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• .net Artchitecture that works like - Cache everything, read from cache

  - by Lakhlani Prashant

  Hi I want a sample that does following: Database <- Data Access + Cache <- Business logic <- UI so basically everything you want from database should be accessible from cache, if it's not in cache, underlying data access layer will populate if and return it otherwise returned from cache is there any disadvantage? in what scenerios this could be a good solution

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• Sanity check on this idea for an Image Viewer in a web app

  - by Charlie Flowers

  I have an approach in mind for an image viewer in a web app, and want to get a sanity check and any thoughts you stackoverflowers might have. Here's the whirlwind nutshell summary: I'm working on an ASP.NET MVC application that will run in my company's retail stores. Even though it is a web application, we own the store machines and have control over them. We have a "windows agent" running on the store machine which we can talk to via http post (it is a WCF service, and our web app has permission to talk to it from the browser). One of the web pages needs to be an "image viewer" page with some common things like Rotate & Zoom. Now, there are some WebForms controls that offer Rotate and Zoom. However, they take up server resources and generate a good bit of traffic between the server and the browser. For example, the Rotate function would cause an ajax call to the server, which would then generate a new image written to a .NET Canvas object, which would then be written to a file on the server, which would then be returned from the ajax call and refreshed inside the browser. Normally, that's a pretty good way of doing things. But in our case, we have code running on the store machine that we can communicate with. This leads me to consider the following approach: When the user asks to view an image, we tell our "windows agent" to download it from our image server to the store machine. We then redirect our browser to our image viewer page, which will pull the image from the local file we just wrote to the store machine. When the user clicks "Rotate", we cause JavaScript code in the browser to call our "windows agent" software, asking it to perform the "Rotate" function. The "windows agent" does the rotation using the same kind of imaging control that would formerly have been used on the server, but it does so now on the store machine. Javascript in the browser then refreshes the image on the page to show the newly rotated image. Zoom and similar features would be implemented the same way. This seems to be much more efficient, scalable, and responsive for the end-users. However, I've never heard of anything like it being done, mostly because it's rare to have this combination of a web app plus a "windows agent" on the client machine. What do you think? Feasible? Reasonable? Any pitfalls I overlooked or improvements / suggestions you can see? Has anyone done anything like this who would like to offer the wisdom of experience? Thanks!

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• Starting in DevExpress

  - by LS

  I am looking at integrating DevExpress to a webapp Im doing in asp.net C#. Finding it difficult to get a good article or book on how to begin. any where to find these?

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• Is there a Twitter App Builder?

  - by monocat

  I have a small fun Twitter app idea and I was wondering if there are Twitter app builders such as the ones you can find for iPhone? If there aren't any. Are there good resources of learning how to put a Twitter app together?

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• Has anyone tried Myows to copyright protect your work

  - by Saif Bechan

  Recently I have read about Myows, they say its: "The universal copyright management and protection app for smart creatives" It is used to protect your application from copyrights and more. Do you think this will be a good idea for large application, or are there better ways to achieve such a thing. url: Myows

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• Mutithreading in Win32

  - by Gareth87

  is there any good book/video/web tutorials for multithreading in win32? I only found Addison-Wesley - Multithreading Applications in Win32 (1996) book and might going to order it soon.

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• Do Brainbench certifications carry any weight with employers?

  - by Joshua Carmody

  Back in 2000, I got a bunch of programming certifications from Brainbench. However, they didn't seem to be doing me any good, and they needed to be renewed every year, so I let them lapse. Recently I've been hearing more about Brainbench, and I've been wondering - do these certifications impress potential employers at all, in 2009? What has been your experience?

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• How far should I go with "the opposite of Fitts' Law"?

  - by wrongusername

  After reading Jeff's blog post and being fairly new to GUI programming, I'm wondering what the limits are on applying the "opposite of Fitt's Law." For example, is it a good idea to separate "Yes" and "No" on a dialog screen, or would that conflict with another programming rule? E.g. and

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• ASP.NET small online store, shopping cart

  - by Tyler

  Currently I have a site that is using Google Checkout's mini cart system and I like it a lot, however, I'm wondering if there is a more professional way of doing it, while still keeping it simple. I've looked into an authorize.net account, but I need to find a way to handle the mini shopping cart before heading off to process the order. Are there any good open source mini shopping carts that are not linked with a merchant service?

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• WPF show control in debug mode only

  - by naeron84

  I have some useful wpf buttons to test some functionality. It would be good not to show them in release but in debug indeed. Doing it from code is easy. But I'd prefer a declarative solution.

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• which ruby twitter library/gem to use?

  - by Radek

  there is a list of ruby gems for twitter could anybody recommend me one that is good to start to learn/use? that have some history of development etc etc? I want to the stuff below on my linux box search for keywords and follow autofollow rewteet

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• Javascript source code analysis ( specifically duplication checking )

  - by David

  Partial duplicate of this Notes: I already use JSLint extensively via a tool I wrote that scans in intervals my current project directory for recently updated/created .js files. It's drastically improved productivity for me and I doubt there is anything as good as JSLint for the price (it's free). That said, is there any analysis tool out there that can find repetitive or near-duplicate code blocks, the goal being to make it easier to find opportunities to consolidate large files or small/medium sized projects?

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• custom string format 0,0 with slash or back slash

  - by Mamad R

  i have a WPF TextBox that user can type number in that . now i am searching for a string format that can separate TextBox number each 3 point (like 0,0) but i want separate text with Slash or Back Slash or another character. and we do not know how much point our number has. i am searching for string format not Linq solution or etc . i read Microsoft help but cant find any way . sample = 123456789 == 123/456/789 (good) --- 123,456,789 (bad)

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• Percentage value with GNU Diff

  - by cdated

  What is a good method for using diff to show a percentage difference between two files? Such as if a file has 100 lines and a copy has 15 lines that have been changed the diff-percent would be 15%.

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• default_scope in rails 3

  - by sfusion

  I know named_scope has been changed to scope in rails 3. How do I perform default_scope in rails 3, I've had a good google but found nothing for defaults scopes.

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• Is there an API for calling system scripts/programs?

  - by Zeratul

  Hi, is there something like API built atop the standard ProcessBuilder for calling system programs? I won't argue that scripts can be ported to Java but utilities like arping and netstat are good-to-go in Linux.

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• Clojure open source projects

  - by Alex Baranosky

  Do you know of any good open source projects written in Clojure? (or just ANY at all :)) I'm learning the language and wold like some code to read as I go. Thanks, Alex

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• I would like to create subdomains Dynamically under my domain using asp.net ,C#?

  - by Ramakrishnan

  I would like to create subdomains Dynamically under my domain using asp.net ,C#? I can not find good solution for this. What are the things i should do to complete this. Scenario: 1.user register with site 2.domain name should be: http://username.domain.com Thanks

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• Sparse quadratic program solver

  - by Jacob

  This great SO answer points to a good sparse solver, but I've got constraints on x (for Ax = b) such that each element in x is >=0 an <=N. The first thing which comes to mind is an QP solver for large sparse matrices. Also, A is huge (around 2e6x2e6) but very sparse with <=4 elements per row. Any ideas/recommendations?

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• What is the best trait your manager can have?

  - by Ian Suttle

  We've all had good and bad managers. What's the best trait your manager can have to allow you to be effective in your role and allow you to love your job? For me it's allowing me creative freedom to make decisions.

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• Closure Library with ASP.NET

  - by jarrett

  Google's Closure Library looks like it has a lot of great features, but I'm not seeing any examples of it used with ASP.NET sites. I'm just wondering if anyone has any experience using the two together and what parts. Is is a good or bad experience?

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• throws SecurityException when signing with the default debug keystore

  - by Omer

  I am receiving a SecurityException since yesterday when I launch the service using signature protection level for permission with the default debug keystore. The strange thing is I wasn't receiving this error before yesterday and I didn't make any security related change. On the other hand, my own keystore using for releases is still working good. Related AndroidManifest.xml part: <permission android:name="com.my.app.privateservices" android:protectionLevel="signature" /> <service android:name=".MyService" android:permission="com.my.app.privateservices" />

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• Open Source multi-touch API's?

  - by daft

  I'm looking for a good open source multi-touch API to use in a project we might get. So far I've found PyMT, but haven't really seen any comments on the maturity of that product, so any input in that regard would be much appreciated. I'd also like some other suggestions on API's that might be of interest, since googling have only given so much, and as with PyMT, it is quite difficult finding opinions on the frameworks out there. Many thanks.

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• Replace number in a string using regex or something else

  - by Krishna

  Hi, I am not so good with regex. I am struggling to find a solution for a small functionality. I have a ajax response which returns a string like "Your ticket has been successfully logged. Please follow the link to view details 123432." All I have to do is replace that number 123432 with <a href="blablabla.com?ticket=123432"> using javascript.

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• Where can I find a C#/.NET NFS implementation?

  - by Petoj

  Is there any implementation of the NFS protocol written in C# or a good documentation thats easy to read so I can implement my own.. Both server and Client are needed but the client doesn't have to be C#, there must be some thing out there?

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