objective c enum with string values

 

 

 

 

The System.Enum class provides several methods that convert enum values to and from strings. Some particularly useful methods include: GetName. Returns the string name of an enum value. GetNames. I have this enum with String values, which will be used to tell an API method that logs to a server what kind of serverity a message has. Im using Swift 1.2, so enums can be mapped to Objective-C. [ComVisibleAttribute(true)] public static object Parse( Type enumType, string value ).Console.WriteLine("The entries of the Colors enumeration are:") foreach ( string colorName in Enum.GetNames(typeof(Colors))) . CoderGears Blog. String enums in Objective-C | Vandad NP. C programming enumeration.

c - Documenting enum values with doxygen - Stack Overflow. Enumerated data types in C. Programming in c. Objective C. Python. VB.Net.Set array key as string not int? Is it legal to have duplicate enum values in C? Parallel Sort Algorithm. Lambda expression to convert array/List of String to array/List of Integers. string description null if (e is Enum) . Type type e.

GetType() Array values System.Enum.GetValues(type)As you can see, its pretty easy to decorate your enum values with string descriptions. public static string GetDescription(Enum value).This works fine on the property grid but web controls dont seem to use type converters to get string representations of enum values. Lookup enum by string value. What is a typedef enum in Objective-C? Get int value from enum in C. Can you loop through all enum values?(void)methodOne:(NSString )stringValue . [self methodTwo:makeModifier( stringValue)] c, objective-c, node.js, excel, git.The enum can contain INT, BOOL DOUBLE or STRING. The arguments passed to a particular command are not dependant on the enums value. First things first, how to create a string value enum. To do this we need to import the System.

Reflection and System.ComponentModel into the class and to create a new enum as follows: public enum IceCream . My enum consists of the following values: private enum PublishStatusses NotCompleted, Completed, Error I want to be able to output these values in a user friendly way though. I dont need to be able to go from string to value again. If youre familiar with Objective C data types like int and double, you know that you can define variables to hold or return int and double values.You can learn how to write your own Objective C programs with enums in this course. Great article Objective-C enum values. When I started reading and you described using the bitmasking capability of an NSENUM, I was thinking, Im pretty sure thats what NSOPTIONS is for and then you covered that right afterwards. If your enum is declared with another raw value type like obj enum MyOtherEnum: String, you will not be able to use it on Objective-C files. So, no, you cant use a Swift enum in an Objective-C class. Expressions of scalar (numeric, enumerated, BOOL), C string pointer and some C structures (via NSValue) are supportedAlthough enum values are integral, they may not be used directly as boxed literals (this avoids conflicts with future -prefixed Objective-C keywords). Learn to create enum using strings, iterate over all enum constants, getting single enum value and doing reverse lookup to find enum by string value. You should always create enum when you have fixed set of properties with constant values. CoderGears Blog. String enums in Objective-C | Vandad NP. C programming enumeration.c - Documenting enum values with doxygen - Stack Overflow. Enumerated data types in C. Programming in c. There isnt going to be any "elegant solution" for converting it to Objective-C. In C, enums are just glorified integers - unlike in Swift where theyre way more powerful. Youll have to wrap the enum in extra logic to convert an integer value of your enum to a string Enums are nicer than string constants.Again, you must be careful that all of the enumerated values fit within the specified type. NS ENUM and NSOPTIONS are handy additions to the Objective-C development experience, and reaffirm the healthy dialectic between its objective and procedural c enum value to string.Objective-C Programming THE BIG NERD RANCH GUIDE III. Objective-C and Foundation enum This is really a C question, not specific to Objective-C (which is a superset of the C language). Enums in C are represented as integers. So you need to write a function that returns a string given an enum value. The enum bit here isnt part of the objective c class.So ho can the fist project be returning the string value? Is there some setting somewhere which can make this enum return its string value? C. Free Tools. Objective-C and Swift.1) You can use a System.ComponentModel.DescriptionAttribute to assign a different string to the value. See my Enum Utilities[]. Enum values as char array in c [duplicate]. This question already has an answer here: Is there a simple script to convert C enum to string?Is it possible to loop through enum values in Objective-C? | Recommendios - Convert Objective-C enum to Swift String. tring returns the type name instead of the value name for system enums.up vote 0 down vote favorite I am having an issue converting this swift enum to Objective-C : public enum ISO8601Format: String. I want to return string values like below. public enum PropType. All "A", Mature "M". Is this possible at all? Is there any elegent way to return string values using enum? Its important to note that, unlike C or Objective-C enums, Swift enums declared in the above fashion are not equivalent to integers: North is not an alias for 0, and so forth.The type of the raw value, String, is specified after the name of the enum. Enum (enumerated type) is an user-defined type that is used in Objective- C to represent the data that can be stored in one of several predefined values (all of them are int). So you will only have to write out the string values once. This eliminates two of your repetitions. You will still have to write out the case names in the enum declaration, because theres no other way to tell Objective-C the names of the cases. Best solution? Any suggestions? You will need a static char array (or equivalent (like a switch)) somewhere as there is no built in way to convert enum values (which are integers) to a string. Objective-C Grouped String Constants.You can also use the NSEXTENSIBLESTRINGENUM macro when you need to extend and add additional values to your Objective-C typedef constants in Swift define ENUMVALUE(name,assign) name assignVery good macros, you saved a lot of time on my project with this. However I needed to change. define ENUMSTRCMP(name,assign) if (![string isEqualToString:name]) return name The objective of this tutorial is to: Give you some experience using enums, structs and classes. Gain some intuition about when to use them.So, you can specify the type of ColorName as String, and assign a value to each case, like so: enum ColorName: String case black "black" case silver Home. Computers Internet objective c - NSString to enum Value (Objc).I simply define strings for the label and pass the string itself as argument, if the enum value is simply a marker, an option. This is really a C question, not specific to Objective-C (which is a superset of the C language). Enums in C are represented as integers. So you need to write a function that returns a string given an enum value. The string of enum value will be stored through DescriptionAttribute which specifies a description for a property or event. Then when we want to get string, we just access this description and fetch value back. String enums in Objective-C. Note: I have written a newer and better solution to this problem in a new video, which you can watch by clicking here.So if you put a value such as Good for the enumeration item, in fact, the compiler will translate the values of G, o, o and d as their numerical Swift enums can now be exported to Objective-C using the objc attribute. objc enums must declare an integer raw type, and cannot be generic or use associated values. Because Objective-C enums are not namespaced, enum cases are imported into Sometimes you want to use enum with string values, not exact value of enum, but slightly different.public static string GetStringValue(Enum value) . string output null Type type value.GetType() if (stringValues.ContainsKey(value)). Is it possible to loop through enum values in Objective-C?You should still make sure you dont get any symbols or so, but this will sum up all the letters in your string. Create an enum with all the letters. Event though Swift supports string enums they cannot be used in Objective -C, only Int enums are allowed.This was not a perfect solution since I still needed a parallel Objective -C enum to match the Struct values but at least it was a good intermediate bridge with Swift. Tag: objective-c,swift,enums,interop. I have this enum with String values, which will be used to tell an API method that logs to a server what kind of serverity a message has. Enum: An enumeration defines a common type for a group of related values and enables you to work with those values in a type-safe way within your code.property (non atomic, retain) NS string x str end. CoderGears Blog. String enums in Objective-C | Vandad NP. C programming enumeration.c - Documenting enum values with doxygen - Stack Overflow. Enumerated data types in C. Programming in c. My problem is that we use a lot of libraries - including Apples own! - which use annoying public enums with no "value-to-string" method offered.Related Articles. Convert Objective-c enum to Android enum. My problem is that we use a lot of libraries - including Apples own! - which use annoying public enums with no "value-to-string" method offered.parser argparse.ArgumentParser(description"Use libclang to find enums in ". "the specified Objective-C file and emit a ". In Objective-C enums (Enumerated type) define grouped constants for fixed values.enum SomeTypeThatCanHaveStuffStashedInIt case StuffTypeOne(Int, String) case StuffTypeTwo( String) case StuffTypeThree . CoderGears Blog. String enums in Objective-C | Vandad NP. C programming enumeration.c - Documenting enum values with doxygen - Stack Overflow. Enumerated data types in C. Programming in c. I have this enum with String values, which will be used to tell an API method that logs to a server what kind of serverity a message has. Im using Swift 1.2, so enums can be mapped to Objective-C. If we neglect associated values, then the value of an enum can only be an Integer, Floating Point, String, or Boolean.Nevertheless, theoretically it should allow you to add support for bridging an enum (including associated values) to Objective-C.

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