Solved

Void firing before changes

Posted on 2011-09-06
1
209 Views
Last Modified: 2012-05-12
I've got an asp.net page with a void that I run whenever one of two dropdowns chages. It does some counting and sets the datasource of a gridview for me. It's doing what I want...almost.

The problem is I've got some parameters which I attempt to set before I call it (UserName, Start and End Date). But, they don't actually change until after it runs. That happens on page_load and in any postbacks.   "On paper" my parameters are changed first. Bottom line, my counts and gridview appear to be one step behind.

I can get something almost right setting the void to run on an selected value changes in the two dropdowns, but my load event doesn't work that way.
0
Comment
Question by:jdcollins21
[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 29

Accepted Solution

by:
David H.H.Lee earned 500 total points
ID: 36494155
Hi jdcollins21,
How you invoke the Postback code in page_load event, through client script or server script?
You can put the existing controls inside <asp:updatepanel>, call from Page_Load event(code behind).
eg:
Private Page_Load(){
  if(!IsPostBack){
    CallDropDownSelectedIndexChanged_Event(null,null);//call your selectedindexchanged event
  }
}

Or, you can call the client script manually.
<script language='Javascript'>
__doPostBack('__DrpDownListID', 'YourCustomArgument');
</script>
Sample:
http://www.dotnetspider.com/resources/1521-How-call-Postback-from-Javascript.aspx

But, this is depending how your control your flow and the way you invoke the script based on your real situation.
Please provide more details if you seek any further assistance.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

A quick way to get a menu to work on our website, is using the Menu control and assign it to a web.sitemap using SiteMapDataSource. Example of web.sitemap file: (CODE) Sample code to add to the page menu: (CODE) Running the application, we wi…
Performance in games development is paramount: every microsecond counts to be able to do everything in less than 33ms (aiming at 16ms). C# foreach statement is one of the worst performance killers, and here I explain why.
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…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …
Suggested Courses

636 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