C# - Synchronize Count Down Time For All Users?

Mar 15, 2010

I need to synchronize the count down time for all users.So it will display identical remaining time to all in asp.net.

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Web Forms :: How To Synchronize Users Requests / Threads

Feb 6, 2011

I have what I consider a pretty complex situation that I am not sure if it can even be accomplished via an ASP.NET web application. (I am using aps.net 4.0) But what I want to do is design a "online auction site" that can handle many autions running at the same time. So I can only imagine eBay and all the other millions of auction sites out there are all doing this someway or another. My biggest concern is that I want to make sure the design here to make the site as effiecent as possible. Here is specifically what I am trying to figure out.

I think I need to create an object (per active auction) that stays in memory for the life of the auction. This object would have at least the following information:

Aution ID, time remaining, highest bidder id, bid price, Thread Control Variable, etc...

Now here is the tricky part that I think is vital for auction sites. Lets say you have 500 users on my website that are all watching the same auction and it is getting down to the last second of the auction and they all click to place a bid at the same time. Keep in mind this may also be at the same time hundreds of other users are placing bids for other auctions going on all at the same time.

How do I get all these requests (bids), for a single auction, lined up so that they are processed "one at a time"? But some how I need to be able to make all requests wait in a queue until it is their "turn" then I would need to be able to update the in memory object, write a record into a SQL database and then begin returning information back to each user.

Based on other development languages I have used in the past I know their were objects that I could create that could be used to get multiple threads to run in order (in other words syncronized). Usually it would be a case where I would be listening on a server socket and could do something like ThreadVariable.Lock, <process the request>, thenThreadVariable.Unlock. What that would do, is force all threads that tried to call ThreadVariable.Lock to wait until no other threads had the variable locked then it could proceed. Obviously the code it processes between the lock and unlock should be as quick and effecient as possible so it does not create a major traffic jam.

Because my thinking is this "object" I am referring to as being in memory, most likely will play a big role in answering the question about getting the requests in a "one at a time" situation it may be the focus of the question is more like how would I create "an object" and store it in memory to be quickly and easily accessed?

And even more generically does this even sound like I am on the right track

I think the topic of "communication to and from users" will need to be a completly different thread.

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Count Number Of Users Locked Out / Approved?

Aug 1, 2010

I have got the total number of registered user's and the total number of users online working without any problems after a search on here.

[Code]....

but I would like to expand this a little. Can any one tell me how I would display the total number of users who are approved and the total number who are locked out.

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Count - Get Number Of Concurrent Users Online?

May 3, 2010

I would like to know the number of users logged into my ASP.NET 2.0 application.

Points to be considered:

1) Simplest way would be to use Application or Cache object to have the counts on Session start or end. However this would fail if there is a worker process recycle. Wouldn't it?

2) Should't make a difference whether the session is inproc/state server managed/ or SQL server managed.

3) Should preferably be seamless to a web-farm architecture.

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State Management :: Count The Number Of Users Per Webpage?

Sep 27, 2010

I have a website that has 10 aspx pages in it, and I'm trying to count how many users are on any one page at a time, and display that number on the web page. I have set it up to use an Application object ("TotalViewers"), and initialize it to 0 in the Application_Start event handler of the global.asax file. My reasoning (probably way off base) is to increment the count on each page load, and then decrement the count on each page unload. The increment part works ok, but when I add the code in the page unload event handler to decrement, it seems that Unload happens before the Page is presented to the client, so the value always stays the same (adds one in page load, subtracts one in page unload).

How else can I track number of users on each page? (simply, becuase I am still a beginner). I have already done some google searching and haven't come up with anything useful.

All my pages are being navigated via a TreeView control.

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State Management :: Current Count Of Users On Website?

Apr 8, 2010

I would like to know if anyone knows of any way or software that will give me a count of the number of unique users to use my site in the last 5 minutes. I want to make some updates to my site during the day but I want to check to see if there is slow traffic then I can do it but if it's busy I can wait till a later time.

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Web Forms :: How To Get Count Correct Answers Of Users In A Quiz

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I am making a online exam project i want to count the correct answers the questions and option are in datalist. Iam looping inside datalist but  i want to know how to count the correct answers and display result...

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Count The Word Who Have A Found More Time In A URL

Jan 2, 2010

how to count that "/" is include n times in the URL

[URL]

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Display Count Down Time In Label?

Dec 13, 2010

I created the form in which i am showing count down time in label.

below is the code

[Code]....

Even i show the time in various format means Hour, Seconds, Tick but difficulty is that i want to show time in "hh:mm:ss" format & Time in label will be decreasing.

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Web Forms :: Count The Loading Time For Page?

Jul 14, 2010

I recently re-develop our company's web system. However, when I just finished everything, our internal user complains that the page is noticable slower than the old one. I tested it on my machine and it seems to be ok. As it is a major concern of my manager, I decide to add a bit of code to return the time comsumed in page loading. Can someone give some idea about it? What I try to know is: from the time user click on "submit" button until the page is fully loaded to the user, how many seconds it costs. I have ajax in the page. Is it possible to do it in js? or any other sort of way is fine too.

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Web Forms :: How To Count Page Load Time

Jan 22, 2011

find page load time,i want to put some progress gif or animation untill the fully page load with all it content

for example.....u have familiar with facebook or orkut u will find some progress animation untill the all data content load

Is there any other way by not using updatepane...ajax

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Count Time Of Button Click In 1 Minute?

Nov 22, 2010

i use asp.net and ajax

I have a button and I want to count that, how many times was the button clicked in 1 minute.if the user clicked the button more than 5 times in 1 minute it will be deny for 5 minute.

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Web Forms :: Update Time Variable Using Count++?

Mar 31, 2010

Can anyone help with with bit of code,i get a time value and store it in a variable,i want to update the variable every second so that it looks as if the variable is displaying the current time,how can i use count++ to update the time every second.

[Code]....

[Code]....

[Code]....

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How To Send Reminder Emails Based On Users Input Time And Day (based On Their Time Zone)

Mar 24, 2010

I need to send emails based on users input time and day (based on their time zone)? Kind of a reminder.

For Example: User input 2:00pm Eastern Time on my server I have different time zone, how to calculate the time and send the email at users time-zone. Its a web application. What is the best way to accomplish it using asp.net c#? If somebody already done it in the past I will be glad to take a look at source code.

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How To Update Bulk Users At One Time

May 21, 2010

I have to update the users based on input value..

here is my code..

[Code]....

using this I can update only one user perfectly but I need to loo update all users based on generic Filedset values?

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MVC :: Update Multiple Users At A Time?

May 21, 2010

I have to update the users based on input value..

here is my code..

<fieldset>
<legend>StudnetInfo</legend>

here i have two textboxes and two dropdown list boxes.. this is the fiedlset user is going to enter their information..

</fieldset>

on the same page i have couple of other Fieldset with there studentInfo with twotextboxes and two dropdownlistboxes smililarly above Fieldset..this data dynamically generated from database for each users.

so all here my intension is insted of updating each and every Fieldset i made one generic fieldset to update all other Fieldsets information

on the Generic view I have this BeginForm

<% using (Html.BeginForm("Update", "home", FormMethod.Post,
new { @id="studentid"}))
{ %>

my JsonResult is

public JsonResult Update(StudentBE e)
{
try
{
var UStatus = Generic.UpdateStudent(e.student,"","");
return Json(UStatus.ToString());
}
catch (Exception ex)
{
return Json(ex.ToString());
}
finally
{
}
}

using this I can update only one user perfectly but I need to loo update all users based on generic Filedset values?

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C# - Error When Multiple Users Access Web App At The Same Time?

Oct 5, 2010

I'm using .Net 2008 and Oracle 10g as my database. The problem I'm getting is after deploying the application in IIS, when multiple users access the same page at a time i'm getting the error. Can't get the output.

Note: Both the users accessing the same page, same menu at a time.

How can I resolve this?

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Mar 6, 2011

How do I keep the pages from time out when users are logged in?

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State Management :: How To Get Total Time Of Users' Session

Apr 1, 2011

I totally have no idea on how to do this. How can I get the time everytime the user use my system. We are using AD account here so we don't have login and log out. All I want is as long as the user browse to my system whether he is working or it or not become away or any, I will record its time and save it in my database then accumulate all the time he spent in my system for admin reporting.

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C# - Force Users To Browse With One Browser Window At A Given Time?

Jan 11, 2011

i have to implement a requirement that's kind of weird for web apps (intranet web app).

after an user login to the app, the user may press Ctrl + N to open the current page in a new window. this sounds perfectly normal except the business requirement is to prevent users from doing this. users must logoff before they can access to the app again with a different browser window/tab.

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Web Forms :: Redirect Users All The Time After They Click The Button?

Jul 22, 2010

So I have a text box and a button, once the user types something in the text box, and then click button, I posted the typed text into a div control on the same page.Now my problem is that, the text box appears to have the typed text, how to resolve this type of issue? I don't want to redirect users all the time after they click the button.

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Architecture :: How To Synchronize The Data With Server

Jun 23, 2010

I have the following scenario:

A server with a number of different clients on different networks. Clients will have to synchronize data with the server.

Just imagine we have a simple data table on the server. The client has the same table schema and works locally but at a certain time of the day it must upload and synchronize with the server.

Was thinking maybe in doing the following. On the client have two extra columns:

Ej:

- synchronized (Boolean, default to false)
- Time it was synchronized (date time).
- Have a wcf service on the server.

Whenever it needs to synchronize it calls the service. The service then updates data on the server. The client will wait for a response which will inform whether the synchronization took place or not. If it did it updates its local table, setting synchronized to true and the time.

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Equivalent Of The Synchronize Block In Java?

Mar 30, 2011

Possible Duplicate: C# version of java's synchronized keyword?

I know that when working with a session in Java, you were always supposed to surround use of the session with a synchronized block incase the user would load your page with two browsers at the same time.

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Web Forms :: Multiple Users Accessing Web Service Or Web Page At Same Time

Dec 14, 2010

i am still relatively new to web development and have been encountering some issues when multiple users click a button at the same time.

i was wondering what could be causing this as i have already removed all static variables realiseing that was a mistake and replaced them with viewstates were needed then sessions when moving across pages

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SQL Server :: Multiple Users Inserting Values In The Same Table At Same Time?

Dec 15, 2010

I have one SP in sql server which takes the data from user and inserts into three tables. My problem is if multiple users call the same SP in same time it throwing error..(I guess one user at a time can access the table and table will be locked, that is why remaning users getting error)how to handle this situation. it is a web application, so at a time so many people can call the same SP.How can many users insert data in the same table in the same time?

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