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• How do I add a method to the Form class in Windows Forms?

  - by bhaveshtarkhala

  I want to add a new method in Windows.Forms.Form class.. Please help how to do this if anyone knows..

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• Is using css class always a better idea to get rid of style overriding problems?

  - by metal-gear-solid

  Is using css .class in place of #id always a better idea to get rid of style overriding problems and iimportant? #content ul li a {font-size:10px} #content .demo ul li a {font-size:15px}

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• How should each class in an application retrieve the Spring application context?

  - by Derek Mahar

  How should each class in an application retrieve the Spring application context? Or, stated another way, how many times should an application invoke new ClassPathXmlApplicationContext("applicationContext.xml")?

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• How i can i use the value of a variable from one class in another in objective c?

  - by user337174

  Hi i am fairly new to objective c and have been doing some iphone programming. Is it possible to look up the value of a variable in a different class? Basically what i am doing is running a function that exists in my app delegate from a view controller, but the app delegate needs to use a variable stored in the view controller from which the app delegate function was called. Make sense??? Any help would be grateful. James

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• When I renamed a class I am getting a deserialization error. How to fix it?

  - by Fred F.

  I renamed the class classBattle to Game and not I get "Unable to load type battle.classBattle+udtCartesian required for deserialization." This is the line of code MapSize = (Game.udtCartesian)formatter.Deserialize(fs); How do I fix this? Does this mean I cannot rename classes?

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• Magic methods + Reflection API = can't investigate class properties. Why?

  - by Parth

  If I use magic methods. While using reflection API, I can't investigate class properties.. Why is it so?

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• C#: Do I need to lock a static class when accessing from separate threads?

  - by JimDaniel

  I have a static class with a few methods that just take in a byte array, parses it, and returns a structure. I need to call these methods from many separate threads. Do I need a lock() or some kind of thread-safety within the methods? I can't get my head around it.

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• I need a dictionary-like mapping between characters and other kinds of objects. Which class would be

  - by nullPointerException

  This is in Squeak/Pharo. If I want to have a mapping between Character objects like $a and $b to other kinds of objects, and want to look up those other objects based on the Character, what is the best class to use? Dictionary is an obvious choice, but seems wasteful to be hashing character objects which are basically already numbers. I guess what I want is a kind of array where the character value (number) is used as an index/offset, but I am not sure if this is possible with Unicode.

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• Does anyone has working Delphi 7 code, class or unit to upload Tweets to Twitter ?

  - by Edelcom

  Does any one has succesfully created a unit or Delphi 7 class to upload tweets to the TWitter web site ? I would like to be able to add tweets from within my Delphi program.

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• how to assign dynamically a value in a class propert in PHP?

  - by yanis

  I would like to assign a value in a class property dynamically (that is referring to it using a variable). #Something like: setPropValue($obj, $propName, $value);

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• Is it necessary to check all the field in equals method of model class as i am using JPA ?

  - by Urvish

  Is it necessary to check all the field in equals method of model class as i am using JPA ? please reply....

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• how to make array of class objects using dynamic allocation in c#?

  - by jack22

  hi, i made a class named x; so i want to make array of it using dynamic allocation x [] myobjects = new x(); but it gives me that error Cannot implicitly convert type 'ObjAssig4.x' to 'ObjAssig4.x[]' i know it's dump question but i am a beginner thanks

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• Rails: i would need to load a haml file in a class and render in the caller

  - by Totty

  I have this: app/modules/grid_module.rb app/modules/grid.html.haml then in my view: app/views/layouts/default.html.haml I want to make a new instance of the grid_module and render it content. Its content is into the grid.html.haml and this file can only use the instance vars set in the grid_module.rb is this possible to do? (the grid name is just an example, it must be more flexible, to load the html.haml file based on the .rb class) the grid_module must has access to models too* like this: User.find_by_id(4) thanks for help

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• Calling a static method on a class known by name?

  - by Palantir

  Hello! Is there any way to obtain this effect in a PHP version prior to 5.3? class A { public static function x() {print 'ok'; } } $className = 'A'; $className::x(); Thanks! Palantir

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• class ProfilePresenter < ActionView::Base | url_for doesn't work. why?

  - by Totty

  class ProfilePresenter < ActionView::Base def initialize super url_for # i got: You have a nil object when you didn't expect it! # The error occurred while evaluating nil.url_for end end url_for doesn't work. why? i make a new instance like this ProfilePresenter.new

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• In java, is there any disadvantage to static methods on a class?

  - by Michael Campbell

  Lets assume that a rule (or rule of thumb, anyway), has been imposed in my coding environment that any method on a class that doesn't use, modify, or otherwise need any instance variables to do its work, be made static. Is there any inherent compile time, runtime, or any other disadvantage to doing this?

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• Best way to save to nsuserdefaults for custom class?

  - by cannyboy

  If I have a custom class Person which has three variables (which are propertized and synthesized): NSString* theName; float* theHeight; int theAge; Person instances are stored in an NSArray 'Group'. There is only one Group. What is the best way of string and loading the Group in NSUserDefaults? (bearing in mind that float and int are not legal for NSUserDefaults)

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• How do I include a file in a class?

  - by 404Error

  Hey, I want to include a file to be accessible to any method/function in a PHP class. The file just contains a base-64 encoded variable. How do I do this? Thanks.

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• How do you make one line bold in a TreeView Class in WPF/C#?

  - by xarzu

  How do you make one line bold in a TreeView Class in WPF/C#? I mean, how do you make just one line in a Tree View bold at runtime?

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• Is there a sorted_vector class, which supports insert() etc.?

  - by Frank

  Often, it is more efficient to use a sorted std::vector instead of a std::set. Does anyone know a library class sorted_vector, which basically has a similar interface to std::set, but inserts elements into the sorted vector (so that there are no duplicates), uses binary search to find elements, etc.? I know it's not hard to write, but probably better not to waste time and use an existing implementation anyway.

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• if action class method throw exception where is the handler and how to get control after that....???

  - by rozer

  If action class method signature have throws statement and in that method any exceoption occurs then how the flow will move. then suppose we need to take contol of flow and want to show our jsp , what will be the steps please help out.....

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• how to I get the class name when I am passing in a genertic in my method?

  - by Blankman

  My method looks like: public string DoObjectProperties<T>(T obj, string text) { } Now from within the method, I need to get the string value of the class name that i pass into the method's 'obj' parameter. So if I pass in the User object, I need the text 'user'. To get the properties I am using: typeof(T).GetProperties() How can I get the classes name?

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• why my test performance class gives me inconsistent results even after proper warm-up?

  - by colinfang

  i made a class which helps me measure time for any methods in Ticks. Basically, it runs testing method 100x, and force GC, then it records time taken for another 100x method runs. x64 release ctrl+f5 VS2012/VS2010 the results are following: 2,914 2,909 2,913 2,909 2,908 2,907 2,909 2,998 2,976 2,855 2,446 2,415 2,435 2,401 2,402 2,402 2,399 2,401 2,401 2,400 2,399 2,400 2,404 2,402 2,401 2,399 2,400 2,402 2,404 2,403 2,401 2,403 2,401 2,400 2,399 2,414 2,405 2,401 2,407 2,399 2,401 2,402 2,401 2,404 2,401 2,404 2,405 2,368 1,577 1,579 1,626 1,578 1,576 1,578 1,577 1,577 1,576 1,578 1,576 1,578 1,577 1,578 1,576 1,578 1,577 1,579 1,585 1,576 1,579 1,577 1,579 1,578 1,579 1,577 1,578 1,577 1,578 1,576 1,578 1,577 1,578 1,599 1,579 1,578 1,582 1,576 1,578 1,576 1,579 1,577 1,578 1,577 1,591 1,577 1,578 1,578 1,576 1,578 1,576 1,578 As you can see there are 3 phases, first is ~2,900, second is ~2,400, then ~1,550 What might be the reason to cause it? the test performance class code follows: public static void RunTests(Func<long> myTest) { const int numTrials = 100; Stopwatch sw = new Stopwatch(); double[] sample = new double[numTrials]; Console.WriteLine("Checksum is {0:N0}", myTest()); sw.Start(); myTest(); sw.Stop(); Console.WriteLine("Estimated time per test is {0:N0} ticks\n", sw.ElapsedTicks); for (int i = 0; i < numTrials; i++) { myTest(); } GC.Collect(); string testName = myTest.Method.Name; Console.WriteLine("----> Starting benchmark {0}\n", myTest.Method.Name); for (int i = 0; i < numTrials; i++) { sw.Restart(); myTest(); sw.Stop(); sample[i] = sw.ElapsedTicks; } double testResult = DataSetAnalysis.Report(sample); for (int j = 0; j < numTrials; j = j + 5) Console.WriteLine("{0,8:N0} {1,8:N0} {2,8:N0} {3,8:N0} {4,8:N0}", sample[j], sample[j + 1], sample[j + 2], sample[j + 3], sample[j + 4]); Console.WriteLine("\n----> End of benchmark"); }

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• Where does code within Script tags go in the resulting AS class?

  - by Hanno Fietz

  I was wondering what happens to the code contained in an <mx:Script> tag. If I define a function tehre, it just becomes a member function of the generated class. But I noticed that it seems OK for the compiler if I just write some (static) method calls there (specifically, I call Font.registerFont()). I feel kind of guilty for doing this, because I have no idea what's really happening and when the code gets executed.

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• First class modules in OCaml 3.12: What kinds of things will they make easier (or possible)?

  - by aneccodeal

  I've heard that "first class modules" are coming in OCaml 3.12. What advantages will they offer? What kids of things will be easier? What problem are they trying to solve? A simple example would suffice.

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