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• partial classes/partial class file

  - by Ravisha

  In C# .net there is a provision to have two different class files and make them a single class using the keyword partial keyword.this helps it to keep [for ex]UI and logic seperate. of course we can have two classes to achieve this one for UI and other for logic. Can this be achieved in java some how?

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• How can I execute pl/pgsql code without creating a function?

  - by Jeremiah Peschka

  With SQL Server, I can execute code ad hoc T-SQL code with full procedural logic through SQL Server Management Studio, or any other client. I've begun working with PostgreSQL and have run into a bit of a difference in that PGSQL requires any logic to be embedded in a function. Is there a way to execute PL/PGSQL code without creating an executing a function?

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• Does Java Spring 3.0 MVC support annotation/attribute based client side validation like Asp.net MVC

  - by Athens

  In Asp.Net MVC 2.0, at least in the beta, you could decoration your model classes with data annotation attributes and enable client side validation that leverages that criteria defined in your model data annotation attibutes. Is there anything similar for Java Spring MVC 3.0? Is it possible to inject a component into the response pipeline that can inspect the model's annotated properties and render client side validation logic to complement the server side validation logic that is invoked prior to the controller handling the request?

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• doubleton pattern in C++

  - by benjamin button

  I am aware of the singleton pattern in C++. but what is the logic to get two instances of the object? is there any such pattern where we could easily get 2 pattern. for the logic i could think of is that i can change the singleton pattern itself to have two objects created inside the class.this works. but if the requirement grows like if i need only 3 or only 4 what is the deswign pattern that i could think of to qualify such requirement?

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• Huge CPU usage difference for the same .NET 4 program on different machines

  - by Kelvin Li

  I have two servers, one running core i7 920 (8 logic CPUs at 2.8Ghz), the other running Xeon X3430 (4 logic CPUs at 2.4Ghz). For the same .NET 4 application, CPU usage on the first machine is 6%; on the second machine it is 50%! I wonder what makes this huge difference. And how can I diagnose the cause of the issue?

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• Does Apple approve a kind of mark-up language for AppStore?

  - by Eonil

  AppStore now rejects applications made with non-Apple like languages. (with modified contract) However, is it allowed using declarative mark-up language formed with XML? (like XHTML, but different schema) The declarative mark-up is a code too, but not a script or logic code. Just a passive, static data, but forms some layout and part of an application logic.

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• Fast ArgumentNullException with attributes. It is possible?

  - by Fraga

  Hi. Is there any fast way to verify null arguments via attributes or something? Convert this: public void Method(type arg1,type arg2,type arg3) { if (arg1== null) throw new ArgumentNullException("arg1"); if (arg2== null) throw new ArgumentNullException("arg2"); if (arg3== null) throw new ArgumentNullException("arg3"); //Business Logic } Into something like this: [VerifyNullArgument("arg1","arg2","arg3")] public void Method(type arg1,type arg2,type arg3) { //Business Logic } Ideas? thanks guys.

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• How to select visibility of specific worksheet at the opening of Excel using Spreadsheet XML

  - by user211607

  Hi, I am getting spreadsheet xml from a code logic (Flex Grids to spreadsheet xml). I have 3 worksheets (A, B, C) in that spreadsheet xml. I am opening this spreadsheet xml in Excel. I want to view worksheet B when I am opening the spreadhseet xml in Excel. Is there any tag/code, I need to add so that worksheet B will be visible at initial? I can add that code in code logic Thanks ... Atul

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• Help on understanding JS

  - by Anonymous

  I have thos piece of code: Math&&Math.random?Math.floor(Math.random()*10000000000000):Date.getTime(); And as far as i know && is logic operator for AND, so im trying to convert this into PHP and this is where i got: intval(floor(time()/10800000)%10+(rand()?floor(rand()*10000000000000):time())) The problem is that i can't understand the first part Math&& Can anyone help with this one cause i always get negative result, when i should get positive (probably the logic rand-time is not working in my php example)

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• Generic overriding tells me this is the same function. Not agree.

  - by serhio

  base class: Class List(Of T) Function Contains(ByVal value As T) As Boolean derived class: Class Bar : List(Of Exception) ' Exception type as example ' Function Contains(Of U)(ByVal value As U) As Boolean compiler tells me that that two are the same, so I need to declare Overloads/new this second function. But I want use U to differentiate the type (one logic) like NullReferenceException, ArgumentNull Exception, etc. but want to leave the base function(no differentiation by type - other logic) as well.

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• How to "know" of iisreset on a webservice.

  - by Francisco Silva

  I have a webservice where I want to do something when a the application pool ends, so I thought I'd do: Application_End() { // Some logic here } What happens is if I stop the application pool, this logic is executed. On the other hand, if I just call iisreset, it is NOT. So my question is: where should I put my code so that it is executed in both cases?

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• What problems have you solved using constraint programming?

  - by knorv

  I'd like to know about specific problems you - the SO reader - have solved using constraint programming and what constraint logic language you used. Questions: What problems have you used constraint programming to solve? What constraint logic language did you use? I'm looking for first-hand experiences, so please do not answer unless you have that.

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• Javascript unable to pass parameters into a property acting as a function

  - by BOverflow

  Currently in a simplified form, my code looks like this function AddFileParam(file_id, name, value) { uploadcontrol.addFileParam(file_id, name, value) } uploadcontrol = new Upload() function upload() { //logic } upload.prototype.AddFileParam = function(file_id, name, value) { //logic }; The code is giving me an error as it states that addFileParam is not a valid function. This is caused by the instance of the function upload (aka. uploadcontrol). This is only occuring in Firefox/Chrome and not in IE. Any ideas on how to fix this?

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• java array manipulation

  - by sachin

  Hi, I'm a beginner in java. I want the logic of the small program. I have two arrays array = {a1,a2,a3,a4,a5,,,,,,,,,an} and array2 = {b1,b2,b3,b4,,,,,,,,,,,bn} I want string as: a1b1,a2a3b2b3,a4a5a6b4b5b6,..........an Please tell me what will be the logic.

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• DataSet v/s Database

  - by Hemanshu Bhojak

  While designing applications it is a very good practice to have all the business logic in one place. So why then we sometimes have the business logic in stored procs? Can we fetch all data from the DB and store it in a DataSet and then process it? What would be the performance of the app in this scenario?

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• How to call a javascript function from a servlet?

  - by sunnyj

  I submit a (jsp) form to a Servlet A. Then I handle some logic which would make the submission either a success or a failure. I use jquery's ajaxForm() function to re-direct the user to a different jsp after the Servlet logic is executed. But before this redirection happens I need to show a javascript notification showing whether the submission was successful or not. Can someone tell me how can I do this?

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• How to programmatically logout in acegi plugin in Grails?

  - by firnnauriel

  Is there a similar logic for logout using this login code: // login account def autht = new AuthToken(username, password) def authtoken = daoAuthenticationProvider.authenticate(autht) SecurityContextHolder.context.authentication = authtoken I checked LogoutController and this is the only logic for logout: redirect(uri: '/j_spring_security_logout') Any idea? Thanks

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• How do I use Entity Framework in a CLR stored procedure?

  - by Ivan

  I am looking forward to move all the logic (which is implemented as manipulating Entity Framework 4 objects) to a server side. It looks going to be simple (thanks to the application structure) and beneficial (as all I have is one oldy laptop as a client and one tough server which runs SQL Server 2008, and building a separate service for the logic can just introduce more latency if compared to doing it inside the database). So how do I correctly use Entities Framework inside a CLR stored procedure and make it using a host-server-provided SqlContext?

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• How to distinguish user vs programmatic changes in WinForms CheckBox?

  - by cs31415

  I have logic on a CheckBox's OnCheckedChanged event that fires on form load as well as when user changes check state. I want the logic to only execute upon user action. Is there a slick way of detecting user vs programmatic change that doesn't rely on setting/checking user variables?

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• Is OOP based on any branch of mathematics?

  - by ektrules

  I know relational databases are based on set-theory, functional programming is based on lambda calculus, logic programming is based on logic (of course :)), and now that I think of it; I'm not sure if imperative and generic programming is based on any particular branch of mathematics either.

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• how to bind gridview through linq

  - by Manoj Wadhwani

  I am using linq to sql Currently i am binding gridviw through linq which query written in business logic call . i have extract record through query in business logic class and i want to bind that particular data to gridviw and return data . how to retrun data which type is array. code is mention below: CMSBusiness.DataClasses1DataContext db = new DataClasses1DataContext(); var cate = from p in db.categoryTables select new { categoryId=p.categoryId, categoryName=p.categoryName, categoryDesc=p.categoryDesc }; how to return value and bind gridview , Please suggest

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• Responding to preference updates in Android

  - by hgpc

  I am calling a PreferenceActivity from another activity and then updating the application state (ie: changing the font size) on onActivityResult, based on the preference changes. I was thinking it would be better to put the state update logic in the PreferenceActivity. That way I don't have the duplicate the logic in each activity that calls the PreferenceActivity. What's the best or correct way to do this?

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• why no += operator for vectors in stl

  - by Akshay Bhat

  I am curious? What high fundu logic goes behind not implementing: result+=vector1; where both result and vector1 are stl vectors. Note: i know how to implement that bit, but i need to know what logic, the sages who designed STL were using when they chose not to implement this feature?

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• How does MediaWiki calculate the file path to an image?

  - by Gillian

  Hi All, I'm just installing MediaWiki (loving it). I'm lookin at this for adding images. I can se the logic of [[File:MediaWiki:Image sample|50px]] but where so I set the filepath for "File" (nothing obvious in LocalSettings.php) ... or is there some other logic at work? I'd appreciate any help Thanks

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• Doctrine: Keep 'Timestampable' behavior when using stored procedures?

  - by ropstah

  I have complex logic which is not possible (too slow) to run through PHP with Doctrine, so I need to create a stored procedure for this. The logic also includes inserting/updating records in a table using the Timestampable behavior. How do I preserve this behavior in the stored procedure?

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