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  • Feasibility of using Silverlight for web and windows client with common code base for data intensive

    - by Kabeer
    Hello. Recently in a conversation, someone suggested me to make use of Silverlight if I am targeting a web client and a windows client for the same application. This will cut down my effort for supporting the contrast in both presentation layers. Mine is a product, that will be deployed in enterprises. Both web and windows clients are desirable. With the above context, I have few queries: Is it advisable to adopt the recommended approach and whether this approach is becoming a trend? Besides, some configuration & deployment tweaking, will this significantly reduce effort on the presentation layer? Is there a possibility that my future prospects (for this product) will resist Silverlight footprint? Will I be able to make use of the ASP.Net MVC pattern? Will there be any performance implication for the web client? Will Silverlight support incremental load of controls? If my back-end includes SSRS, will I be able to harness all its front end features with Silverlight? Will I be able to support additional devices with same code base in future? Mine is a very data intensive application from both, data entry and reporting perspective. Is it advisable to use 3rd party controls (like Telerik) for improved user experience and developer productivity? Are their any professional quality open source Silverlight controls (library) available? Further, I seek information of best practices in the context I shared above.

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  • How to invalidate the OutputCache in a webfarm?

    - by Pure.Krome
    Hi folks, i've got a website that uses OutputCache attribute to cache pages. Works great. Now, I'm in the middle of R&D'ing scaling up this site to be in a web farm. Along with the usual suspects for webfarm pain ... I've noticed (pretty quickly/obviously) that the OutputCache from Server_A doesn't invalidate the OutputCache from Server_B .. if a try and invalidate a single server's OutputCache. This makes total sense - how can S_A 'tell' S_B to invalidate when they are physically 2 seperate machines, etc? So - what are our options? Velocity? I understand this will move the caching to a different layer .. which means that the final result (output) will always be required to be determined .. as opposed to the OutputCache whic remembers the final output content (yes, varby gives different versions, etc.. which is totally fine). So even though the poco or business objects are all sync'd, there's still that last rendering effort required (even if it's tiny .. compared to the effort to generate/sync business objects). So yeah .. not sure of the options here and what other people do?

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  • .Net website create directory to remote server access denied

    - by tmfkmoney
    I have a web application that creates directories. The application works fine when creating a directory on the web server, however, it does not work when it tries to create a directory on our remote fileserver. The fileserver and the webserver are in the same domain. I have created a local user in our domain, "DOMAIN\aspnet". The local user is on both servers. I am running my .Net app pool under the domain user. I have also tried using windows impersonate in the web.config to run under the domain user. I have verified that the domain user has full control to the remote directory. In an effort to debug this I have also given the "everyone" full control to the remote directory. In an effort to debug this I have also added the domain user to the administrators group. I have a simple .net test page on the web server to test this. Through the test page I am able to read the directory on the file server and get a list of everything in it. I am not able to upload files or to create directories on the file server. Here's code that works: var path = @"\\fileserver\images\"; var di = new DirectoryInfo(path); foreach (var d in di.GetDirectories()) { Response.Write(d.Name); } Here's code that doesn't work: path = Path.Combine(path, "NewDirectory"); Directory.CreateDirectory(path); Here's the error I'm getting: Access to the path '\fileserver\images\NewDirectory' is denied. I'm pretty stuck on this. Any ideas?

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  • How to test a struts 2.1.x developer?

    - by Jason Pyeron
    We employ test to filter out those who can't. The tests are designed to be very low effort for those who can and too much effort for those who can't. Here is an example for java web application developer on an Oracle project: We only work with contractors who can use the tools we use, to determine if you can use the tools we have devised some very simple tests. Instructions If you are prepared and knowledgeable this will take you about 2-5 minutes. Suggested knowledge and tools: * subversion 1.6 see http://subversion.tigris.org/ or http://cygwin.com/setup.exe * java 1.6 see http://java.sun.com/javase/downloads/index.jsp * oracle >=10g see http://www.oracle.com/technology/software/products/jdev/index.html * j2ee server see http://tomcat.apache.org/download-55.cgi or http://www.jboss.org/jbossas/downloads/ Steps 1. check out svn://statics32.pdinc.us/home/subversion/guest 2. deploy the war file found at trunk/test.war 3. browse to the web application you installed from the war file and answer the one SQL question: How many rows are in the table 'testdata' where column 'value' ends with either an 'A' or an 'a'? The login credentials are in trunk/doc/oracle.txt 4. make a RESULTS HASH by submitting your answer to the form. 5. create a file in tmp/YourUserName.txt and put the RESULTS HASH in it, not the answer. 6. check in your file (don't forget to add the file first). 7. message me with the revision number of your check in. As such I am looking for ideas on how to test for someone to be a struts 2.1 w/ annotations.

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  • When is a good time to start thinking about scaling?

    - by Slokun
    I've been designing a site over the past couple days, and been doing some research into different aspects of scaling a site horizontally. If things go as planned, in a few months (years?) I know I'd need to worry about scaling the site up and out, since the resources it would end up consuming would be huge. So, this got me to thinking, when is the best time to start thinking about, and designing for, scalability? If you start too early on, you could easily over complicate your design, and make it impossible to actually build. You could also get too caught up in the details, the architecture, whatever, and wind up getting nothing done. Also, if you do get it working, but the site never takes off, you may have wasted a good chunk of extra effort. On the other hand, you could be saving yourself a ton of effort down the road. Designing it from the ground up to be big would make it much easier later on to let it grow big, with very little rewriting going on. I know for what I'm working on, I've decided to make at least a few choices now on the side of scaling, but I'm not going to do a complete change of thinking to get it to scale completely. Notably, I've redesigned my database from a conventional relational design to one similar to what was suggested on the Reddit site linked below, and I'm going to give memcache a try. So, the basic question, when is a good time to start thinking or worrying about scaling, and what are some good designs, tips, etc. for when doing so? A couple of things I've been reading, for those who are interested: http://www.codinghorror.com/blog/2009/06/scaling-up-vs-scaling-out-hidden-costs.html http://highscalability.com/blog/2010/5/17/7-lessons-learned-while-building-reddit-to-270-million-page.html http://developer.yahoo.com/performance/rules.html

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  • Where is the Open Source alternative to WPF?

    - by Evan Plaice
    If we've learned anything from HTML/CSS it's that, declarative languages (like XML) work best to describe User Interfaces because: It's easy to build code preprocessors that can template the code effectively. The code is in a well defined well structured (ideally) format so it's easy to parse. The technology to effectively parse or crawl an XML based source file already exists. The UIs scripted code becomes much simpler and easier to understand. It simple enough that designers are able to design the interface themselves. Programmers suck at creating UIs so it should be made easy enough for designers. I recently took a look at the meat of a WPF application (ie. the XAML) and it looks surprisingly familiar to the declarative language style used in HTML. It's blindingly apparent to me that the current state of desktop UI development is largely fractionalized, otherwise there wouldn't be so much duplicated effort in the domain of user interfaces (IE. GTK, XUL, Qt, Winforms, WPF, etc). There are 45 GUI platforms for Python alone It's painfully obvious to me that there should be a general purpose, open source, standardized, platform independent, markup language for designing desktop GUIs. Much like what the W3C made HTML/CSS into. WPF, or more specifically XAML seems like a pretty likely step in the right direction. Why hasn't anyone in the Open Source community (AFAIK) even scratched the surface of this issue. Now that the 'browser wars' are over should we look forward to a future of 'desktop gui wars?' Note: This topic is relatively subjective in the attempt to be 'future-thinking.' I think that desktop GUI development in its current state sucks ((really)hard) and, even though WPF is still in it's infancy, it presents a likely solution to the problem. Has no one in the OS community looked into developing something similar because they don't see the value, or because it's not worth the effort?

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  • Convincing why testing is good

    - by FireAphis
    Hello, In my team of real-time-embedded C/C++ developers, most people don't have any culture of testing their code beyond the casual manual sanity checks. I personally strongly believe in advantages of autonomous automatic tests, but when I try to convince I get some reappearing arguments like: We will spend more time on writing the tests than writing the code. It takes a lot of effort to maintain the tests. Our code is spaghetti; no way we can unit-test it. Our requirement are not sealed – we’ll have to rewrite all the tests every time the requirements are changed. Now, I'd gladly hear any convincing tips and advises, but what I am really looking for are references to researches, articles, books or serious surveys that show (preferably in numbers) how testing is worth the effort. Something like "We in IBM/Microsoft/Google, surveying 3475 active projects, found out that putting 50% more development time into testing decreased by 75% the time spent on fixing bugs" or "after half a year, the time needed to write code with test was only marginally longer than what used to take without tests". Any ideas? P.S.: I'm adding C++ tag too in case someone has a specific experience with convincing this, usually elitist, type of developers :-)

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  • Reverse engineering and redistributing code from .NET Framework

    - by ToxicAvenger
    Once or twice I have been running into the following issue: Classes I want to reuse in my applications (and possibly redistribute) exist in the .NET Framework assemblies, but are marked internal or private. So it is impossible to reuse them directly. One way is to disassemble them, pick the pieces you need, put them in a different namespace, recompile (this can be some effort, but usually works quite well). My question is: Is this legal? Is this only legal for the classes of the Framework which are available as source code anyway? Is it illegal? I think that Microsoft marks them internal or private primarily so that they don't have to support them or can change the interfaces later. But some pieces - be it SharePoint or WCF - are almost impossible to properly extend by only using public classes from the apis. And rewriting everything from scratch generates a huge amount of effort, before you even start solving the problem you intended to solve. This is in my eyes not a "dirty" approach per se. The classes Microsoft ships are obviously well tested, if I reuse them under a different namespace I have "control" over them. If Microsoft changes the original implementation, my code won't be affected (some internals in WCF changed quite a bit with v4). It is not a super-clean approach. I would much prefer Microsoft making several classes public, because there are some nice classes hidden inside the framework.

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  • Suitable web framework for the following scenario

    - by Paralife
    I have the following scenario: I have a view in an Oracle server and all Iwant is to show that view in a web browser, along with an input field or two for basic filtering. No users, no authentication, just this view maybe with a column or two linking to a second page for master detail viewing. The children are just string descriptions of the columns of the master that contain IDs. No inserts or updates. The question is which is the JAVA based web framework of choice that can accomplish the above in the minimum amount of code lines code time(subjective but also kind of objective if someone has expirience with more than one or two frameworks) configuration effort deployment effort and requirements. dependencies and mem footprint Also: 6. Oracle APEX is not an option. 3,4 and 5 are maybe the same in the sense that they are everything except the functionality coding. I want something that I can compile, deploy by just FTPing to the database host, run and forget. (e.g. For the deployment aspect, Hudson way comes in mind (java -jar hudson.war and that's all)). Also: 3,4 have priority over 1 and 2. (Explanation with a rant: I dont mind coding a lot as long as it is application code and not "why the fuck do we still use javascript over http for everything" code) Thanks.

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  • What disk image should I use with VirtualBox, VDI, VMDK, VHD or HDD?

    - by Sorin Sbarnea
    Latest versions of VirtualBox supports several formats for virtual disks, but they forgot to provide a comparison between them. VDI VMDK VHD HDD Now, I am interested about a recommendation or comparison that considers the following: be able to use dynamic sizing be able to have snapshots be able to move my virtual machine to another OS or even another free virtualization solution with minimal effort (probably something that would run fine on Ubuntu). performance

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  • Microsoft DNS :: Review Traffic Data?

    - by BSI Support
    I have primary and secondary (public) DNS servers running Microsoft DNS. Windows 2003. Would like any suggestions on software for DNS log analysis. At the moment, I'm curious to see which domains are being requested, in an effort to clean-up old Registrar-based name server settings (which I do not have access to change, myself.) Any help would be appreciated.

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  • Good Free Ubuntu Server VMWare Image Needed

    - by Yaakov Ellis
    Can anyone recommend a good, free Ubuntu Server VMWare Image (or Virtual Appliance, as they call them)? I have looked on the VMWare VAM and there are literally hundreds to choose from. I am looking for something that can with very minimal effort serve as a development platform for LAMP applications (so it should have all of those installed, plus things like PhpMyAdmin). Bonus points if there is some way to create new Virtual Hosts (for developing and testing new sites) on Apache without having to go digging around conf files and guessing on the sytax.

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  • Installing and using 32-bit software in 64-bit Linux

    - by Isxek
    Is there a way to install and run i386 software packages inside an AMD64 version of Xubuntu (v9.10)? Just to get an idea, how much effort would it require to port it to something usable within the said OS. I imagine it would be a lot. Thanks! If you need more info (specs, etc.) let me know.

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  • Keyboard similar to laptop keyboards for a desktop

    - by Yktula
    I want to use a keyboard that requires minimal effort pushing down with minimal (if any at all) space between keys. I like the new Apple keyboards, but I want something closer to the feel of a laptop keyboard (the keys on the Apple keyboards are still raised up a bit). Are there any that fit this description?

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  • Linux Newbie: SSH or VNC for linux admin tasks

    - by Dirk
    Longtime Windows user, looking to get my feet wet with Linux. Since Windows makes comparatively little use of the command line, I'm naturally more comfortable with GUI tools for remote server administration tasks. However, before i rush out and install a VNC server on my Linux box, I want to get a sense of how many of Linux's various packages actually offer GUI front end. If not many, then it's probably not worth the effort.

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  • Hyper-V Network Boot Legacy Network

    - by Carl
    Hi, I am planning out a Hyper-V R2 Cluster environment. I was wondering if I went to the effort of deploying one of the few methods to network boot from iSCSI inside the guests, whether the legacy network adapter would switch to a synthetic after boot, or whether the connection could be handed to a synthetic network after boot? This is obviously for performance reasons. MS suggests that some emulated devices are capable of switching to synthetic with integration services after boot, but doesn't specifically list all which are capable.

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  • Generic Post Script driver for Windows Vista x64?

    - by Rick
    I have an old HP parallel port printer that is not supported by Vista. No drivers I've found online work with it. As a last ditch effort, I was hoping to find some generic postscript drivers for Vista x64 in the hopes that the printer will accept those commands. Does anyone know where I could come by such drivers?

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  • Is it possible to integrate Computer Associates SiteMinder with SQLServer?

    - by Scott Weinstein
    We have a MS SQL BI stack which the standards group wants us to move to "WebSSO" which is based on Computer Associates SiteMinder/netegrity product. I figure integrating the web component won't be too hard, but we have users which connect to the Database directly - currently using Windows Authentication. Is is possible to itegrate Computer Associates SiteMinder with SQL Server? With SSAS? If so, how much effort is involved?

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  • (Amazon AWS) EBS mount error: Stale NFS file handle

    - by May
    I have an EC2 instance that just went offline (cannot even be pinged) but is still reflected as operational. In an effort to retrieve data stored on an attached EBS, I did a forced detach of the mounted volume, launched a new instance, and tried attaching the EBS volume. However, I keep getting an error - mount: Stale NFS file handle whenever I do so. Did I just lose all my files?

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  • Custom Windows hotkey to refresh browser window

    - by Prez
    I work in a double screen environment where I write code on one screen and preview the results in the other (containing Firefox, Chrome etc.). It would be great if I could somehow make the browser window refresh without manually switching to the browser. So while I write code, I would like to push, for example, Ctrl+Alt+R and the browser window would refresh without any extra effort on my side. Is there any software that could help me to set up such custom hotkey?

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  • Automounting AFP Share For OpenDirectory Users (Mac Lion Server)

    - by davzie
    We're moving all our Mac's from local logins to OpenDirectory logins in an effort to keep everything secure and to also solve issues we have with a Tiger server buggering permissions on an AFP shared drive. To cut it short, I want users to be able to login to their OpenDirectory account and I then want the AFP share point to mount using the credentials they just logged in with. Firstly, is this possible (I assumed it was) and secondly how might I go about doing it? Cheers, Dave

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  • Send HD video over SONET

    - by Fizzy
    In an effort to test our new OC 192 network, we would like to find a way to stream HD video over it for a demonstration. We are looking for a device or combination of devices that connects to HDMI on one side and has a XFP client interface on the other. I understand this is a ridiculous request and we are planning on an "interesting" solution.

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  • Can I uninstall Silverlight? Does any major site still require it? [on hold]

    - by Brennan Stehling
    The last major site using Silverlight was Netflix but there's been an effort to implement Premium Video Extensions for HTML5 on the Mac for Safari. According to Netflix support is coming with OS X Yosemite. (See blog link below) For other platforms it appears Google Chrome also has support for Premium Video Extensions for HTML5 and Netflix will use it. Is there any other reason I might want to keep Silverlight around? http://techblog.netflix.com/2014/06/html5-video-in-safari-on-os-x-yosemite.html

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  • Looking for a tool to expand shortened urls

    - by Rich Seller
    The interwebs seem to be infested with shortened urls (Twitter I'm looking at you). I'm always reluctant to click these as it is a leap into the unknown. Are there any browser plugins or Greasemonkey scripts that will auto-expand the shortened URL or give me a tooltip with the resolved target? I've seen LongUrl.org, which has an API I could use to roll my own, but I'd like to avoid the effort if this is a solved problem.

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  • VMWare Pre-Allocated vs. Growable, which is faster?

    - by tekiegreg
    In an effort to increase speed in my Vmware setup, I was thinking about converting a Windows XP Guest 32 bit I have from growable to pre-allocated, I'm currently running VMWare Workstation 7 with Windows 7 64 bit as the host. Specs: Dual Core CPU, one allocated to guest 4GB of RAM, 2GB to guest HD max capacity is 500GB, 150GB allocated to guest (I have 300GB left and don't mind parting with the space, currently HD is 80GB and converting would obviously add another 70GB of space), HD that guest is running on is separate from Host OS Either that or any other suggestions you have might be appreciated, thanks!

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