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  • How to start recognizing design patterns as you are programming?

    - by Jon Erickson
    I have general academic knowledge of the various design patterns that are discussed in GoF and Head First Design Patterns, but I have a difficult time applying them to the code that I am writing. A goal for me this year is to be able to recognize design patterns that are emerging from the code that I write. Obviously this comes with experience (I have about 2 years in the field), but my question is how can I jumpstart my ability to recognize design patterns as I am coding, maybe a suggestion as to what patterns are easiest to start applying in client-server applications (in my case mainly c# webforms with ms sql db's, but this could definitely be language agnostic).

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  • How best to pre-install OR pre-load OR cache Java Script library to optimize performance.

    - by Kabeer
    Hello. I am working for an intranet application. Therefore I have some control on the client machines. The Java Script library I am using is somewhat big in size. I would like to pre-install OR pre-load OR cache the Java Script library on each machine (each browser as well) so that it does not travel for each request. I know that browsers do cache a Java Script library for subsequent requests but I would like the library to be cached once so all subsequent requests, sessions and users. What is the best mechanism to achieve this?

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  • Programmatically enable tracing?

    - by fretje
    Is there a way to programmatically enable diagnostic tracing for a WSE web service client? This is how it should be configured using an app.config file: <?xml version="1.0" encoding="utf-8"?> <configuration> <configSections> <section name="microsoft.web.services3" type="Microsoft.Web.Services3.Configuration.WebServicesConfiguration, Microsoft.Web.Services3, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" /> </configSections> <microsoft.web.services3> <diagnostics> <trace enabled="true" input="InputTrace.webinfo" output="OutputTrace.webinfo" /> </diagnostics> </microsoft.web.services3> </configuration> I would like to do this from code. Is this possible?

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  • IDbTransaction Rollback Timeout

    - by Ben
    I am dealing with an interesting situation where I perform many database updates in a single transaction. If these updates fail for any reason, the transaction is rolled-back. IDbTransaction transaction try { transaction = connection.BeginTransaction(); // do lots of updates (where at least one fails) transaction.Commit(); } catch { transaction.Rollback(); // results in a timeout exception } finally { connection.Dispose(); } I believe the above code is generally considered the standard template for performing database updates within a transaction. The issue I am facing is that whilst transaction.Rollback() is being issued to SQL Server, it is also timing out on the client. Is there anyway of distinguishing between a timeout to issue the rollback command and a timeout on that command executing to completion? Thanks in advance, Ben

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  • What are the requirements for HTA files?

    - by SLC
    They seem to open in an internet explorer type window, does anyone know: How long have HTA files been around? Have they been around since Windows 98? Do they rely on Internet Explorer being installed, and/or a certain version of it? If you choose another browser on the browser selection screen update for Windows 7, will HTA files still work? Do HTA files open on other browsers? Are HTA files windows-only? There is a huge lack of documentation on google about HTA files, so it's tricky to work out. I need to present the client with a list of minimum requirements to ensure our HTA content CD will work.

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  • PHP and Django: Nginx, FastCGI and Green Unicorn?

    - by littlejim84
    I'm curious... I'm looking to have a really efficient setup for my slice for a client. I'm not an expert with servers and so am looking for good solid resources to help me set this up... It's been recommended to me that using FastCGI for PHP, Green Unicorn (gunicorn) for Django and Nginx for media is a good combination to have PHP and Django running on the same slice/server. This is needed due to have a main Django website and admin, but also to have a PHP forum on there too. Could anyone push me to some useful resources that would help me set this up on my slice? Or at least, any views or comments on this particular setup?

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  • How do I use PowerShell background jobs which require windows authentication

    - by Scott Weinstein
    I'm trying to run some funtions in the background of a PoSh script. The job never completes, but works fine when called normall. I've narrowed the problem down to the following line: This line works fine: $ws = New-WebServiceProxy "http://host/Service?wsdl" -UseDefaultCredential but this line blocks forever start-job { New-WebServiceProxy "same url" -UseDefaultCredential } ` | wait-job | Receive-Job Some details: the service is local, and requires windows authentication. Client is XP & server 2003. Why? How do get it to work?

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  • SQL Self Join Query Help

    - by hdoe123
    Hi All, I'm trying to work out a query that self join itself on a table using the eventnumber. I've never done a self join before. What i'm trying to query is when a client has started off in a city which is chester to see what city they moved to. But I dont want to be able to see if they started off in another city. I would also like be only see the move once (So i'd only like to see if they went from chester to london rather then chester to london to wales) The StartTimeDate is the same EndDateTime if they moved to another city. Data example as follows if they started off in the city chester :- clientid EventNumber City StartDateTime EndDateTime 1 1 Chester 10/03/2009 11/04/2010 13:00 1 1 Liverpool 11/04/2010 13:00 30/06/2010 16:00 1 1 Wales 30/07/2010 16:00 the result I would like to see is on the 2nd row - so it only shows me liverpool. Could anyone point in the right direcetion please?

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  • Relying on nhibernate's second level cache vs pushing objects into asp.net session

    - by AhmetC
    I have some big entities which are frequently accessed in the same session. For example, in my application there is a reporting page which consist of dynamically generated chart images. For each chart image on this page, the client makes requests to corresponding controller and the controller generates images using some entities. I can either use asp.net's session dictionary for "caching" those entities or rely on nhibernate's second level cache support with using cached queries for example. What is your opinion? By the way I will use shared hosting, is nhibernate's second level cache hosting friendly? Thanks.

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  • Where Facebook Stands Heading Into 2013

    - by Mike Stiles
    In our last blog, we looked at how Twitter is positioned heading into 2013. Now it’s time to take a similar look at Facebook. 2012, for a time at least, seemed to be the era of Facebook-bashing. Between a far-from-smooth IPO, subsequent stock price declines, and anxiety over privacy, the top social network became a target for comedians, politicians, business journalists, and of course those who were prone to Facebook-bash even in the best of times. But amidst the “this is the end of Facebook” headlines, the company kept experimenting, kept testing, kept innovating, and pressing forward, committed as always to the user experience, while concurrently addressing monetization with greater urgency. Facebook enters 2013 with over 1 billion users around the world. Usage grew 41% in Brazil, Russia, Japan, South Korea and India in 2012. In the Middle East and North Africa, an average 21 new signups happen per minute. Engagement and time spent on the site would impress the harshest of critics. Facebook, while not bulletproof, has become such an integrated daily force in users’ lives, it’s getting hard to imagine any future mass rejection. You want to see a company recognizing weaknesses and shoring them up. Mobile was a weakness in 2012 as Facebook was one of many caught by surprise at the speed of user migration to mobile. But new mobile interfaces, better mobile ads, speed upgrades, standalone Messenger and Pages mobile apps, and the big dollar acquisition of Instagram, were a few indicators Facebook won’t play catch-up any more than it has to. As a user, the cool thing about Facebook is, it knows you. The uncool thing about Facebook is, it knows you. The company’s walking a delicate line between the public’s competing desires for customized experiences and privacy. While the company’s working to make privacy options clearer and easier, Facebook’s Paul Adams says data aggregation can move from acting on what a user is engaging with at the moment to a more holistic view of what they’re likely to want at any given time. To help learn about you, there’s Open Graph. Embedded through diverse partnerships, the idea is to surface what you’re doing and what you care about, and help you discover things via your friends’ activities. Facebook’s Director of Engineering, Mike Vernal, says building mobile social apps connected to Facebook in such ways is the next wave of big innovation. Expect to see that fostered in 2013. The Facebook site experience is always evolving. Some users like that about Facebook, others can’t wait to complain about it…on Facebook. The Facebook focal point, the News Feed, is not sacred and is seeing plenty of experimentation with the insertion of modules. From upcoming concerts, events, suggested Pages you might like, to aggregated “most shared” content from social reader apps, plenty could start popping up between those pictures of what your friends had for lunch.  As for which friends’ lunches you see, that’s a function of the mythic EdgeRank…which is also tinkered with. When Facebook changed it in September, Page admins saw reach go down and the high anxiety set in quickly. Engagement, however, held steady. The adjustment was about relevancy over reach. (And oh yeah, reach was something that could be charged for). Facebook wants users to see what they’re most likely to like, based on past usage and interactions. Adding to the “cream must rise to the top” philosophy, they’re now even trying out ordering post comments based on the engagement the comments get. Boy, it’s getting competitive out there for a social engager. Facebook has to make $$$. To do that, they must offer attractive vehicles to marketers. There are a myriad of ad units. But a key Facebook marketing concept is the Sponsored Story. It’s key because it encourages content that’s good, relevant, and performs well organically. If it is, marketing dollars can amplify it and extend its reach. Brands can expect the rollout of a search product and an ad network. That’s a big deal. It takes, as Open Graph does, the power of Facebook’s user data and carries it beyond the Facebook environment into the digital world at large. No one could target like Facebook can, and some analysts think it could double their roughly $5 billion revenue stream. As every potential revenue nook and cranny is explored, there are the users themselves. In addition to Gifts, Facebook thinks users might pay a few bucks to promote their own posts so more of their friends will see them. There’s also word classifieds could be purchased in News Feeds, though they won’t be called classifieds. And that’s where Facebook stands; a wildly popular destination, a part of our culture, with ever increasing functionalities, the biggest of big data, revenue strategies that appeal to marketers without souring the user experience, new challenges as a now public company, ongoing privacy concerns, and innovations that carry Facebook far beyond its own borders. Anyone care to write a “this is the end of Facebook” headline? @mikestilesPhoto via stock.schng

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  • Javascipt: Get mouse position relative to parent element

    - by Peterim
    Is there any way to get mouse position relative to it's parent element? Let's say I have a structure: <div id="parent"> <span class="dot"></span> </div> When I bring my mouse over span element I need to get its position relative to its parent element (<div id="parent">). PageX/ClientX give me position relative to page/client area, so it's not working for me. Any suggestions are greatly appreciated. Thank you.

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  • ClickOnce: How do I pass a querystring value to my app *through the installer*?

    - by Timothy Khouri
    My company currently builds separate MSI's for all of our clients, even though the app is 100% the same across the board (with a single exception, an ID in the app.config). I would like to show them that we can publish in once place with ClickOnce, and simply add a query string parameter for each client's installer. Example: http://mysite.com/setup.exe?ID=1234-56-7890 The issue that I'm having is that the above ("ID=1234...") is not being passed along to the "myapplication.application". What is happening instead is, the app is being installed successfully, and it is running the first time with an activation context, but the "ActivationUri" does not contain any query string values. Is there a way to pass query string values FROM THE INSTALLER URL to the application's launch URL? If so, how?

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  • How to get ID of EditorFor with nested viewmodels in asp.net mvc 2

    - by Luke
    So I have two nested view models, CreditCard - BillAddress. I have a view, "EditBilling", that has EditorFor(CreditCard). The CreditCard EditorTemplate has EditorFor(BillAddress), and the BillAddress EditorTemplate has EditorFor(BillState). The end result is a select list with id "CreditCard_BillAddress_BillState". I need to reference this in javascript, thus need to know the ID. In other situations, with non-nested ViewModels, I have used the following code: $('#<%= ViewData.ModelMetadata.PropertyName %>_BillState') The problem here is that the ModelMetadata.PropertyName property is only aware of the current property, not the parent(s). So I end up with the following: $('#BillAddress_BillState') How does one go about getting the client ID of nested strongly typed helpers? Thanks in advance.

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  • Agile Development Requires Agile Support

    - by Matt Watson
    Agile developmentAgile development has become the standard methodology for application development. The days of long term planning with giant Gantt waterfall charts and detailed requirements is fading away. For years the product planning process frustrated product owners and businesses because no matter the plan, nothing ever went to plan. Agile development throws the detailed planning out the window and instead focuses on giving developers some basic requirements and pointing them in the right direction. Constant collaboration via quick iterations with the end users, product owners, and the development team helps ensure the project is done correctly.  The various agile development methodologies have helped greatly with creating products faster, but not without causing new problems. Complicated application deployments now occur weekly or monthly. Most of the products are web-based and deployed as a software service model. System performance and availability of these apps becomes mission critical. This is all much different from the old process of mailing new releases of client-server apps on CD once per quarter or year.The steady stream of new products and product enhancements puts a lot of pressure on IT operations to keep up with the software deployments and adding infrastructure capacity. The problem is most operations teams still move slowly thanks to change orders, documentation, procedures, testing and other processes. Operations can slow the process down and push back on the development team in some organizations. The DevOps movement is trying to solve some of these problems by integrating the development and operations teams more together. Rapid change introduces new problemsThe rapid product change ultimately creates some application problems along the way. Higher rates of change increase the likelihood of new application defects. Delivering applications as a software service also means that scalability of applications is critical. Development teams struggle to keep up with application defects and scalability concerns in their applications. Fixing application problems is a never ending job for agile development teams. Fixing problems before your customers do and fixing them quickly is critical. Most companies really struggle with this due to the divide between the development and operations groups. Fixing application problems typically requires querying databases, looking at log files, reviewing config files, reviewing error logs and other similar tasks. It becomes difficult to work on new features when your lead developers are working on defects from the last product version. Developers need more visibilityThe problem is most developers are not given access to see server and application information in the production environments. The operations team doesn’t trust giving all the developers the keys to the kingdom to log in to production and poke around the servers. The challenge is either give them no access, or potentially too much access. Those with access can still waste time figuring out the location of the application and how to connect to it over VPN. In addition, reproducing problems in test environments takes too much time and isn't always possible. System administrators spend a lot of time helping developers track down server information. Most companies give key developers access to all of the production resources so they can help resolve application defects. The problem is only those key people have access and they become a bottleneck. They end up spending 25-50% of their time on a daily basis trying to solve application issues because they are the only ones with access. These key employees’ time is best spent on strategic new projects, not addressing application defects. This job should fall to entry level developers, provided they have access to all the information they need to troubleshoot the problems.The solution to agile application support is giving all the developers limited access to the production environment and all the server information they need to see. Some companies create their own solutions internally to collect log files, centralize errors or other things to address the problem. Some developers even have access to server monitoring or other tools. But they key is giving them access to everything they need so they can see the full picture and giving access to the whole team. Giving access to everyone scales up the application support team and creates collaboration around providing improved application support.Stackify enables agile application supportStackify has created a solution that can give all developers a secure and read only view of the entire production server environment without console or remote desktop access.They provide a web application that provides real time visibility to the important information that developers need to see. An application centric view enables them to see all of their apps across multiple datacenters and environments. They don’t need to know where the application is deployed, just the name of the application to find it and dig in to see more. All your developers can see server health, application health, log files, config files, windows event viewer, deployment history, application notes, and much more. They can receive email and text alerts when problems arise and even safely query your production databases.Stackify enables companies that do agile development to scale up their application support team by getting more team members involved. The lead developers can spend more time on new projects. Application issues can be fixed quicker than ever. Operations can spend less time helping developers collect server information. Agile application support starts with Stackify. Visit Stackify.com to learn more.

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  • Practices for Foreground/Background threads in .NET

    - by Andrei Taptunov
    I work with in-house legacy communication framework which exposes some high level abstractions. These abstractions are wrappers with some logic around .NET threads. When I looked at code I've noticed that some abstractions are wrappers around foreground threads while others are wrappers around background threads. The sad thing is that I don't see any logic why in some cases foreground threads are used and background in other cases. Are there any guidelines or patterns & practices when it's better to choose one over another on server side and client side (I believe there should be some difference)?

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  • Background search for changes in TFS source control

    - by qntmfred
    SourceGear Vault's client app has the ability to background search for changes. This is very useful because at any time I can take a quick peek and see what changes my team members have checked in and that I need to get latest on. This is also helpful for previewing any merges that might be necessary. And on a day to day basis, it helps me get a sense of what parts of the codebase are seeing the most churn. Is there a way to get this same functionality with Team Foundation Server, either with native features or a plugin? I know there is a Compare feature, but it takes way too long to be useful. Unless it could periodically refresh itself like Vault does, but I haven't found a way to do that. Anything new with Visual Studio 2010?

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  • Wordpress, PodCMS and Search

    - by Vian Esterhuizen
    Hey guys, I have a WordPress site for a client. He owns a video store, and I made a site for him to update the list of movies, usually just the "new this week" movies. The Pod has a field where you insert the release date. 2010-04-20 Then there is a Pod page/template combo that calls the movies with a certain release date like this: $date = pods_url_variable('last'); He then just creates a blank WP page with the slug 2010-04-20 So when you open that page, the Pod page/template reads that slug and renders a list of the appropriate movies. My problem: I need these to be searchable. Is this possible. I'm also open to suggestions on other ways to go about making this site work. I need it to be as simple as that. Uploads some movies and creates a new page. Then the rest is done automatically. Please and thank you guys

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  • Real time web services

    - by daliz
    Hi everybody, I have a little (maybe the answer could require a book) question about web services and server side programming. But first, a little preamble. Recently we have seen new kind of applications & games using some kind of real-time interaction with a database, or more generally, with other users. I'm talking about shared drawing canvas, games like this , or simple chats, or the Android app "a World of Photo", where in real time you see who is online, to share your photos, etc. Now my question: Are all these apps based on classic TCP client/server architectures or is there a way to make them in a simpler way, like a web platform like LAMP? What I'm asking, in other words is: Can PHP+MySQL (or JSP, or RoR, or any other server language) provide a way to make online users communicate in real time and share data? Is there a way to do that without the ugly and heavy mechanism of temporary tables? Thank you! I hope I've been clear.

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  • Importing contacts into the GAL

    - by mattdell
    I have a list of People and E-Mail addresses that my client would like to be able to download and then import into their GAL (Global Address List) in Outlook. Right now it is in a DataGrid. Several questions... Is that possible? What format do I need to put the list into so that it can be imported? How do I import it? I haven't been able to find out much on the topic, so cheers for any help or guidance!

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  • MQ window to Unix special chars

    - by user171523
    I am using .net client to post mesages to MQ server which is hosted on Unix. It is added some control character before the messages. Like below ^CD The Queue connection is through SSL Table channel connection. The code i am using is MQQueueManager queueManager = new MQQueueManager ; int openOptions = MQC.MQOO_OUTPUT + MQC.MQOO_BIND_NOT_FIXED + MQC.MQOO_FAIL_IF_QUIESCING; MQQueue Queue = queueManager.AccessQueue("TestQueue", openOptions); MQMessage queueMessage = new MQMessage(); queueMessage.WriteUTF(""); MQPutMessageOptions MessageOptions = new MQPutMessageOptions(); Queue.Put(queueMessage, MessageOptions); please let me know what cause this special chars

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  • whmcs emails problem

    - by megatr0n
    I am testing out the order process for a test webhost package I have already setup in whmcs. I have it set to automatically setup product upon first payment. When the order goes completes whmcs sends out only four emails to the new customer: "Order Confirmation", "Customer Invoice", "Invoice Payment Confirmation" and "Welcome". It does not send out a "New Account Information" email, which should contain the login details for cpanel. I can successfully log into the client area but not cPanel. I checked the account from my administrator area and I see where it says active and paid also. I have tried several times to setup a test account to see if it would send the email with the cpanel login but it never sends it, though it sends all others. Reply With Quote

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  • [Java] Form data transition into entity beans to persist them by the server side ORM

    - by cscsaba242
    Hello guys, Is there any good explanation or tutorial which describes the common way how can we create entity beans from the received data of the form ? The main reason of my question the treating the received ids (e.g id of country,city and so forth) which is the way from the id to entity ? Example: ................Client side form username:String countryid:Integer (could be a drop down) ................Server side entities public class UserBean { String username; CountryBean Country; } public class CountryBean { String cityname; Integer id; } ............................................ Maybe the question is dependent of the used technology, but I guess there is a very common way. I would like to comprehend the conventional approach of this problem. (For the sake of the completeness I would like to save the form data (received by Stripes) by JPA) Thanks advance. cscsaba242

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  • how to dynamically add button to SilverLight datagrid

    - by Grayson Mitchell
    I have a datagrid that I want to add a button/s to at runtime. I have managed to do this with the below code: DataGridTemplateColumn templateCol = new DataGridTemplateColumn(); templateCol.CellTemplate = (System.Windows.DataTemplate)XamlReader.Load( @"<DataTemplate xmlns='http://schemas.microsoft.com/client/2007' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'> <Button Content='" + item.Value.Label + @"'/> </DataTemplate>"); _dataGrid.Columns.Add(templateCol); The problem is that I can't work out how to add a click event. I want to add a click event with a parameter corresponding to the row id...

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  • Is it possible to implement any kind of file upload recovery / resumption in a browser?

    - by Pete
    The project is a servlet to which people can upload files via, at present, HTTP POST. This is accompanied by Web page(s) providing a front-end to trigger the upload. We have more or less complete control over the servlet, and the Web pages, but don't want to impose any restrictions on the client beyond being a reasonably modern browser with Javascript. No Java applets etc. Files may potentially be large, and a possible use case is mobile devices on less reliable networks. Some people on the project are demanding the ability to resume an upload if the network connection goes down. I don't think this is possible with plain HTTP and Javascript in a browser, but I'd love to be proved wrong. Any suggestions?

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  • Form submit event problem

    - by developer 2010
    <form id="form1" runat="server" onsubmit="return CheckForm(this)"> <script type="text/javascript" language="javascript"> function CheckForm(frm) { if(CheckEntireForm(frm) == false) return false; } </script> Hello EveryBody Please help me to get solution I've used a javascript function on form's onSubmit event like which validates my page's textboxes etc. NOTE: i am not using asp.net's validation. i have got my own validation classes I've also used a dropdownlist with auto post back set to true in asp.net 2.0 when dropdownlist's selected index is changed it calls form's onsubmit while this did not use to happen in asp.net 1.1 I've used this on 140 pages in my website the worst case will be to call CheckForm(this.form) on my save buttons client click on all the pages. I am looking for a backword compatibility solution which can be applied at a single place like web.config or some class etc. i am using asp.net and javascript

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