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• Solid Principle examples anywhere?

  - by user231465

  We all write code with some patterns even when we dont realise it. I am trying to really understand some of the solid principles and how you apply this principles in the real world. I am struggling with the "D" my understanding on Dependency Inversion I sometimes confuse with Dependency Injection is that as long as you keep things depending on abstraction (IE:interfaces) you are done. Has anybody got a small c# sample that explains it? thanks

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• How to fix button size?

  - by rob

  I am using three buttons along with the list view.These three buttons are added to the layout using the TableRow.The first button takes more space on content, so the other two becomes smaller in size than first one. When the application runs, it doesn't even show the two other buttons. How can I make the size of three buttons equal and display all of them when application runs?

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• What is the best CSS editor available for free

  - by user43838

  Hi everyone, I am looking for a CSS editor that is decent and free to use. I looked at couple but not sure which one to use or even if there is a better one that I am missing out on.

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• Why does Java's hashCode() in String use 31 as a multiplier?

  - by jacobko

  In Java, the hash code for a String object is computed as s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1] using int arithmetic, where s[i] is the ith character of the string, n is the length of the string, and ^ indicates exponentiation. Why is 31 used as a multiplier? I understand that the multiplier should be a relatively large prime number. So why not 29, or 37, or even 97?

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• Does the openssl command line do key strengthening?

  - by chotchki

  If I run the openssl command line in hmac mode (as below), is the key used for the hmac used directly or is it hashed before using it as the key? echo "foo" | openssl dgst -sha256 -binary -hmac "test" | openssl base64 Similarly, when encrypting a file with openssl (as below)is the pass phrase hashed with the salt? (If so how is it done? A pointer to the right source file would be even better.) openssl enc -salt

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• In SQL server, to convert a varchar which have this format (nnn:nn:nn)

  - by user1688917

  I have this varchar format as time accumulation and i want to convert it to an integer to do a SUM and get the total time for a group. The fist part which may be 1, 2, 3, 4 or even five digits represent the accumulation of Hours and then seperated by a colon. then come the second part which is accumulation of minutes and last accumulation of seconds (2 digits each). How to convert this to integer in one query if possile.

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• How are DynamicResources built? Use in contextmenus.

  - by miguel

  Are dynamic resources truly dynamic? If I define a DynamicResource, I realise that an expression is created (where?) that is not translated into a resource until runtime, however, What I do not understans is whether this dynamicresouce, once built, is now "Static" For instance, if I create a context menu via a dynamicresource, are the menuitems which are created at runtime on access then static, even if they are bound? If so, how can i create a dynamic context menu in XAML?

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• matplotlib - write TeX on Qt form

  - by race1

  I'd like to add some TeX text to my Qt form, like label - just text, no graph, no lines, no borders, just TeX. I thought something like this: render TeX to bitmap and then place that bitmap on form, e.g. into QLabel. Or even better - use some backend, add it to form and use something tex_label.print_tex(<tex code>). Seems matplotplot has TeX parsers, but I can't figure out how to use them... Thanks.

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• Sql Server 2008 types in Sql CLR stored procedure

  - by BadEnglish

  I have Table-valued parameters in SQL Server 2008 e.g. CREATE TYPE UserType AS TABLE ( UserID int, UserName nvarchar(100), UserPassword nvarchar(100) ) Can i use this type somehow in my Sql CLR stored procedure? for example as input parameter ?? [SqlProcedure] public static void SomeFunction(/* what type should be here ?? */) { } Will be appreciate even for attention, let alone for any help !

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• How Do I Make a PHP Module with the Vala Programming Language?

  - by Volomike

  This new language called Vala, which is said to be C#-like and supposedly easier than C++ or C, compiles down into C on Linux with the GCC compiler. Sounds great. Now I want to use it to make a PHP module so that slow PHP code can be made in Vala and imported into PHP as a function. How do I accomplish this in Vala? Is it even possible?

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• Trigger events from Firefox browser extension?

  - by Alex

  Hello, I want to trigger events from a firefox extension, specifically click events. I've tried jQuery's .click() as well as the whole: var evt = document.createEvent("HTMLEvents"); evt.initEvent("click", true, false ); toClick[0].dispatchEvent(evt); This is not working for me, and I was wondering if this is even possible? (to trigger events from a firefox extension)? If so, how does one do it?

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• Is it possible to add a attachment to a mail with the mailto function in actionscript 3?

  - by SinneR

  Is it possible to add a attachment to a mail with the mailto function in actionscript 3? Thats the thing, i want to open the default mail program compose window with some data but i also need to add a file as attachment, and that file must be a screen capture of the app. Im doing some research and cant find nothing even close to this, someone have any ideas? All help will be appreciated because im really lost here. Thanks in advance ;)

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• Generated queries contain schema and catalog name

  - by stacker

  I've the same problem as described here In the generated SQL Informix expects catalog:schema.table but what's actually generated is catalog.schema.table which leads to a syntax error. Setting: hibernate.default_catalog= hibernate.default_schema= had no effect. I even removed schema and catalog from the table annotation, this caused a different issues : the query looked like that ..table same for setting catalog and schema to an empty string. Versions seam 2.1.2 Hibernate Annotations 3.3.1.GA.CP01 Hibernate 3.2.4.sp1.cp08 Hibernate EntityManager 3.3.2.GAhibernate Jboss 4.3 (similar to 4.2.3)

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• JQuery: calling ajax on drop element

  - by Lukasz Baran

  $("div.square").droppable({ accept: '.white', drop: function (event, ui) { $to = "#" + $(this).attr('id'); alert(to); $.post( "/Game/AddMove", { from: $from, to: $to, GameID: $("#gameID").val() }); } }); Well it's nor working. So I must ask, is it possible to call AJAX on droping some UI element ? The problem is, it's not even calling an controller,

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• Path managment in Linux programs

  - by petersohn

  I have a newbie Linux programming question. Suppose I have a project that uses Autotools for compiling and deployment, and I have data files that are to be installed in a location like /var/something or /usr/share/something etc., but in Autoconf, I can change these installation paths. How should the program find these files? How does it know where they are actually installed (if anywhere, since the program should work even if not installed, but run from where it was built)?

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• ASP.Net 4.0 Database Created Pages

  - by Tyler

  I want to create asp.net 4.0 dynamic pages loaded from my MS SQL server. Basically, its a list of locations with informations. For example: Location1 would have the page www.site.com/location/location1.aspx Location44 would have the page www.site.com/location/location44.aspx I dont even know where to start with this, url writting maybe?

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• !Contains() of List object doesnt work

  - by Tony

  I am using Contains() to identify something that NOT contain in the list. So something like, if(!list.Contains(MyObject)) { //do something } but, the whole if statment goes to true even though MyObject is already in the list. Anybody what I am doing wrong? Thank you

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• What defines a Business Object

  - by Ardman

  From the title, I believe it to be a straight forward question, but looking into the "world of Business Objects" I can't seem to put my finger on anything solid as to what a Business Object should be. Are there any best practices that I should follow, or even any design patterns? I have found a book, "Expert C# Business Objects", would this be my best starting point to get a better understanding?

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• How to catch this type of exceptions ?

  - by Lukas Šalkauskas

  I'm starting getting tired of this exception. Can't handle it, even so I'm using this: AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException); Still no success, Can anyone explain me, how I should handle it in a nice way. Or how to detect that it have fired this message and close the application, because I'm starting it automatically everytime it closes.

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• SQL server Agent - Not starting - Automatic start enabled

  - by user130561

  SQL server agent is not starting automatically even when it is set to "Automatic". We have a weekend reboot of the server and usually it should come up automatically since it is set to "Automatic". SQL Agent Logs: [298] SQLServer Error: 831, Client unable to establish connection [SQLSTATE 08001] [382] Logon to server '(local)' failed (SubSystemStepHistoryLogger) [165] ODBC Error: 0, Driver's SQLAllocHandle on SQL_HANDLE_ENV failed [SQLSTATE IM004]

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• Running a Job only once Using Quartz

  - by Kaddy

  Is there a way i could run a job only once using Quartz (java). I understand it does not make sense to use Quartz in this case but the thing is i have multiple jobs and they are run multiple times so i am using Quartz. Is this even possible.

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• What is the best programming language for web development and why?

  - by Logan Serman

  I've always used PHP, but recently I've been reading about why it's bad. I love Python, but I don't know how it works with the web. I've never even seen Ruby... what is worth learning? Should I stick to PHP?

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• What are the barriers to understanding pointers and what can be done to overcome them?

  - by David McGraw

  Why are pointers such a leading factor of confusion for many new, and even old, college level students in the C/C++ language? Are there any tools or thought processes that helped you understand how pointers work at the variable, function, and beyond level? What are some good practice things that can be done to bring somebody to the level of, "Ah-hah, I got it," without getting them bogged down in the overall concept? Basically, drill like scenarios.

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• Possible to programmatically open a Spinner in Android app?

  - by johnrock

  If you have a handle to a Spinner object in an Android activity, can you programmatically pop open the spinner options - thereby forcing the user to choose an option even though they did not click on the spinner themselves?

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• How to learn a language that has very little coverage?

  - by bennybdbc

  I recently came across the Kogut language, and was interested by it. However, the only website to gain information from is the sourceforge page that hosts the project. I had no idea how to even attempt to look at the language in more depth. So what I'm asking is, has anyone here learnt a language that doesn't have the thousands of resources that Ruby, Python etc. have? What would be the best method to do so?

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