how to remove duplicates from bounded dropdownlist with AppendDataBoundItems="true"

Question

0.00/5 (No votes)

See more:

VB

ASP.NET

how to remove duplicates from bounded dropdownlist with AppendDataBoundItems="true"?

thanks,

Posted 5-Sep-13 6:22am

Hidhoud1991

Add a Solution

Comments

Richard C Bishop 5-Sep-13 12:24pm

What is your data source look like?

[no name] 5-Sep-13 12:30pm

access data source i used appenddatabounditem to add default item "Select One" where it can trigger the DropDownList1_SelectedIndexChanged()

Richard C Bishop 5-Sep-13 12:32pm

You will need to filter the data in your data source before you populate the dropdownlist.

[no name] 5-Sep-13 12:50pm

it duplicate the items in dropdownlist on databind

Richard C Bishop 5-Sep-13 12:50pm

Show the code then, it does not do it by itself.

[no name] 5-Sep-13 12:55pm

on post back it databind again so it add the items another time

Richard C Bishop 5-Sep-13 14:11pm

Use the "Improve question" widget to add the code you are using to the thread. Then I can help you further.

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

woopsydoozy · Answer 1 · 2013-09-05T08:16:00

Solution 1

"on post back it databind again so it add the items another time"

Sounds like you just need a check in your Page_Load for IsPostback.

VB

 If IsPostBack Then
  'load your dropdown
End If

Posted 5-Sep-13 8:16am

woopsydoozy

TryAndSucceed · Answer 2 · 2013-09-05T11:25:00

Solution 2

Create a dropdown method. If its not postback i.e. First Time Entry, then call the method.

Posted 5-Sep-13 11:25am

TryAndSucceed

Comments

[no name] 6-Sep-13 2:27am

what do i write in that method