Question

ASP.Net AJAX progress

Asked by: Fraser_Admin

Is there a way I can do the following.

In button click I have a process that runs (server side).  It connects to the db to get a list of suppliers.  Once I have the list I do stuff with each one.  It takes about a minute per supplier.

What I would like to have is a progress somehow that is updated when each supplier finishes, threw ajax.  So when supplier A is done it adds completed supplier a to the textbox, when supplir b is done, completed supplier b, etc.

Is there a way this can be accomplished threw ajax?

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Asked On
2009-10-11 at 04:33:36ID24802641
Topics

Asynchronous Javascript and XML (AJAX)

,

.NET Framework 3.x versions

,

WebApplications

Participating Experts
1
Points
500
Comments
7

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Answers

 

by: TheLearnedOnePosted on 2009-10-12 at 05:58:06ID: 25550804

If you haven't discovered the UpdateProgress control from the AJAX control toolkit, please take a look:

UpdateProgress Control Overview
http://msdn.microsoft.com/en-us/library/bb398821.aspx

 

by: Fraser_AdminPosted on 2009-10-12 at 09:05:20ID: 25552388

yea i'm looking at it, but i don't see how it does just what i want.  i guess i will have to play with it a bit.

i'm using the updateprogress control right now to show Updating in Progress.... message.  But what I would like to do is add to that (ie. Supplier A done, Supplier B done, etc.) as each supplier completes.

All my code is executed inside a button click event handler.  My button is inside an updatepanel.  So what I'm wonder is how do you add to this updateprogress during a partial page postback?

 

by: TheLearnedOnePosted on 2009-10-12 at 09:08:25ID: 25552417

How are the updates processed in order?  Is there multiple post backs, or a single post-back?

 

by: Fraser_AdminPosted on 2009-10-12 at 10:04:22ID: 25552887

one single post back.  on a button click i am calling a sqlserver db to get a listing of suppliers.  then for each supplier i call a routine which creates a reporting services report and saves it.  since it takes about 3 or 4 minutes to execute for all suppliers, i just wanted to somehow display when each supplier has completed to let the user know how much longer they have to wait.

 

by: TheLearnedOnePosted on 2009-10-12 at 12:17:08ID: 25554110

I haven't used the UpdateProgress control that way, and I wouldn't know if it is possible.  It sounds like you might want to take a different route, and use some JavaScript with a floating <div> to show progress.

 

by: Fraser_AdminPosted on 2009-10-12 at 12:26:15ID: 25554180

how does that work though.  can i output stuff from server side partial postback using javascript?  do you have an example of this?

 

by: TheLearnedOnePosted on 2009-10-12 at 12:31:32ID: 25554231

1) Unfortunately, I don't have an example, because I haven't had a need.

2) You might also be able to use a call back to process the next step, and update the UI with the current progress:

Implementing Client Callbacks Programmatically Without Postbacks in ASP.NET Web Pages
http://msdn.microsoft.com/en-us/library/ms178208.aspx

20120131-EE-VQP-002

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