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• How to add entity object to adequate entity set with object context in EF?

  - by Levelbit

  I have a problem when I add an entity object with ObjectContext.AddObject method because I can't retrieve that object with LINQ querying my ObjectContext.Person entities. I know that this new added object is stored somewhere, because it is used to update database after SaveChanges method. That's bothers me because I want to update my datagrid DataContext without saving changes unless I really want to do it. It doesn't help if I add the same object to DataContext list myself directly.

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• Standard way to hash an RSA key?

  - by Adam J.R. Erickson

  What's the algorithm for creating hash (sha-1 or MD5) of an RSA public key? Is there a standard way to do this? Hash just the modulus, string addition of both and then take a hash? Is SHA-1 or MD5 usually used? I want to use it to ensure that I got the right key (have the sender send a hash, and I calculate it myself), and log said hash so I always know which exact key I used when I encrypt the payload.

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• How to retrieve forbidden characters for filenames, in Java?

  - by Gnoupi

  There are some restricted characters (and even full filenames, in Windows), for file and directory names. This other question covers them already. Is there a way, in Java, to retrieve this list of forbidden characters, which would be depending on the system (a bit like retrieving the line breaker chars)? Or can I only put the list myself, checking for the system?

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• Use only alpha channel of texture in OpenGL?

  - by Chris

  Hey, I'm trying to draw a constant color to the framebuffer and blend it using the alpha channel from an RGBA texture. I've been looking at glBlendFunc and glBlendColor, but can't seem to figure out a way to ignore the RGB values from the texture. I'm thinking I'll have to pull out the alpha values myself and make a second texture with GL_ALPHA. Is there a better way to do this? Thanks!

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• How to sort a Map<Key, Value> on the values in Java?

  - by Abe

  I am relatively new to Java, and often find that I need to sort a Map on the values. Since the values are not unique, I find myself converting the keySet into an array, and sorting that array through array sort with a custom comparator that sorts on the value associated with the key. Is there an easier way?

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• How do I get a list of the active IP-addresses, MAC-addresses and NetBIOS names on the LAN?

  - by agnul

  How do I get a list of the active IP-addresses, MAC-addresses and NetBIOS names on the LAN? I'd like to get NetBIOS name, IP and MAC addresses for every host on the LAN, preferably not having to walk to every single PC and take note of the stuff myself. How to do that with Windows Script Host/PowerShell/whatever?

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• Books to help self-taught programmers.

  - by RHaguiuda

  As a self-taught programmer I find myself sometimes thinking how to improve my learning skills. Are there any books out there that you recommend, that help a self-taught learning aproach? When I ask about books here, please I`m not reffering about programming books, but something more like metacognition and the process of learning.

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• Maven assembly plugin and adding system dependencies to the classpath

  - by NG

  Hi, I have some dependencies which I am providing myself. The jars are in the resources directory. In my pom they are scoped as system and I include the path to them. However, when I jar things up using the assembly plugin and use <addClasspath>true</addClasspath> It doesn't add the path of the system jars. How can I get them to be included automatically? Thanks

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• Best approach for coding ?

  - by ahmed

  What should or how should I decide the best approach for coding as a smart programmer. I have just started programming last year in VB, and I keep on listening this statement. But I never could find by myself to choose the best approach for coding. When I search for a coding example on internet I find different types of approach to achieve the same target. So help me finding the best approach. (asp.net,vb.net)

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• How to assign ID to TR generated by datalist/datagrid in asp.net

  - by Rajesh Rolen- DotNet Developer

  Please help me.. how can i set ID to tabelrows generated by datagrid/datalist.. i mean.. i want to assign a row id by myself to every row of datalist

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• Parse tree and grammars information

  - by fuzzylogikk

  Do anyone know where to find good online resources with examples how to make grammars and parsetrees? Preferebly introductary materials. Info that is n00b friendly, haven't found anything good with google myself. edit: I'm thinking about theory, not a specific parser software.

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• How can I retrieve the app purchase date in order to expire features after a set period of time?

  - by don-talusfield-com

  Is there an easy way to recover the app purchase date? Or must I save it myself the first time an app is opened?

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• [PHP] Keeping track of file dependencies across multiple files in a medium-size project

  - by Goro

  Hello, My PHP code is split between many files, and often I find myself using code like this this: require_once( "$preIP/functions.php" ); The problem is that I have to keep using this a lot, and sometimes these statements are becoming redundant. What kind of system do yo use/would recommend for keeping track of all the inter-dependencies in all the PHP files?

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• Anticipate factorial overflow

  - by Flavius

  Hi I'm wondering how I could anticipate that the next iteration will generate an integer overflow while calculating the factorial F. Let's say that at each iteration I have an int I and the maximum value is MAX_INT. It sounds like a homework, I know. It's not. It's just me asking myself "stupid" questions.

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• Good JavaScript Books?

  - by jollyjerry

  I find myself using Javascript day to day without a solid understanding of the language. There are some great writeups out there about using specific features of the language, but I'd like a distilled, printed book reference about the language itself. Please list good books that discuss the JavaScript language; not frameworks, usage and quirks.

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• Did anyone create the Java Code Formatter Profile for Eclipse IDE that conforms to the Android Code

  - by yvolk

  Android Code Style Guide defines "Android Code Style Rules". To conform to these rules one have to change quite a number of settings of the Java Code Formatter (Window-Preferences-Java-Formatter) default profile (in Eclipse IDE). Did anyone managed to configure the formatter to follow the "Android Code Style Rules" already? If yes, please export the Formatter profile and publish to be used by community. PS: I've tried to do this myself but I've found that there are too many formatter options available, and most of them are not mentioned in the Code Style Guide :-(

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• MVVM-Light: The target "RunCodeAnalysis" does not exist in the project when i do build??

  - by mark smith

  Hi there, Just built myself a mvvmlight app and if i press f5 TO COMPILE and run all works ok, it displays the wpf window but if i do a BUILD i get an error Error 1 The target "RunCodeAnalysis" does not exist in the project. I am using the visual studio 2010 professional version RTM The only thing i see strange is the target framework which is set to .NET framework 4 client profile Anybody know why this happens??

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• PHP REST Clients

  - by Jamie Rumbelow

  I'm trying to connect to a RESTful web service, but I'm having some troubles, especially when sending data over PUT and DELETE. With cURL, PUT requires a file to send, and DELETE is just weird. I'm perfectly capable of writing a client using PHP's socket support and writing the HTTP headers myself, but I wanted to know whether you guys have ever used or seen a REST client for PHP?

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• Surprise for a programmer on Birthday

  - by penelope

  Help! My boyfriend's birthday is next month. Since he is a programmer, I'd love to make him a cake with the code for "happy birthday" (and perhaps something awesome) written in icing on top. Not being a programmer myself, I have no idea where to begin. Any suggestions would be greatly appreciated!

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• Are there multiline comment delimiters in SQL that are vendor agnostic?

  - by ojblass

  While editing, building up, or cherry picking from SQL statements I can find myself interacting with one of four popular database tools. I have been resorting to single line commenting for DB2 and Informix. I have created macros in vim to make this slightly more efficient but I was wondering if I am working too hard.

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• Is it a good idea to learn JavaScript before learning jQuery?

  - by Xaisoft

  Is it a good idea to learn JavaScript before learning a JavaScript framework library such as jQuery, Prototype, etc.? Sometimes I find myself struggling because I feel I don't know JavaScript as well as I should.

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• Hook Windows Mobile 6.5 phone on/off button

  - by est

  Hi everyone, recently this post inspired me, I want to track my own life, too. I take a look at my cellphone's clock every time when go to sleep or after wake up, so I need some program to hook to my cellphone's on/off button, and log the timestamp when I press it. I am using WM6.5 on a HTC TyTN II. If there is existing software that can do this with few settings and tweaks it would be nice, but I can also write code myself. Any suggestions?

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• How to do test-first development with MVVM

  - by Thorsten79

  How do you build WPF MVVM applications and user controls test-first? I find myself writing ungodly amounts of XAML with DataTemplates before I even get to unit-testing my viewmodels. Should I develop the whole viewmodel system first before even writing XAML for it? Any help appreciated.

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• natural language processing internships

  - by user552127

  Hi All, Pls someone guide me in finding paid Grad internships in Natural Language Processing over the summer. I am really interested in NLP/ML and have taken up the excellent course offered at my school in Fall. I would be glad to work for passionate startups that do actual NLP tasks such as semantic extraction (and not just information retrieval) etc. I have worked with Java and teaching myself Python in all NLP tasks. Thanks, Sanjay

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• About Php development

  - by rahul

  hi actually i m new in prograamming and i have developed two projects one in osdate and other is my own code and i am jyst 6 months older in php as developer i am not happy with my code standard i want to improve that plz anyone can suggest me about standard and how to organised your project before starting ??i know its funny bt i dnt have any senior in my office i have to make myself

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