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  • how do i know how many clients are calling my WCF service function

    - by ZhengZhiren
    i am writing a program to test WCF service performance in high concurrency circumstance. On client side, i start many threads to call a WCF service function which returns a long list of data object. On server side, in that function called by my client, i need to know the number of clients calling the function. For doing that, i set a counter variable. In the beginning of the function, i add the counter by 1, but how can i decrease it after the funtion has returned the result? int clientCount=0; public DataObject[] GetData() { Interlocked.Increment(ref clientCount); List<DataObject> result = MockDb.GetData(); return result.ToArray(); Interlocked.Decrement(ref clientCount); //can't run to here... } i have seen a way in c++. Create a new class named counter. In the constructor of the counter class, increase the variable. And decrease it in the destructor. In the function, make a counter object so that its constructor will be called. And after the function returns, its destructor will be called. Like this: class counter { public: counter(){++clientCount; /* not simply like this, need to be atomic*/} ~counter(){--clientCount; /* not simply like this, need to be atomic*/} }; ... myfunction() { counter c; //do something return something; } In c# i think i can do so with the following codes, but not for sure. public class Service1 : IService1 { static int clientCount = 0; private class ClientCounter : IDisposable { public ClientCounter() { Interlocked.Increment(ref clientCount); } public void Dispose() { Interlocked.Decrement(ref clientCount); } } public DataObject[] GetData() { using (ClientCounter counter = new ClientCounter()) { List<DataObject> result = MockDb.GetData(); return result.ToArray(); } } } i write a counter class implement the IDisposable interface. And put my function codes into a using block. But it seems that it doesn't work so good. No matter how many threads i start, the clientCount variable is up to 3. Any advise would be appreciated.

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  • Is there a method to include CSS background images in print?

    - by jitendra
    Is there a method to include CSS background images in print? If i use image replace techniques for (which is considered as a best practice) Logo then logo doesn't come in print. and many places in site CSS background is saving bandwidth and my time both. but client is asking to include many things in print also. What should i do?

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  • How to make a direct connection in DotNet?

    - by Kovu
    Hi, I will develope a programm that: connect 2 PCs 1 will be server, 1 will be client Language C#.net 2.0 like a chat Con somepne give me a start-howto or something I can read, how I can connect 2 PCs aand send text messages to each other?

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  • How to share asp.net Session into WCF service

    - by Throjen
    Im using asp.net website with WCF service, having wsHttpBinding,Aspnet compatibility enabled, specified as Sessionmode -allowed, service behavior- isinitiated and client session cookie enabled. Its looking like Asp.Net session object and WCF Session( HTTPContext.Current.Session) work independently. How can I share Asp.net Session value to WCF Session and vise versa.

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  • What's best Drupal deployment strategy?

    - by Horace Ho
    I am working on my first Drupal project on XAMPP in my MacBook. It's a prototype and receives positive feedback from my client. I am going to deploy the project on a Linux VPS two weeks later. Is there a better way than 're-do'ing everything on the server from scratch? install Drupal download modules (CCK, Views, Date, Calendar) create the Contents ... Thanks

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  • Excel embedded in a php page

    - by Brian
    I have a client who wants to be able to embed an Excel document (one that is currently sitting on the same server as the HTML document) like how you would embed a Flash app on a page. I'm correct in assuming this is not possible, right? Please confirm/deny so we can hopefully move on from this because he seems to think this is possible. We are on a LAMP setup so no .NET tricks, unfortunately.

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  • parsing email text reply/forward

    - by Theofanis Pantelides
    Hi, I am creating a web based email client using c# asp.net. What is confusing is that various email clients seem to add the original text in alot of different ways when replying by email. What I was wondering is that, if there is some sort of standardized way, to disambiguate this process? Thank you -Theo

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  • Whats the best way to send multiple variables in a query string within a URL

    - by Andy
    I have a client who is wanting to create a link which contains product codes so that his customers hit a page with just those products displayed in an attempt to increase conversion rates from affilliate sites. My question is whats the best way to send these multiple products in a single URL For example: http://www.mydomain.co.uk/bespoke-list.php?catNo=234-324-232-343 Obviously then the site would grab the codes from the string and display them... We're going to be using PHP! Thanks in advance.

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  • Get Xml Data Cross-Domain with JQuery

    - by Dänu
    Hey guys, is there a way to load XML Data Cross-Domain with JQuery (= client side)? $.get('http://otherdomain.com/data.xml', function(xml) { } The above doesn't work - do I have to rely on JSONP, or is there a way to load XML?

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  • http transfer file from server to server

    - by qualle
    Hi, with html forms we can upload a file from a client to a server with enctype="multipart/form-data", input type="file" and so on. Is there a way to have a file already ON the server and transfer it to another server the same way? Thanks for hints.

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  • Where can I find good ajax support in Java/Python ?

    - by HJ-INCPP
    Hello, I want a framework (or anything) that helps me make rich client guis. I know my server-side, but I don't like programming in ajax, javascript, css etc. Something that wraps the ajax code in some objects/methods with clean syntax, would do the trick. I want to write code in java instead of defining css and html tags. Does Java Spring, JSF, Django support this ? Languages: Java, Python Thank you

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  • How to make xml file from php and mysql

    - by Mirage
    My fellow friend is building site in flash and he uses xml files to access data in Flash. I want to build editable cms so that client can edit stuff. Now i don't' have any experience with XML. I know php html mysql very well. SO how can i change those already build xml files using mysql and php. ANy help??

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  • MySQL on Windows 7 multiple connections issue.

    - by Hussain
    I just installed MySql on windows 7 ... issue is i'm unable to get multiple connection to MySql . If I connect with command line than i'm unable to connect through any other client and vice versa. Previously I was using same version of MySql i.e. 5.1 on vista and it was working fine.

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  • Effective Data Validation

    - by John Conde
    What's an effective way to handle data validation, say, from a form submission? Originally I had a bunch of if statements that checked each value and collected invalid values in an array for later retrieval (and listing). // Store errors here $errors = array(); // Hypothetical check if a string is alphanumeric if (!preg_match('/^[a-z\d]+$/i', $fieldvalue)) { $errors[$fieldname] = 'Please only use letters and numbers for your street address'; } // etc... What I did next was create a class that handles various data validation scenarios and store the results in an internal array. After data validation was complete I would check to see if any errors occurred and handle accordingly: class Validation { private $errorList = array(); public function isAlphaNumeric($string, $field, $msg = '') { if (!preg_match('/^[a-z\d]+$/i', $string)) { $this->errorList[$field] = $msg; } } // more methods here public function creditCard($cardNumber, $field, $msg = '') { // Validate credit card number } // more methods here public function hasErrors() { return count($this->errorList); } } /* Client code */ $validate = new Validation(); $validate->isAlphaNumeric($fieldvalue1, $fieldname1, 'Please only use letters and numbers for your street address'); $validate->creditCard($fieldvalue2, $fieldname2, 'Please enter a valid credit card number'); if ($validate->hasErrors()) { // Handle as appropriate } Naturally it didn't take long before this class became bloated with the virtually unlimited types of data to be validated. What I'm doing now is using decorators to separate the different types of data into their own classes and call them only when needed leaving generic validations (i.e. isAlphaNumeric()) in the base class: class Validation { private $errorList = array(); public function isAlphaNumeric($string, $field, $msg = '') { if (!preg_match('/^[a-z\d]+$/i', $string)) { $this->errorList[$field] = $msg; } } // more generic methods here public function setError($field, $msg = '') { $this->errorList[$field] = $msg; } public function hasErrors() { return count($this->errorList); } } class ValidationCreditCard { protected $validate; public function __construct(Validation $validate) { $this->validate = $validate; } public function creditCard($cardNumber, $field, $msg = '') { // Do validation // ... // if there is an error $this->validate->setError($field, $msg); } // more methods here } /* Client code */ $validate = new Validation(); $validate->isAlphaNumeric($fieldvalue, $fieldname, 'Please only use letters and numbers for your street address'); $validateCC = new ValidationCreditCard($validate); $validateCC->creditCard($fieldvalue2, $fieldname2, 'Please enter a valid credit card number'); if ($validate->hasErrors()) { // Handle as appropriate } Am I on the right track? Or did I just complicate data validation more then I needed to?

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  • how to restrict a web portal to a particular computer?

    - by ZX12R
    I am in the process of creating a Ruby on rails portal This portal requires a lot of data feeding by the site owner's back-office personnel. My client has this problem : the office staff should not be able to access the back office interface from any other than his office computers I have no idea how to achieve this. Is there a method for this? Thanks in advance.

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  • How to convert pdf to utf-8

    - by Apple
    I am trying to upload a pdf file using webservice api. But this api doesnot work for pdf file. it works fine for text file.when i try to upload a pdf file it give error as Client-SOAP-ERROR: Encoding: string '%PDF-1.4 %\xc7...' is not a valid utf-8 string So can we convert this pdf file into utf8 string. i am using php as a scripting language.

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  • Struts:JSON:return multiple objects

    - by cp
    Hello Is it possible to return multiple JSON objects in the request header with Struts1? I am presently returning a single JSON objects, however the need now is to return a second data structure. All the client-side processing works perfectly for the single data structure in the single JSON objects, I really do not want to complicate it by putting two hetrogenous data structures in a single return JSON object. tia.

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  • Auto-resize large images with JavaScript?

    - by Yegor
    I have an application that allows people to post images on each others profiles with bb code. Problem is, some post very large images, which cover other parts of the site when are viewed. How can I scale down images, client-side, so they are no bigger than x by y dimensions?

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  • Can you transport a Javascript object to server and receive it in the same state?

    - by zorglub76
    I'm considering creating a simple remote debugging application for Javascript. Actually, I want to provide an object to Firebug Lite and let it do all the job. So, can I get an object from one page, serialize it, send it to server and then to another browser and finally see the same results in Firebug Lite (on that other client) as I would see on the first browser (with doing "console.dir(obj)")? Is it possible to do?

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  • Asp.net deployment with remote desktop

    - by Efe Kaptan
    Hi, i have a production server that does not have ftp access. Possible way to deploy files is connecting with remote desktop client and send files. As you know this approach is highly hard and time inefficient. Could you please provide me best practices to deploy in a more fast way? Thanks

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