.net - Calling GetAvailableThreads For Different Thread Pools?
Oct 28, 2010
I've used the ThreadPool.GetAvailableThreads to monitor the thread usage in a web site, and written the results to a performance counter. To do this, I've had a thread running in the site that does the monitoring. I'd like to be able to monitor this without modifying sites' code. Is there a way I can write a console app that would be able to access the thread pool of a given process, rather than the current process, and call GetAvailableThreads for that pool?
I want to remove checked items from checklistbox (winform control) in class file method which i am calling asynchronously using deletegate. but it showing me this error message:-
Cross-thread operation not valid: Control 'checkedListBox1' accessed from a thread other than the thread it was created on.
i have tried invoke required but again got the same error. Sample code is below:
I'm new to threading and have used it successfully, but limited. I can spawn a thread and have the main thread reference variables in the spawned thread, but I don't know how to allow the spawned thread to reference (and update) variables in the main thread.
Any example threading code I've seen on the web appears to be WAY more complicated than what I do, so I am unable to understand or integrate into my code.
lock (this) { if (!isGoodPassword) Thread.Sleep(2000); } I would expect that this would allow all correct passwords without stalling, but if one user enters a bad password another successful password from a different user would also be blocked. However, the lock doesn't seem to lock across ASP.NET threads.
I want a example of multithreading .i want to use it in a web form not on console.i am using C#.net .and how to use thread.sleep method for a particular thread.
I have a new MVC app and a legacy ASP.NET app under a root website. They are isolated from one another in different application pools.Is it possible to leverage System.Web.Routing at the root website as an umbrella filter to seamlessly route (URL rewrite) requests to one app or the other to be transparent to the user?
to run asp.net and asp classic in separate app pools? The asp classic pages are mixed within the same asp.net application and its sub folders. Basically, I have a site and would like to run the asp.net portion in its own app pool and asp classic in a separate app pool. The intent is to run asp.net in a "web garden" configuration; we can not currently do this if asp.net and asp classic are in the same app pool, due to the fact that the classic portions rely on session variables in process.
We have considered rewriting the classic so that they are self contained in one directory, and switching to an SQL-based session storage for classic. We determined it was easier to attempt to split the app pools, as these two options would require a significant time investment.
Does anybody know if its possible to have your website run on multiple separate application poolsSome BackgroundI am looking into start a shopping center style site. I intend to set up100 folders, each folder on the site will be treated as a separate site.http://www.MyShoppingCentre/JohnsMenswear http://www.MyShoppingCentre/GerrysGardeningCenterI would like to have JohnMenswear running in a separate application poolto GerrysGardeningCenter even though they are both webpages under MyShoppingCentre
We're using an Out-of-Process Session Provider (ScaleOut) for an ASP.NET application and we've noticed that when an object that's not correctly setup for de-serialization inadvertently makes its way into session it will eventually cause the entire process to terminate.
Reproducing and handling this scenario is where it gets even more interesting.
The exception that terminates the process is raised in AnyStaObjectsInSessionState whose implementation is pretty straightforward:
we are experiencing big difficulties in the configuration of ASP.Net state service and II7. The service seems not working correctly because when the application pools recycles the applicatio loose the session.If we try the same configuration in IIS6 it works correcly.What is the correct way to configure the aspnet session state service in iis7?
I've a question I don't know if this is possible or not. I've tried a lot of things till now but could not accomplish on what I wanted to do.
What I want to do is call a web page from another page and some how execute either the page load event or page init event and get the result of the page in the first page.
Page A calls page B. Page B has static text and a label which is being set in page load event.
Page B - Code behind
[Code]....
Page B -- HTML code
[Code]....
Till now what I've tried is using the code below from page A. But this code just returns the Html code and nothing else.
I need an explanation regarding some advice I got on this site. I'm doing a newsletter sending app, and I have my mail sent in a seperate thread so the process doesn't slow down the whole web site. A couple of people advised me to set the threads IsBackground property to true. I did this, but was also courious about what this does, so I googled a bit.
As it turns out, setting the IsBackground property to true indicates that "it's okay if the process shuts down while this thread is still running.". Or as microsoft puts it "Any remaining background threads are stopped and do not complete." I don't know if I got this the wrong way but, wouldn't it be better to leave the IsBackground property to false, so that the spawned thread can complete its work regarding the main thread?
I want to execute a process, but after the process is done i would like to execute a query so i know this process is done.The process called ffmpeg is quite big so i start it and wait til its done with this coding:
So basically here I am trying to wait for my server to connect to my website signaling it that its done and so the page needs to be refreshed(cause sql was updated). Thing is when I try to use the response/request in the thread it simply doesn't want to work.
Here the code
Code:
[code]....
Errors I am getting are:
1. If I have the headers clear thing there it gives requires integrated IIS pipes or something like that. 2.If I don't have the clear headers it says the headers were already sent.
Can we consider that two clients accessing the same method of a web service at the same time are two threads (with all problems involved...) ?Is it the same thing for methods in an asp.net web application ?
I am executing time consuming task in a new thread. ParameterizedThreadStart pts = new ParameterizedThreadStart(WorkingFoo); Thread thread = new Thread(pts);
The WorkingFoo executing the task and keeps track of the progress steps (it can return the total number of "steps" and the current step).
I want to display this information in a progress bar (simple div or ajax control, I don't mind).
I don't want, ofcourse, visually refresh the page that will display the progress. Also I want to reduce as much as possible the number of postbacks. So how do I do that? How to show the current progress from new thread on the web page? Also the page that shows the progress can be closed and re-opned and still get the current status.
I have a thread that runs querying a DB and returning some values. If this values satisfyes a condition, I want to raise a message box (javascript alert) for the client side.
In my system, users can post some tasks in DB, and the thread is going to constantly query the database to check if user has things to do. If user has, the system must alert him through a message box.
I've done javascripts invokings with ClientScript.RegisterStartupScript, and Attributes.Add for buttons. But now I want to call the javascript functions (wich will alert the user that he has things to do) from the midle of a sub (that is executed in a thread), without a submit, load or click event. How can I do it?
I'm developing an ASP.NET forms webapplication using C#. I have a method which creates a new Order for a customer. It looks similar to this; private string CreateOrder(string userName) { // Fetch current order Order order = FetchOrder(userName);[code]....
The problem here is, it is possible that 1 customer in two requests (threads) could cause this method to be called twice while another thread is also inside this method. This can cause two orders to be created.
How can I properly lock this method, so it can only be executed by one thread at a time per customer?
