Flash As3 Error Class
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As3 Throw
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As3 Error Codes
| Classes | Examples Classes x PackageTop LevelClasspublic dynamic class ErrorInheritanceError ObjectSubclasses ArgumentError, AugmentedError, AutomationError, CollectionViewError, ComplexCyclicDependencyError, Conflict, ConstraintError, CursorError, DataServiceError, DefinitionError, DRMManagerError, EvalError, ExpressionError, flex error codes ExpressionEvaluationError, ExpressionValidationError, Fault, FormBridgeError, FunctionSequenceError, IllegalOperationError, InvalidCategoryError, InvalidFilterError, InvalidSWFError, IOError, ItemPendingError, MediaError, MemoryError, MessagingError, MetricError, NoDataAvailableError, PersistenceError, PersistenceError, ProxyServiceError, RangeError, ReferenceError, ScriptTimeoutError, SecurityError, SimpleCyclicDependencyError, SortError, SQLError, StackOverflowError, SyncManagerError, SyntaxError, TypeError, UnresolvedConflictsError, URIError, VerifyError, VideoError, VideoErrorLanguage Version:ActionScript 3.0Runtime Versions:AIR 1.0, Flash Player 9, Flash Lite 4 SubmitNo CommentBy clicking Submit, you actionscript try catch accept the Adobe Terms of Use. The Error class contains information about an error that occurred in a script. In developing ActionScript 3.0 applications, when you run your compiled code in the debugger version of a Flash runtime, a dialog box displays exceptions of type Error, or of a subclass, to help you troubleshoot the code. You create an Error object by using the Error constructor function. Typically, you throw a new Error object from within a try code block that is caught by a catch code block. You can also create a subclass of the Error class and throw instances of that subclass. View the examplesMore examplesWorking with the debugger versions of Flash runtimesUsing try..catch..finally statementsCreating custom error classesResponding to error events and statusHandling errors example: CustomErrors applicationLearn moreBasics of error handlingError handling in ActionScript 3.0ActionScript 3.0 error-handling elementsError-handling strategiesComparing the Error classesCore Error classesPublic Properties Hide Inherited Public P
standard Error classes to create your own specialized error classes in ActionScript. There are a number
As3 Try Catch
of reasons to create your own error classes: To identify specific flexnet error errors or groups of errors that are unique to your application. For example, take different actions
Flexlm Error
for errors thrown by your own code, in addition to those errors trapped by a Flash runtime. You can create a subclass of the Error class http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/Error.html to track the new error data type in try..catch blocks. To provide unique error display capabilities for errors generated by your application. For example, you can create a new toString() method that formats your error messages in a certain way. You can also define a lookupErrorString() method that takes an error code and http://help.adobe.com/en_US/as3/dev/WS5b3ccc516d4fbf351e63e3d118a9b90204-7ed0.html retrieves the proper message based on the user’s language preference. A specialized error class must extend the core ActionScript Error class. Here is an example of a specialized AppError class that extends the Error class: public class AppError extends Error { public function AppError(message:String, errorID:int) { super(message, errorID); } } The following shows an example of using AppError in your project: try { throw new AppError("Encountered Custom AppError", 29); } catch (error:AppError) { trace(error.errorID + ": " + error.message) } Note: If you want to override the Error.toString() method in your subclass, give it one ...(rest) parameter. The ECMAScript language specification on which ActionScript 3.0 is based defines the Error.toString() method that way, and ActionScript 3.0 defines it the same way for backward compatibility. Therefore, when you override the Error.toString() method, match the parameters exactly. You do not want to pass any parameters to your toString() method at runtime, because those parameters are ignored. Twitter™ and Faceboo
crashes for users is because of Flash, hence the new plug-in sequestering (i.e. if Flash blows up real good, it'll do so in a way that won't negatively affect the browser). I agree. If you've ever surfed the web using http://jessewarden.com/2009/06/error-handling-in-actionscript-3-dont-make-grenades-or-how-to-not-crash-safari.html the debug Flash Player, Safari 3 and 4 explode all the time. I don't know the true cause, but I do know when it'll happen most often: when you get an error dialogue. These are shown only if you have the http://stackoverflow.com/questions/22300305/flash-as3-error-line-48-1013-the-private-attribute-may-be-used-only-on-class-p debug Flash Player installed, and an error that wasn't "caught" happens. Sometimes hitting the "Continue" button vs. the "Dismiss All" button will work… but not always… BOOM! Â Thank God for History > Reopen All Windows from Last Session. Â Here's how you as3 error can help prevent Flash's bad name from getting worse (that and until Adobe makes it more stable). Introduction I've written about errors in the past, but wanted to write a more recent, basic, and thorough example since now more than ever, I'm seeing errors all over the web with Flash content nowadays. Flash Player 9 and 10 have errors. Â These are like Java's unchecked exceptions. Â There are 2 types of errors: synchronous and asynchronous meaning "immediately happening while your code is flash as3 error running" and "sometime later when our code is chilling". Â Errors occur when your code does something it's not allowed, or can't, do. Â In the past, you couldn't catch these errors nor attempt to recover from them. Â Try/catch did exist in a primitive form in AS2/AS1 but didn't cover all conditions, and sometimes if used would abort entire blocks of code without you knowing where. Â Errors are a feature of the new ActionScript virtual machine in Flash Player 9 and 10, and are thus really good. The best way to prevent errors from getting in your code is a good compiler. Â The Flash CS3/CS4, and the Flex SDK's mxmlc compiler do a very good job of spotting errors before they happen. Â The #1 error most of us faced in AS1 was capitalization; if you mispelled a variable, and attempted to access in your code, it obviously wouldn't work; i.e person.firstName vs. person.firstname; 2 different variables in AS1 (only in the Flash Player 7, 6 was case insensitive). The compiler didn't see it because there was no strong-typing; anything you typed in a dynamic language is valid because the language is… dynamic. Â In ActionScript 2, they mostly fixed this problem, but the #2 problem, null values, were really hard to track down. Â This is when your code attempts to access a property of something, say a MovieClip's x position… but the MovieClip variable is actually null. Â In AS2, things just wouldn't work, and you'd
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