C# - Run One Method 1000 Times In A Short Period Of Time?
May 28, 2010
Let's say we are building some public service that grabs the setup of a user (what server, user and pwd he wants to perform the call), logs in into that server and do some processing...
the process takes about 15 seconds to complete each user has a different setup (server/user/pwd), so the process needs to run against each one
if 1000 users tells the system to run the method at 1:00PM
How can I insure that the method is processed in the next 15 minutes?
What should be the correct approach to this little problem?
I'm thinking that I need to do something Asynchronously, and parallel processing could speed up things, maybe throttling the processes, maybe execute 100 calls per each 30 seconds?
I never did something like this and would love to get your feedback on ideas and future problems just to spend 100 hours of work and realize that I took a wrong road
My web site seems to be running quick. I have not deployed my web site yet, so I am the only one using it right now. The problem I have is if I am testing out the site and then I stop using it for a short period of time, when I come back the web site takes about 8-10 seconds to startup again. I did not rebuild the site I just simply stopped using it for a short period of time. It seems like after a short period of time I have to 'wake it up' again. Is this normal? How can I prevent this?
Because of some situation , I had to save users password in session state for short period of time .it unsafe holding some important data in session state?
i am using sql server inbuilt mail system for sending mail.and i made SP to call dbmail sp
now my problem is when i call sp it get executed fine but in last suppose 1000 mails queued then 1000 times i get mail queued.and that my connection time out .i extend connection time out limit but i get error msg like
"Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. Mail queued."
my mail get queued well proper but due to 1000 or 100000 mail queued its lost of msg make problem.
I have Website Application , in which i have method ..i want to execute this after every 10 days automaticlally ..what is the concept of doing this , provice some code etc. if possible ..
Me with C#.net and sqlserver 2005. In my application there is a need to insert 1000 products details into my sqlserve table. I am using a for loop to insert and its done using a stored procedure, but when this code executes it stops mostly after 80 iterations and showing the error "Object reference not set to an instance of an object". How can I over come this? How can I make a steady sqlconnection?
I have a data grid in which I have to display around 12,000 records. Even if I do paging it is difficult to display all the records. Is there any other control or something else so that I can display all these records. Even if I make these as alphabetical also, some times I have to load 1000 records in a page which is difficult.
A customer has a site written in ASP.NET and C# (.NET4 VS2010). I have been asked to link videos into some pages. The videos are hosted on vimeo and are flagged as private so general public can not view them (on vimeo.com). The user has stipulated that if an unregistered user (unregistered on the customers site) views a video they should only see the first 5 minutes. After those 5 minutes they should be prompted to register or log in. I'm fine with forms authentication in ASP.NET.
At this stage I do not know what type of account the customer has on vimeo, I am waiting for that information. I do not have any code examples to add.
Ideally I need to prevent users from downloading (either directly or by some other way) videos maybe by obfusticating the actual urls in some way.
What I was wondering is if controlling the length of a video being viewed from vimeo, especially in the registered/unregistered user context on an ASP.NET site.
Adding a label control inside of a div will short circuit my image buttons onClientClick method call.
I have an Asp.net panel control. In that markup I have an image button control. My image button when clicked will not call my Java Script method unless the image button control is wrapped with a div or table <td> tag.
That is fine with me. However Just to the left of my image button I have a label control that must be on the same line/row of my image button. If I wrap both the label control and image control in a div or td tag then
my Java Script method is not called. So somehow wrapping the label tag with a div or td results in the short circuiting of calling my Java Script method.
Why is this? I must have my label and image button control on the same line, so that is the requirement.
I tired using a span tag instead of a div, but that does not work. Below is my Asp.net markup code.
I have problem in publishing news.My module is about news.I want to develop function as publishing news in given time period,such as 1 hour or 2 two hour later it will automatically be taken up,i don't want to put it in web immediatelly.
I want to redirect users when they reach a page in my web project. I want this to happen in page load after say 2 seconds.
I'm using this code on page load:
[Code]....
With this code, as soon as the page loads it redirects to that page. There are some text in this page that i want the user to see while the page is redirecting. What are my options? Should i use Timer? and tell it to redirect after two or three ticks?
I want that a specific asp.net control get refresh within a specified time period like there is datalist and i want that its content will be change after 10 sec.
I have a requirement of automatically disabling a Button (Submit Button) after certain period of time, say 5 mins. How can we achieve this. I use C# and Framework 2.
In my project I have the requirement as follows.sending a mail to registered users with sign in link details.After a certain period of time elapses, the signin link should not work when user clicks on it.
In our application, we store the most number of users online. We do this by tracking what page each user is on currently and upon login, delete users who have been inactive for X minutes and then take a count of the users online, overwriting the most number online if this is higher.
How can we change this to track the number of users online over a time period, so we can look at a line graph of the number of users online. I guess we'll need a cron to run every 1/2/5/10/20/30/60 minutes to track the number online? Then how would be store this data, the table would get very large. I would think the likes of Statcounter/Analytics would have a better way of storing this data.
using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq;
[code]...
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 74.125.155.109:465Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.Exception Details: System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 74.125.155.109:465Source Error:
I got server error when downloading pdf file from my webpage in asp.net."A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond in asp.net."
I'm overriding the Controller.Initialize method to set some stuff before each ActionResult is executed, however I'm finding that the method is being called multiple times for each request (anywhere between 2 - 10 times). I'm running in Cassini.
My hunch is that it is running for all static files (images, css etc) as well as the requested action - although I may be wrong? I thought maybe something was wrong in my web.config but it all looks right to me.
var startTime = new DateTime(2010, 10, 1, 9, 0, 0); var endTime = new DateTime(2010, 10, 1, 16, 0, 0); var interval = 11;
So given a start time of 9am, an end time of 4pm and an interval of 11 how can I find out how many time slots there are between the start and end times?Does that make sense? I know the answer will be 43 time slots, but how to derive it?
As we know when IIS receives the first request for a particular Asp.net application resource, IIS creates an instance of a HttpApplication (defined in global.asax codebehind).When this new instance is created it's initialization happens that also checks all configured HTTP modules.All modules are then instantiated and put in the application's Modules collection (of type HttpModuleCollection)modules are looped through and their Init() method is called (when they register for request events)
As far as I understand it the above scenario happens when a web application is started/initialized (hence application start event).What happens with modules?
Are they (re)instatiated on each request or reused from the Modules property on each consecutive request while the web application is alive? As I understand IIS and Asp.net they are reused through the whole life of a web application.
If they are reused, can we assume that their Init() method is actually a pseudo event handler for application start event? The thing is we can't attach to application level events within http modules. But if they are being reused we could use Init() as application start event and do whatever we'd put in global.asax instead.
Question,Can we assume that module's Init() method is called only on application start event? Could we use this assumption to i.e. register routes for applications whose global.asax codebehind we can't change? web.config is usually accessible and we can change it the way we want.Would this actually work?
Additional info,We can check HttpApplication code and check its InitModulesCommon() method. This one actually calls Init() of each registered HTTP module. What is more interesting is that this method is only used by InitIntegratedModules() and InitModules() methods. Which are both used only in HttpApplication.InitInternal() method. This is the basis of my assumptions, but I would like to know whether someone has abused IHttpModule.Init() for application start event.
I have to create columns dynamically based on a datatable, some field type info and some header texts.
I do that by creating templates.
It created the grid fine and all looks good, however when i click a checkbox and the checkedchanged event fires then something odd happens
The first time i click its fine and i get the expected values in the event
But the second time then the event gets fired with the values from the first time and then again with the values from the checkbox that i actually clicked.. The third time the event gets fired 3 times, first 2 times with the old values and the third with the correct value.
Here is the code:
using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Text.RegularExpressions; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq;........
