Asp.net - Is HttpModule Shared Among Working Threads
Apr 11, 2010Do I have to lock access to instance members?
public class HttpModule : IHttpModule
{
//...
Dictionary<int, int> foo;
void UseFoo(int a, int b)
{
foo[a] = b;
}
}
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[Code]....
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CodeFile="Login.aspx.cs" Inherits="Login" %>
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Jan 6, 2011I built a little web application that displays charts. I was thinking that it might be useful for the superuser of the app to do a complete data refresh, however this process takes around 10 minutes to complete. I was thinking perhaps the user could click a button that would start off a new thread to do a data refresh and subsequent clicks would kill the thread and restart the data population process. The user would then be free to browse about the site and view the charts as their data is populated.
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Aug 20, 2010I'm trying to get a better handle on how threads work in ASP.NET, so I have a test site with a few pages, and I have a test WinForms client that creates 40 roughly concurrent requests to the test site. The requests take about 5-10 seconds to complete--they call a web service on another server. When I run the test client, I can use Fiddler to see that the requests are being made concurrently. However, when I look at Performance Monitor on the web server, with counters "ASP.NET Apps v2.0.xxx/Requests Executing", "ASP.NET/Requests Current", "ASP.NET Requests Queued", these counters never display more than 2.
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Basically, the ASP.net worker procecss is creating 2 threads which invoke the HTTP handler in my application simultaneously when a certain page loads.
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Edit:
The underlying resource is a sql database with a user table (has a name column only). Here is a sample code i tried.
[TestClass]
public class UnitTest1
{
[TestMethod]
public void Linq2SqlThreadSafetyTest()
[Code]....
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public partial class _Default : System.Web.UI.Page, IServiceCallback
{
private IService proxy = null;
private static TextBox _textBoxtest;
protected void Page_Load(object sender, EventArgs e)
[Code]....
how to update my textBox from callback event.
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Jun 15, 2010When I do ThreadPool.QueueUserWorkItem, I don't want unhandled exceptions to kill my entire process. So I do something like:
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try { FunctionIActuallyWantToCall(); }
catch { HandleException(); }
});
Is this the recommended pattern? It seems like there should be a simpler way to do this. It's in an asp.net-mvc app, if that's relevant.
Security :: CurrentPrincipal In Background Threads?
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foreach (DataRow dataRow in dataTable.Rows)
{
sendMails();
[code]...