Solved

ASP.net VB load unique items to dropdown list

Posted on 2011-02-20
3
705 Views
Last Modified: 2012-05-11
Hi
In ASP.net 4 I have a dropdownlist control that I want to populate with the unique items of one of the columns in a sQL table that is in my project. What VB code would I use to do this?
0
Comment
Question by:murbro
  • 2
3 Comments
 
LVL 39

Expert Comment

by:Pratima Pharande
ID: 34940744
Get the data from database , and in query itself get the unique data
see the code below . repleace your query with Sql query

Dim strConnectionString As String = "connetion string here"
    Dim cnn As New SqlConnection(strConnectionString)
    Dim cmd As SqlClient.SqlCommand = New SqlClient.SqlCommand("SELECT distinct col1 FROM tableName ", cnn)
    cmd.CommandType = CommandType.Text
    Dim dacmd As New SqlClient.SqlDataAdapter(cmd)
    Dim dscmd As New DataSet
    dacmd.Fill(dscmd)
    DropDownList11.DataSource = dscmd.Tables(0)
    DropDownList11.DataBind()
0
 
LVL 39

Accepted Solution

by:
Pratima Pharande earned 500 total points
ID: 34940746
Get the data from database , and in query itself get the unique data
see the code below . repleace your query with Sql query

Dim strConnectionString As String = "connetion string here"
    Dim cnn As New SqlConnection(strConnectionString)
    Dim cmd As SqlClient.SqlCommand = New SqlClient.SqlCommand("SELECT distinct col1 FROM tableName ", cnn)
    cmd.CommandType = CommandType.Text
    Dim dacmd As New SqlClient.SqlDataAdapter(cmd)
    Dim dscmd As New DataSet
    dacmd.Fill(dscmd)
    DropDownList11.DataSource = dscmd.Tables(0)
DropDownList11.DataTextField = "col1"
DropDownList11.DataValueField = "col1"
    DropDownList11.DataBind()
0
 

Author Closing Comment

by:murbro
ID: 34949172
thanks very much
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

This article discusses the ASP.NET AJAX ModalPopupExtender control. In this article we will show how to use the ModalPopupExtender control, how to display/show/call the ASP.NET AJAX ModalPopupExtender control from javascript, how to show/display/cal…
Problem Hi all,    While many today have fast Internet connection, there are many still who do not, or are connecting through devices with a slower connect, so light web pages and fast load times are still popular.    If your ASP.NET page …
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
In this video I am going to show you how to back up and restore Office 365 mailboxes using CodeTwo Backup for Office 365. Learn more about the tool used in this video here: http://www.codetwo.com/backup-for-office-365/ (http://www.codetwo.com/ba…

813 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

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now