Architecture :: Web Page Pre-process?
Apr 19, 2010Is it possible to pre-process the web form (e.g. replace some strings with other strings) when it's requested while not executed?
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Similar Messages:
Architecture :: How To Process Data After Page Is Completely Loaded For The User
Aug 23, 2010I have some logging that has to be done, which are some database update or inserts.
However this logging is of no importance to the user, so I only want to process the data/logs after the page is completed for the user.
As of now, if I process the data while the page is loading, I go from 1.4 to 2.0 speed (server side time processing of code), which is quite a bit comparing it is of no use to the user.
So I want this code only executed after that the page is complete.
I've been checking out Ajax, async pages etc, but the problem is it still gets executed before the page is rendered to the client, which means the client will have to wait longer then it is not being processed.
I've been checking out Threadpool.queueBackgroundWorker, however if I get it correct, this will still be executed before the page is shown to the user, as it has to complete before the prerender.
Then I thought about creating a new thread, and do the processing there, which would not have my page waiting to complete the data/logging.
However when I have 100 or 200 users loading pages at the same time, then that would mean I would be creating 200 threads on those loads, which I doubt will be good for performance. So if I want to solve this, I would have to create my own threadpool and only assign for example a max of 40 threads to it which can process the data.
All I want to get done, are some update/inserts into database after the page is rendered and shown to the user. I don't want the logging to slow down the pageload for the users obviously. I want that logging or no logging makes no difference to the pageloadtime for the user at all.
Architecture :: How To Run Code In A Separate Process
Nov 3, 2010I am not sure exactly which topic this post should go under...
Here is what I am doing.
I have a web form where a person will edit their blog article. At some point, once they are done editing, they can click a button "Publish Blog Now".
Once the blog is published in the click event on the server side I am doing a query to get a list of subscriber email address.
These are people who subscribed to this blogger and wish to receive an email notification whenever this person publishes a new blog.
What I just realized today is that my hosting provider only allows me to send a maximum of 200 emails per hour. Which means in my loop I need to sleep for roughly 20 seconds between each email notification sent. But I dont want the user who clicked the publish button to have to sit there and wait while that process is going.
How can I return to the user but yet continue to run some code on the server side to send out the emails in the background even if user closes web browser?
This is an ASP.NET web application targeting .net 4.0 and I am using c# as my back-end language and VS2010 as my development tool.
Architecture :: Schedule The Process In The Application Server?
Apr 11, 2010Coming to my task, I have to schedule a process which will delete all the files in the paticular table with particular key.I have the stored procedure for the deletion. What all I need is, How to schedule this process in the application server.?
View 5 RepliesArchitecture :: Process Of Creating An Audit Trail System?
Jun 9, 2010I am in the process of creating an audit trail system. Simple enough. Certain fields require audit trail. What is the best design concept to allow this to work in multiple applications without having to change much? I would of course leave it to the admin of the site to add what fields should be audited, but the logic is the problem. Would implementing the interface IComparable be a place to start? My initial thinking is to compare 2 arrays against eachother and do an insert of what fields are in question. Array1 are the fields in the form, array2 are the fields from the sql table that require auditing.
View 8 RepliesArchitecture :: Running Time Consuming Process Behind The Scene?
Dec 23, 2010My web application currently requires users to upload files, after which I take it for "further processing". This processing is VERY time consuming and can take a while before the control gets back to the user. I would like to run this in the background and not have the user wait until this completes.
I know this question has been asked in this very forum before but I'm not able to understand or I'm not able to proceed in the right direction. My understanding is there are a few ways I can go about this
a) create a BackgroundWorker process in my Global.asax file that will spawn a process and take care of the activity.
b) create a web service that will do the processing for me .. (how?)
c) Use Ajax (Again how?)
Architecture :: Asynchronous Page Processing In 3 Tier Architecture?
Jul 30, 2010I am working on 3 tier architecture: UI, BL, DAL. In my UI i have following code for Asynchronous page processing:
[Code]....
But I want a database fetch operation to be performed in this asyncronous method. And due to 3 tier arch. i am unable to do this in UI Layer. Can anyone guide me that how can I implement Asynchronous processing in 3 tier architecture? Note: If you are going to place EndAsyncWork1 in DAL then show that how can I return a value back to UI layer from this function.
[Code]....
Configuration :: Process.start (System.Diagnostics.Process) - Execute A Batch File
Sep 7, 2010I've written a aspx.net(C#) page that after the user has done what they do on the page they hit a Submit button. The Submit button
1) takes the work the users was producing on the page and writes it to a file.
2) attempts to execute a batch file.
The call to the batch file is executed via:
protected void Execute123EDI()
{
try
{
string File = @"c:80sAdminSendV80s.bat";
lblCancelled.Text = lblCancelled.Text + File;
Process proc = new System.Diagnostics.Process();
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.LoadUserProfile = false;
proc.StartInfo.UserName = "administrator";
proc.StartInfo.RedirectStandardOutput = true;
System.Security.SecureString secPass = new System.Security.SecureString();
string paswd = "123abc";
for (int i = 0; i < paswd.Length; i++)
{
secPass.AppendChar(paswd[i]);
}
proc.StartInfo.Password = secPass;
proc.StartInfo.FileName = File;
proc.Start();
FileStream fs = new FileStream(@"c:80sAdminSendV80sOutput.log", FileMode.Append);
StreamWriter sw = new StreamWriter(fs);
sw.Write(proc.StandardOutput.ReadToEnd());
proc.WaitForExit();
sw.Close();
proc.Close();
}
catch(Exception ex)
{
lblDebug.Text = lblDebug.Text + ex.Message + "<br/>";
}
If I watch the processes tab in Task Manager on the web server I see "cmd.exe" under the context of 'administrator' but it just hangs. For test purposes c:SendV80s.bat: copy c: oot.ini c:zzz.txt
If I logon onto the webserver's console and execute SendV80s.bat it works and exits without issue. But when I execute the same batch file via the Submit button it gets stuck executing in Task Manager/Process. I believe this has something to do with the fact that cmd is not running in a full environment/desktop context. I just noticed this on the actual console of the webserver (not in my RDP console but console 0 instead)
A pop-up box stating: CMD.exe Application error The application failed to initialize properly (0xc0000142). Click OK to terminate the application. And when I click on the OK button my ASPX page's WaitForExit is satisfied and the continues processing normally.
Long Running HTTP Process - How To Put In Separate Process
Jul 21, 2010I 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?
Execute A Process Remotely With System.Diagnostics.Process
Feb 26, 2010I'm working on an ASP.net app I'm trying to execute a process remotely , using System.Diagnostics.Process class here's my code:
ProcessStartInfo startInfo = new ProcessStartInfo(@"C:TestCommand.exe");
startInfo.Domain = "myDomain";
startInfo.UserName = "MyUserName";
SecureString sec = new SecureString();
foreach (char item in "MyPassword")
{
sec.AppendChar(item);
}
sec.MakeReadOnly();
startInfo.Password = sec;
startInfo.UseShellExecute = false;
Process.Start(startInfo);
I keep receiving an exception with the message "Logon failure: unknown user name or bad password". Im absolutelly sure that i'm submiting my correct username/pwd
Web Forms :: The Process Cannot Access The File 'c: Empmy.pdf' Because It Is Being Used By Another Process?
Apr 3, 2010I've developed a popup email .aspx used on our intranet based web app that is auto generated with .pdf's attached. I'm developing with VS 2008 ASP.Net 3.5 C# and System.Net.Mail.MailMessage. I can create and send the email with no issues. The problem is with any attempt to open or delete the attachments I get the above error. The .pdf's a copied with the following code:
FileStream fsr = new FileStream(inFilename, FileMode.Open, FileAccess.Read, FileShare.Read);
BinaryReader reader = new BinaryReader(fsr);
byte[] bytes = new byte[fsr.Length];
reader.Read(bytes, 0, bytes.Length);
FileStream fsw = new FileStream(outFileName, FileMode.Create, FileAccess.Write, FileShare.Write);
BinaryWriter writer = new BinaryWriter(fsw);
writer.Write(bytes, 0, bytes.Length);
// clean up
writer.Flush();
writer.Close();
writer = null;
fsw.Close();
fsw.Dispose();
fsw = null;
reader.Close();
reader = null;
fsr.Close();
fsr.Dispose();
fsr = null;
Later after sending the email I:
mailMessage.Dispose();
mailMessage = null;
foreach (string fileName in attachments)
{
if (File.Exists(fileName))
File.Delete(fileName);
}
The error occurs at: the File.Delete(fileName);
how I can delete or reopen these files after sending the email?
How To Recognize Whether The Process Is The IIS Worker Process From Within A .NET Code
Dec 25, 2010Dear ladies and sirs.
I have a .NET infra code running both within the IIS worker process and within a desktop client app. How can the .NET code determine whether it is running within an IIS worker process?
I know that I could check the name of the process (w3wp.exe, for instance), but I would like a more robust approach. I wish to make a side note. This is not a production need. I need this information to enable certain scenarios useful during the development and testing phase. Specifically to ease the testing of secure vs non secure configurations.
C# - Tracking The Process Of A Singleton Process In A Web Application
Jan 26, 2010When I hit the run button (in my Default.aspx), a process starts (this process contacts a webservice to get some files, etc). How do I: Ensure that only a single process is running at a time (i.e. if I refresh the browser, I don't want to start the process a second time)Track progress - there are 4 points of the process (at 25%, 50%, 75%, 100%) that I want to track, and when each part completes, I want to update the progress bar. I have a status object for the running process, but the question is how to update the progress bar automatically? Do I need to use threads to achieve the above two?
View 1 RepliesWeb Forms :: Process Cannot Access The File It Is Being Used By Another Process?
Nov 6, 2010My code is that I want to create a log file and log it upon a new user browsing the site. However, what i did was I put in a 6 second delay and then used another browser to access the page. And it threw an Exception saying it is being used by another process which is true. So how come I set it so that, if IT is being used by another process, WAIT and retry every 500 milliseconds until it becomes free/available?
here's the code:
protected void Page_Load(object sender, EventArgs e)
{if (!IsPostBack) // if this is the first time page loads, set k to 1
{ lognewuser();
}}
[Code]....
The Process Cannot Access The File 'C:inetpub' Because It Is Being Used By Another Process
Mar 28, 2011I am having the text file which is used to track all the ip address which is available in the network and replace the content from"Reply from 172.29.116.3: bytes=32 time=1ms TTL=255" to 172.29.116.3.
For this task i am having 2 functions 1.runCMD() Function is used to create a file which ping all the ip address between 3 to 254 ("Reply from 172.29.116.3: bytes=32 time=1ms TTL=255").
2.Another function textFileReplace() which is used to replace the text from "Reply from 172.29.116.3: bytes=32 time=1ms TTL=255" to 172.29.116.3.
This process will continue every 30 minutes..
But i am having the error while accessing the function textFileReplace() as The process cannot access the file 'C:inetpub' because it is being used by another process.
How To Display An In Process Page
Jul 6, 2010I posted this on the vb.net forum and was told I should post it here.
What I'm trying to do should be simple but it hasn't been for me. I have a page that produces several Crystal reports. It has a button for each type. I use the button's onclick feature to process that particular report.
What I would like to do is show an 'in process' page while the report is processing (some of them take a minute or so) and then come back to the choices page once the report is complete.
If I place the code to make the 'in process' page visible in the onclick, then I don't see the 'in process' page until the report is completed. I've tried setting a session variable and redirecting back to the page and haven't been successful.
Here is the html:
[Code]....
I know I can simply call another page (like I did in the old asp app) but I shouldn't have to do that in .net.
How To Run A Long Process From Page
Feb 12, 2010What 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.
Page Loading Process Very Slow
Jun 3, 2010i hit a case when my page loading is very very slow. I have find out that my page is slow for no reason. The read data process from database is fast and all the server code execute quite fast. The problem is the page loading process is slow, very slow. I am thinking one of the possible cause is jquery itself.
View 3 RepliesPossible To Load And Process A Foreign Web Page
Mar 2, 2010I need to get a certain web page, process the data a bit and do a db search or two.I hope my subjectline is clear enough. I load some data from an database with wep GUI. But there are character set problems with the data, and I have to fix those, before the data gets mangled by the IE. And I cant fix the source database or web page.
View 4 RepliesMaster Page In Vb.net Needs To Be A 2 Page Process?
Nov 18, 2010The question is exactly as the title sounds.
I have 1 master page in asp.net(vb.net). now this master page has 1 form which has 10 textboxes in it. On the other hand the master page has about 10 different links in it (outside the form), that link to different pages.
My question is how do i keep all this same way, and only divide the form in 2 pages. 5 textboxes for first and 5 textboxes for second. So basically when master page loads, it doesnt show the 10 textboxes as original, but shows only first 5, and when clicked "continue", the next 5 textboxes load on the same place as the first 5 were. The rest of links in page and rest of the page, remains exactly the same.
How To Disable The Whole Page Until The Loading Process Gets Completed
May 28, 2010i have one web page in aps.net and i want that page to be disable untill the whole page loading process gets completed.
View 3 RepliesSecurity :: Put All The Steps In The Wizard Process Into One Page?
Feb 18, 2011I am using CreateUserWizard control.. Is there anyway, I can put all the steps in the wizard process into one page. I do not like the idea of sifting through multiple pages to create a user. I would like one page where user goes through different sections (panels/divs) and creates a user ultimately all from one page.
View 6 RepliesSecurity - Spin Off A Command Line Process From A Page?
Mar 15, 2011I have a web page hosted on the server and a zip file on the server's file system. The page is spinning off the 7zip process with some arguments (location of the zip file and destination folder for unzipping) but it seems to raise permission issues, of course. For each file in the archive I get "Can not open file [filename]". I tried windows authentication and running the process with a username and password but nothing worked properly. What would be the best way for unzipping the file on the server from security point of view? Ideally, I would also like to have this event driven so the file is unzipped as soon as it arrives on the server (this is when I request the page).
View 1 RepliesVS 2010 - Disabling Page Whilst Serverside Process Happens
Apr 23, 2012In my css I have defined:
Code:
#overlay
{
position: fixed;
height: 100%;
width: 100%;
z-index: 1000000;
[Code] ...
And then back on my client I have:
Code:
$("#Button1").click(function () {
var fileName = $("#MainContent_FileUpload1").attr("value");
var jsonData = '{ "fileName" : "' + encodeURI(fileName) + '"}';
if (checkFileExtension(fileName)) {
[Code] ...
Why my overlay doesn't display.
SQL Server :: Error "Transaction (Process ID) Was Deadlocked On Lock Resources With Another Process And Has Been Chosen"
Jul 23, 2010I have a stored procedure which fetches data after joining 8-9 tables and inserts that into a temp table. It was running fine till now, but now when the amount of data fetched have exceeded 20000, the SP is breaking. I have debugged the sp and found that this main query is failing after returning arround 15000-16000 records.
The error message says Transaction (Process ID) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. I know what is deadlock, but when i checked with SP_LOCK stored proc i only found that my process is running on database only. So how is this getting deadlocked when there are no other processes running simultaneously on server.