from another table. So far, I have been keeping the dataset...
6
by: Janaka | last post by:
Help! I have two ListBox controls on my web form. The first one gets populated on entry with values from the DB. I then use JavaScript to copy options from this ListBox to my second one. (I...
2
by: tangokilo | last post by:
Hello and thanks for your help, I have the following Listbox created in VisualStudio 2003 designer, desiring to select multiple entries from that list: -------------------------------...
2
by: John | last post by:
I have a listbox that is databound when my form loads. A user can then select and option using a drop down box. When the user selects an option the corresponding items in the listbox gets selected....
2
by: php_Boi | last post by:
i have designed an application that is a dynamic submission form. i have text fields and listboxes. now i am able to retain the values of the listboxes when i populate the listbox "manually"(single...
9
by: zdrakec | last post by:
Hello all: Clearly, I'm not getting it! Here is the scenario: On a web page, I have two list boxen and a text box. The first listbox is populated at page load time (if it is not a postback)....
7
by: Lit | last post by:
Hi, How can I capture the vertical scroll bar position for a Listbox. I have a Listbox of 100 items + when I click on it I post back remove the item selected. After returning to the client...
0
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
0
BarryA
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing,...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.