Progress Updates On Long Process With JavaScript?
Mar 7, 2010
I have an asp.net page that calls a dll that will start a long process that updates product information. As the process is running, I want to provide the user with constant updates on which product that process is on and the status of the products. I've been having trouble getting this to work. I add information to a log text file and I was thinking that I'd redirect to a new page and have that page use Javascript to read from the text file every few seconds. My question is has anyone else tried this and does it work fairly well?
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Jan 30, 2010
I've asked this before but I was hoping for another answer and perhaps some code samples because I've been having a difficult time with this. I have an asp.net page. The user hits the "Run" button and I have code IN AN ASSEMBLY, not in the APP_CODE folder that is called and runs a long process that moves product info from a file into the database. While the user waits, I would like them to see status updates like what product the import process in on and status info. I'm assuming I'd break off into another thread and use Ajax but I have no idea how to do this.
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Jan 30, 2010
I've been having a difficult time with this. I have an asp.net page. The user hits the "Run" button and I have code IN AN ASSEMBLY, not in the APP_CODE folder that is called and runs a long process that moves product info from a file into the database. While the user waits, I would like them to see status updates like what product the import process in on and status info. I'm assuming I'd break off into another thread and use Ajax but I have no idea how to do this.
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Apr 14, 2010
I'm trying to make a progress bar that updates the user on the progress of the AJAX call.
My immediate thinking was that I need an AJAX call to start a thread on the server, allowing the starting AJAX call to finish, and allowing the thread to send updates back to the user.
For the purpose of simplicity, disregard the actual progress bar functionality (I was thinking of implementing one of those JS bars, with fancy colors and effects ;), but if I can get an update from the thread, then updating a simple JS progress bar becomes trivial ;) )
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Jul 21, 2010
I know that similar questions have been asked all over the place, but I'm having trouble finding one that relates directly to what I'm after.
I have a website where a user uploads a data file, then that file is transformed and imported into SQL. The file could be up to 50mb in size, and some times this process can take 30 minutes or sometimes even longer.
I realise I need to palm off the actual work to another process, and poll that process on the web page. I'm wondering what the best approach would be though? Being a web developer by trade, I'm finding all this new Windows Service stuff a bit confusing, and I just wanted somewhere to start.
So:
Can I do / should I being doing this with a windows service? if so, how?
Should I use WCF? If this runs under IIS, will I have problems with aspnet_wp.exe recycling and timing out my process?
clarifications
The data is imported into sql, there's no file distribution taking place.
If there is a failure, it absolutely MUST be reported to the user. The web page will poll every, lets say, 5 seconds, from the time the async task begins, to get the 'status' of the import. Once it's finished another response will tell the page to stop polling for status updates.
queries on final decision
ok, so as I thought, it seems that a windows service is the best idea. So as to HOW to get it to work, it seems the 'put the file there and wait for the service to pick it up' idea is the generally accepted way, is there a way I can start a process run by the service, without it having to constantly be checking a database table / folder? As I said earlier, I don't have any experience with Windows Services - I wondered if I put a public method in the service, can I call it somehow?
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Sep 30, 2010
I would like to create a progress bar with real time updates on the different method calls that happen on a button click in asp.net 1.1. I have seen some examples but nothing that provides updates on the progress bar while the server side operation executes.
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Jun 11, 2010
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Feb 12, 2010
What are your most successful ways of running a long process, like 2 hours, in asp.net and return information to the client on the progress.
I've heard creating a windows service, httphandler and remoting can be successful.
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Nov 30, 2013
How to show progressbar when processing a text file of million lines?
I checked your thread --> [URL]
But what I want is the progressbar should show percentage exactly.
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Mar 19, 2011
How can I show loading image for the user while executing long running process in an ASP.Net Ajax application? Is there a way other than using Page Methods? Any ideas?
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Mar 18, 2010
In an asp.net web form, I keep getting a connection reset error message. The page is doing a some long running processing (about 2-5 minutes).
I have no problem when the web request comes from the same machine as the web server. But when the request originates across the network, I get a connection reset error about 1:30 or 2 minutes into waiting for a response.
I have set the in web.config for this application and put the application it's own application pool.
What else can I try?
Edit
The purpose of this page is to accept input from the user, calculate something, and send the result back to them. The long running calculation isn't something I can offload until a later time.
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Mar 18, 2010
Want to display staus of long process. when user click on button calling some function which will return the percentage of work done .I want to display that persentage in some where in the page.How can i do it?
private void ImgButtonadd_Click(object sender, System.Web.UI.ImageClickEventArgs e)
{
int persentdone=0;
for (int iRow = 0; iRow < Rows; iRow++)
{
persentdone=getworkprocess(file(iRow));
}
}
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Oct 26, 2010
i want a event/process specific progress bar...
i.e. in a form i will take the inputs from the client and then save it in database and show some after result to client...
so in between i want to display the progress bar that 10% 27% 36% ..... 100% complete or any loading.gif image.
if the saving the form will take 1 min then the progress bar is on for 1 min or else if saving take 10 sec then progress bar is for 10 sec...
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Jun 11, 2010
When my Application face a long-time process, i.e fetch a query (SELECT a, b, c FROM d)This query needs 10 seconds to be completed in the MSSQL Management Studio, but when the ASP.NET application try to fetch it, it refuse to return any response to any other requests made on that Server.
I am hosting my Application on VPS Server with good specifications, and I am giving this example the (SELECT a, b, c FROM d) just to tell you the issue, it can be any process, maybe processing a movie, or even fetching some data through external API that is experiencing some slow-down,or whatever.
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Jan 28, 2010
Note:- i don't want to use updateprogress etc. control of ajax
on button click, long task(e.g thread) runs in my webpage for about 4-5 minutes.I want to show status to user either by a processing image through javascript(image must be shown in a certain part of page other part of page will remain intact) or an exact status of process if possible. i have tried a lot but all in vein.
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May 14, 2010
Situation:I have an ASP .NET application that will search through docs using Lucene. I want to run the initial indexing (the index will be incremental after the initial run so there wont be need to index the whole directory again in future). Currently, I have about 5GB of docs (45000files).Problem: My application times out before completing the process. I have altered the TimeOut like this:HttpContext.Current.Server.ScriptTimeout = 200000;but it still does not complete the process.
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Jan 20, 2011
On my current project I have to accept 2 Excel spreadsheets that will be uploaded by clients, process them and create a download package based on this information. This process includes extracting data from the sheets, updating our databases and building several PDF files for the download package. This takes between 15 seconds to 2 minutes to complete, depending on the complexity of the request. Naturally, I want to show some kind of processing indicator rather than just leaving the user hanging while the page loads.
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Aug 13, 2010
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Oct 24, 2010
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foreach (var url in urls)
{
string html = GetContent(url);
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{
using (var reader = new StreamReader(stream, Encoding.UTF8))
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}
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Aug 25, 2010
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Example:
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I have tryed to pass the text value to the label but it shows the changed text only after the event for the button click is finished.
I tryed using timer but as soon as i click the button the refreshing stops.
I tryed progress template and UpdateProgress without success. (I know we can update at the start and end of proccess using this)
I dont want to use iframe (I know we can do using iframe)
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Jul 7, 2010
I am trying to create a progress bar for page load as it takes long to load. I need help to resolve jscript error 'null' is null or not an object on line $get("btn").click();
[Code]....
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The new window is named so there is only ever one instance of it.
What I'm trying to do is this.
Open a new window (if its not already opened) and ensure it is on top of the parent window. The new window is a smaller size so the parent window is still visible beneath. On the first occurance the new window opens above, however when I refocus on the parent to click again, the new window updates but does not refocus by putting it back on top.
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Jun 24, 2010
We have a requirement in our project where we have to show the progress of pdf download..(Ex: 1kb/8kb)..this has to be in javascript only(only on client side).
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Jul 21, 2010
Disable a post back from asp.net i.e. buttons, links, gridview page index changing and sorting etc when a post back is already in progress. Target browser is IE 6+. I've written these 2 javascript I am not sure how to apply it on GridView Page Index changing.
[Code]....
But I am not sure how to attach the VerifySubmit to non prompting controls like gridview pager.
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Mar 24, 2011
So at the moment I have a literal to which I assign a value to from database. I.e an Introduction to a programme.
What I am looking to do is i.e if the text is larger than 100 Characters, to only display the first 100 Characters and then display a javascript link "Read More" which when clicked displays the rest of the content.
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