Solved

Programitically setting selected dropdownlist item??

Posted on 2004-10-11
3
152 Views
Last Modified: 2010-08-05

Hello I'm using c#.net. I have a dropdownlist control on the page that I build up the items for programatically like so in the code behind. I'm checking for a variable that's passed through the querystring, and if it equals the value of the collection item I'm looping through when building the list, then I want it to be the selected item. Problem is it selects the item. but always reselects the same item once I try to select another one from the list, and it just always goes back to the same selection as what was set when initially landing to the page. What am I doing wrong please, thanks in advance!!

System.Collections.SortedList sortList = new System.Collections.SortedList();

sortList["1"] = "price lowest to highest";
sortList["2"] = "price highest to lowest";
sortList["5"] = "product name";

foreach(DictionaryEntry item in sortList)
{
System.Web.UI.WebControls.ListItem  listItem = new System.Web.UI.WebControls.ListItem();
listItem.Text = item.Value.ToString();
listItem.Value = item.Key.ToString();      
this._DdSort.Items.Add(listItem);
if(Convert.ToInt32(_sort) == Convert.ToInt32(item.Key))
      this._DdSort.SelectedValue = item.Key.ToString();
}

0
Comment
Question by:animated405
3 Comments
 
LVL 20

Accepted Solution

by:
TheAvenger earned 250 total points
ID: 12275275
Does your page always post back when an index is changed, e.g. is the AutoEventWireup set to true for this control? If yes, you should put the foreach statement in an if clause, something like:

if (!this.IsPostBack)
{
  foreach....
}
0
 

Author Comment

by:animated405
ID: 12524682

Sorry for not responding, the comment was helpful...thanks very much
0

Featured Post

Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

Question has a verified solution.

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

In order to hide the "ugly" records selectors (triangles) in the rowheaders, here are some suggestions. Microsoft doesn't have a direct method/property to do it. You can only hide the rowheader column. First solution, the easy way The first sol…
It was really hard time for me to get the understanding of Delegates in C#. I went through many websites and articles but I found them very clumsy. After going through those sites, I noted down the points in a easy way so here I am sharing that unde…
This video shows how to use Hyena, from SystemTools Software, to bulk import 100 user accounts from an external text file. View in 1080p for best video quality.

825 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