Can Put Code In The BeginRequest Handler To Check Whether Any Such Tasks Are Due
Mar 23, 2011
I am writing a quick-and-dirty in-house ASP.NET application that needs to be able to run a task after a specific period of time. If it was a proper application, I'd probably use a windows service but I don't really want to bother with the extra complexity of that.I could put code in the BeginRequest handler to check whether any such tasks are due, but of course nothing would happen if nobody is using the application.at the moment the best option I can think of is something like ShellExecute("nohup sleep 1000; wget http://server/dummypage.aspx") (if you'll excuse the mixed windows/unix nomenclature).
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Nov 12, 2010
anyone use/ know of any library or website with code snippets or samples with many of the mundane boilerplate code and/ or functions like data access, data scrubbing, recursive routines...
preferably c# since most of .net in the real world is c#. VB is ok too.
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May 24, 2010
I have just started to look at the new "System.Threading.Tasks" goodness in .Net 4.0, and would like to know if there is any build in support for limiting the number of concurrent tasks that run at once, or if this should be manually handled.
E.G: If I need to call a calculation method 100 times, is there a way to set up 100 Tasks, but have only 5 execute simultaneously? The answer may just be to create 5 tasks, call Task.WaitAny, and create a new Task as each previous one finishes. I just want to make sure I am not missing a trick if there is a better way to do this.
[code]....
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Oct 3, 2010
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Sep 24, 2010
I'm trying to check if the component already has the event...In my example here, I would like to know if the CollapsiblePanel already has the expandComplete handler before I add the event
[Code]....
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Nov 22, 2010
There are 10 check boxes in one page. How to code to allow user only check one?
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Nov 22, 2010
There are 10 check boxes in one page. How to code to allow user only check one?
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Sep 5, 2010
Does BeginRequest and EndRequest for an ASP.NET HttpApplication always occur on the exact same thread for a given HTTP request from a client?The reason I ask is that I am seeing some very strange behavior where a ThreadStatic variable is not null inside of an Init method for an IHttpModule. I set this ThreadStatic variable to a value on BeginRequest and null it on EndRequest.
However, my IHttpModule Init method should be called outside of the BeginRequest/EndRequest period, so the only way I can think of that this ThreadStatic variable would have a value when my Init method is called is if EndRequest occurs on a different thread than BeginRequest and thus the value is still not null later on when ASP .NET tries to use that same thread to create a new HttpApplication instance...
I am running IIS 7 in integrated mode.
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Oct 29, 2010
I was under the impression that static files (CSS, images, @font-face files, etc) bypassed ASP.NET completely, and were served directly by IIS. However, my BeginRequest event handler is being called for every HTTP request, including those for static files. This concerns me because I'm creating an Entity Framework data context to be used for the lifetime of each request in that event handler. I don't want to create those contexts if they're never going to be used.
I'm using IIS 7 on Windows 7 Ultimate with so special handler mappings defined. Do I have it wrong? Should these events be firing?
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May 26, 2010
I have a wap site with susciription and I want to check if users are authorized to see some pages. I have decided to use http module. Should I use AuthorizeRequest or BeginRequest to check the users status? and why?
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Sep 13, 2010
we are having some weird issues with URL Routing in ASP.NET 3.5.
We have a search box that does a search and redirects to a routed URL.
When we search for the first time (aka Press a button that forces a postback) everythign works as expected. we get:
1. BeginRequest event.
2. Determines Route
3. Calls Routehandler to match the route item to the actual destination page
4. Routes the url appropriately.
After you do one search successfully and try again it fails to call the BeginRequest event. Because of this the routing data never gets called and so the url is never routed to its correct destination. What is weirder still if we append a "/" (trailing slash) to the url after the initial postback it DOES work properly again.
So our search route looks like this
mydomain.com/Search
entering a term and pressing the SEARCH button would yield a result url like this:
mydomain.com/Search/Results/MySearchTerm
Going back (after 1 successful search) you then need to use this url or else BeginRequest will never fire:
mydomain.com/Search/ < (note the extra "/" at the end)
why the BeginRequest event never fires unless the slash is appended?
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Jan 25, 2011
Are beginRequest and endRequest working while sending and retrieving data with jquery? In my observation these functions (see below) are not working anymore. Is this because it's not a real postback?
function pageLoad(sender, args) {
Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(beginRequest);
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(endRequest);
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May 6, 2010
I'm developing IP Blacklisting HttpModule in asp .net application and I found one very annoying thing. Each request to the asp net page generates tens of "subrequests" to application resources like images, client side scripts, styles etc.
Now in my application I'm listing to the BeginRequest event and when it is fired I'm loading Dictionary with blacklisted IPs from application cache and check user's IP against it. I've made a simple log of what is actualy happening during each page view, here are the results:
[Code]....
As you see, one request to Login page causes BeginRequest to fire 18 times, there is 18 dictionary loads, 18 lookups etc. That's not the way I want it to be.
Is there any other event that is raised only once per each request? Where do you place the blacklisting mechanism in your applications? I know I can do it through ISAPI filter, but the catch is, this site is on the shared hosting and I'm not sure I can use it on their IIS. Also I'm not sure if ISAPI filter can access some piece of cache with this blacklist (I don't want to load it from DB on each request, that's obvious).
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Dec 17, 2010
I'm debugging an ASP.NET MVC 2 application running on .NET 4.0 (Windows 7), currently inside of Cassini, the Visual Studio Debugging Web Server.All was running well, when I suddenly was having exceptions in my Application.EndRequest handler. After investigating into this issue, I found the reason was that Cassini was calling EndRequest on a different thread than BeginRequest (then, a ThreadStatic variable which was set in BeginRequest and used in the EndRequest handler was null, since on this thread, BeginRequest was never called).What could be the reason for Cassini to execute BeginRequest and EndRequest on different threads?I know the reason could be an 'Async' Page directive (see Do ASP.NET Requests always BeginRequest and EndRequest on the same thread? , but I have no 'Async' attribute in my Page directives).
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Dec 22, 2010
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Mar 24, 2011
I get an error when attempting to navigate to the page containing this gridview. The error is
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here my page directive:
[Code]....
Here is my markup. Eventhough SelectPackage_Click is present in the code behind, it is not wired up with the button control.
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Jan 24, 2011
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Nov 15, 2010
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Jan 25, 2011
I have on my page.aspx CheckBox with IDs representing the month.
Code:
<asp:CheckBox ID="January" runat="server" Text="Janvier" />
<asp:CheckBox ID="Febuary" runat="server" Text="Fevrier" />
<asp:CheckBox ID="March" runat="server" Text="Mars" />
<asp:CheckBox ID="October" runat="server" Text="Octobre" />
<asp:CheckBox ID="November" runat="server" Text="Novembre" />
<asp:CheckBox ID="December" runat="server" Text="Decembre" />
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[Code]....
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Feb 23, 2011
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I am creating a check all box in a gridview from the code behind page by
case
DataControlRowType.Header:
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[Code]....
i click in the checkbox -- the page reloads and the checkbox disappears.
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I am looking for code to upload to a shared web host that will return whether or not the web site is running in integrated pipeline mode.
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