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• Is arithmetic overflow/underflow generally checked in .Net framework methods?

  - by YWE

  For example, let's use the Add method of the ArrayList class. If I am using the default compiler settings in Visual Studio C# project in which arithmetic overflow is not checked, would ArrayList.Add() throw an OverflowException if I added too many items? Would surrounding the method call with checked or unchecked make any difference? BTW, I would write a test program to determine the answer to this question if I had Visual Studio available to me right now.

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• Java: when to use static methods

  - by KP65

  Hello, I am wondering when to use static methods? Say If i have a class with a few getters and setters, a method or two, and i want those methods only to be invokable on an instance object of the class. Does this mean i should use a static method? e.g Obj x = new Obj(); x.someMethod or Obj.someMethod (is this the static way?) I'm rather confused!

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• Will this static class break in a multi user scenario ?

  - by Perpetualcoder

  Say I make a static class like following with an extension method: public static class MyStaticExtensionClass { private static readonly Dictionary<int, SomeClass> AlgoMgmtDict = new Dictionary<int, SomeClass>(); public static OutputClass ToOutput(this InputClass input) { // clears up the dict // does some kind of transform over the input class // return an OutputClass object } } In a multi user system, will the state management dictionary fail to provide correct values for the transform algorithm? Will a regular class be a better design or shoving the Dictionary inside the method a better design?

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• Using innerHTML.repalce to replace text with img element

  - by Vishal Shah

  I'm writing a script to add extra smileys to the Gmail chat. Its working partially, i'm stuck with the innerHTML.replace method @line 33 If you see, the regex in the replace method is passed using a variable. This is where the script is choking. If i replace the variable with the actual regex, it works fine :|

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• TabRenderer with no visual styles enabled?

  - by DxCK

  I want to draw a custom TabControl with custom functionality. To do this, i inherited the Panel class and overrided OnPaint method to draw with TabRenderer class. The problem is that TabRenderer working only when visual styles enabled (can be checked with TabRenderer.IsSupported), but what should i do if visual styles disabled? In this case, I thought using the ControlPaint class to draw tabs without visual styles, but it has no draw method related to Tabs. I want it basically to behave visually like the regular TabControl.

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• AtomicInteger lazySet and set

  - by Yan Cheng CHEOK

  May I know what is the difference among lazySet and set method for AtomicInteger. javadoc doesn't talk much about lazySet : Eventually sets to the given value. It seems that AtomicInteger will not immediately be set to the desired value, but it will be scheduled to be set in some time. But, what is the practical use of this method? Any example?

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• How can you represent a .NET DataType in a UML Diagram

  - by Blake Blackwell

  I am new to UML diagramming, but I'm trying to learn the ropes. Using a tool such as Visio or AgroUML how would you represent a .NET Datatype in your diagram? Two examples that I would like to do: DataTable List<MyObject> The only method I see right now is creating a class that represents a datatable. As far as representing collections, I can't find any method to do that. Thanks!

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• android Convert phone number in International Format

  - by Arutha

  I'd like to know whether it's possible to have phone numbers converted into international format when a call is outgoing. For instance, if a french user (sorry it's the only format i know i won't make a mistake :-) try to call with the national format : 01.47.12.34.56 then a method will convert it into international format like this : +33.1.47.12.34.56 I've looked into the doc of the PhoneNumberUtils but i don't know if there is a method doing what i want.

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• Something in the likes of IList.IndexOf() but on IEnumerable<T>?

  - by devoured elysium

  Is there any method / extension method on IEnumerable that allows me to find the index of of an object instance in it? Like IndexOf() in IList? indexPosition = myEnumerable.IndexOf() ? Thanks

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• Jython: is there a clean way to implement a Java interfaces with function references?

  - by auramo

  I know that I can implement a Java interface with Jython like this: class MyListener (Listener): def foo(self, event): print(str(event)) Python has first-class functions so that seems like an overkill - especially for interfaces with one method. Is there a way to just pass a lambda or function which implements a single method in an interface instead?

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• Why do we need to use ConvertBack in IValue Converter

  - by Subhen

  Hi, I am not sure Why we need to use I ConvertBack method in IValueConverter. In the Convert method itself we do the conversion and return the updated value to be bound in our control. So in which Scenario we should use Convertback. I know this question is very basic but just wanted to make the fundamentals clear. Thanks a lot for your help and suggestions. Thanks, Subhen

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• Can .NET Task instances go out of scope during run?

  - by Henry Jackson

  If I have the following block of code in a method (using .NET 4 and the Task Parallel Library): var task = new Task(() => DoSomethingLongRunning()); task.Start(); and the method returns, will that task go out of scope and be garbage collected, or will it run to completion? I haven't noticed any issues with GCing, but want to make sure I'm not setting myself up for a race condition with the GC.

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• difference b/w soap web service and webservcie

  - by Praveen Prasad

  i saw that in asp.net .asmx file, we create webservices [webmethod] //method defination here now for soap webservice [webmethod] [SoapHeader(some parameters here)] //method defination here my question is what's the difference b/w both webservcies type and how to choose which service type to choose

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• Sub-viewController doesn't get autorotation notifications, bug?

  - by Shizam

  If I have a view (and its controller) and I override the willAnimateRotationToInterfaceOrientation method so I can respond to autorotation events everything works fine and dandy. Now if I create another viewController and add its view to the first viewController's view via: [firstViewController.view addSubview:secondViewController.view] The secondViewController's willAnimateRotationToInterfaceOrientation method isn't called. What gives? Thanks, Sam

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• Create all directories up to a point?

  - by Stefan Kendall

  I need to be able to build all directories up to and including the directory specified by my File object. For example, suppose I have something like this: File file = new File( "/var/a/b/c/d/" ); But only /var/ exists. I need a method that builds up to d, and I was wondering if there was a method in a java io library somewhere that does this already.

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• Failure/Error: @user = User.create!(@attr)

  - by the_Saint

  I am following railstutorial.org on Chapter 7 and when running tests I get the error User password encryption has_password? method should be true if the passwords match Failure/Error: @user = User.create!(@attr) undefined method password' for #<User:0xa242d18> # ./spec/models/user_spec.rb:105:inblock (3 levels) in ' line 105 of user_spec.rb:105 is @u @user = User.create!(@attr)ser = User.create!(@attr)

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• Converting 'x' value of a CGPoint ivar to NSTimeInterval?

  - by eco_bach

  Hi I have a velocity ivar defined as a CGPoint. I need to somehow extract just the 'x' value of velocity, and then use this to call-send a message to the following method signature -(void) adjustTimer:(NSTimeInterval*)newInterval How do I obtain just the 'x' value of a CGPoint? Do I then need to convert or cast this result before calling my adjustTimer method?

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• Set A Transparent Color

  - by Ngu Soon Hui

  I have a Color, and I have a method that should return a more "transparent" version of that color. I tried the following method: public static Color SetTransparency(int A, Color color) { return Color.FromArgb(A, Color.R, Color.G, Color.B); } but for some reason, no matter what the A is, the returned Color's transparency level just won't change. Any idea?

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• ReSharper conventions for names of event handlers.

  - by Belousov Pavel

  Hello, When I add new event handler for any event, VS creates method like Button_Click. But ReSharper underlines this method as Warning, because all methods should not have any delimeters such as "_". How can I customize rules of ReSharper so that it doesn't underline such methods? Or may be I should rename such methods? Thanks in advance.

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• How would I rspec/test an updated_at field without using sleep() in ruby?

  - by Kamilski81

  How do i write my spec without using the sleep(1.second) method? When I remove the sleep then my tests break because they are returning the same time stamp? I have the following class method: def skip qs = find_or_create_by(user_id: user_id) qs.set_updated_at qs.n_skip += 1 qs.save! end and following spec: qs = skip(user.id) sleep(1.second) qs2 = skip(user.id) qs.should_not be_nil qs2.should_not be_nil (qs.updated_at < qs2.updated_at).should be_true

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• Add string to another string

  - by daemonfire300

  Hi there, I currently encountered a problem: I want to handle adding strings to other strings very efficiently, so I looked up many methods and techniques, and I figured the "fastest" method. But I quite can not understand how it actually works: def method6(): return ''.join([`num` for num in xrange(loop_count)]) From source (Method 6) Especially the ([numfor num in xrange(loop_count)]) confused me totally.

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• JQuery Tablesorter clear table information

  - by conversoid

  I've created a jquery table that from time to time needs to be cleared and the re-populated, my clear method is this: //Clear table content before repopulating values $('#tabela_dash2_maquinas .real-content table tr:gt(0)').remove(); Now i'm trying to use tablesorter to sort a specific column, but my problem is that when I enable the tablesorter: //Initialize tablesorter $("table").tablesorter(); The table clearing method is not working anymore, it just keeps adding the new data with the old data, creating a lot of repeated information. Please help

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• Finding a handle that persists when relaunching parent

  - by cidtek

  I need to interact with 3'rd party applications by knowing the handle of certain text fields, but the hWnd always changes when that window is recreated. Is there any method that would allow me to identify a window and repeatedly be able to access that window (even after it is closed and then reopened) without having the user manually identify the window? I need the user to be able to identify a window with the usual click, drag and release method but only have to do it once and not every time the target window is recreated.

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• Model callback failure in CakePHP

  - by Benedikt R.

  Hi! Can someone confirm a save process misbehaviour in the AppModel for the method beforeSave( )? This method doesn't seem to be executed before saving a data set. I can remember of reading something about a bug in a current version (btw, I am using 1.3.1). Best regards, Beendikt

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• PHP show image if post result equals

  - by user342391

  I have a form that posts to a page. I want to display an image if the value of the item posted equals "paypal". I need to write something that says; if $_POST['method'] equals "paypal" then show paypal.gif if $_POST['method'] equals "mastercard" then show mastercard.gif I hope I made a bit of sense, new to php trying to learn the best I can

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