I forgot the syntax for strongly typed enums in .NET. I know C#
supports them. Not sure if strong-typing of enums is CLS compliant but,
can you refresh my memory with the C# syntax and VB syntax, please?
I've been looking in "Professional C#" to no avail yet. I don't
remember where I saw the syntax on an earlier occassion. This is just a
small thing I am trying to memorize. 7 3599
Can't say for C#, but in VB.NET:
Public Enum something As IntegerBasedType
item = number
item= number
item= number
item= number
etc.
End Enum
Note that it is not necessary to manually assign numeric values if you don't
want to. In that case, the values will automatically assigned Integer
values starting from zero.
"Sathyaish" <sa*******@gmail.com> wrote in message
news:11*********************@o13g2000cwo.googlegro ups.com... I forgot the syntax for strongly typed enums in .NET. I know C# supports them. Not sure if strong-typing of enums is CLS compliant but, can you refresh my memory with the C# syntax and VB syntax, please?
I've been looking in "Professional C#" to no avail yet. I don't remember where I saw the syntax on an earlier occassion. This is just a small thing I am trying to memorize.
The C# language spec contains information on the enum. http://msdn.microsoft.com/library/de...pspec_14_3.asp
--
Tim Wilson
..NET Compact Framework MVP
"Sathyaish" <sa*******@gmail.com> wrote in message
news:11*********************@o13g2000cwo.googlegro ups.com... I forgot the syntax for strongly typed enums in .NET. I know C# supports them. Not sure if strong-typing of enums is CLS compliant but, can you refresh my memory with the C# syntax and VB syntax, please?
I've been looking in "Professional C#" to no avail yet. I don't remember where I saw the syntax on an earlier occassion. This is just a small thing I am trying to memorize.
"Sathyaish" <sa*******@gmail.com> schrieb: I forgot the syntax for strongly typed enums in .NET. I know C# supports them. Not sure if strong-typing of enums is CLS compliant but, can you refresh my memory with the C# syntax and VB syntax, please?
In addition to the other replies, yes, enumeration types are CLS compilant.
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>
Thanks, everybody.
Just for any one else looking for the same information later, the
syntax, as given by the C# specification is:
enum EnumerationName: DataType
{
elementOne;
elementTwo;
}
e.g.
enum NumeralOrders: uint32
{
tens=10,
hundreds=100,
....
....
millions=1000000,
...
...
thingamajillion=1000000000000
}
Sathyaish wrote: I forgot the syntax for strongly typed enums in .NET. I know C# supports them. Not sure if strong-typing of enums is CLS compliant but, can you refresh my memory with the C# syntax and VB syntax, please?
Also, I should point out that in C#, all enums are "strongly-type" which
means that a varaible declared as an enum type, can only be that enum type:
enum ABC {A, B, C}
enum XYZ {X, Y, Z}
public static void Main()
{
ABC abc = XYZ.X; // error
ABC def = 2; // error
}
I assume what you are actually after is not a "Strongly-typed enum", but "an
enum with a user-specified underlying type"
--
Truth,
James Curran [erstwhile-MVP]
Home: www.noveltheory.com Work: www.njtheater.com
Blog: www.honestillusion.com Day Job: www.partsearch.com
"James Curran" <Ja*********@mvps.org> schrieb: I forgot the syntax for strongly typed enums in .NET. I know C# supports them. Not sure if strong-typing of enums is CLS compliant but, can you refresh my memory with the C# syntax and VB syntax, please?
Also, I should point out that in C#, all enums are "strongly-type" which means that a varaible declared as an enum type, can only be that enum type:
This applies to VB.NET with 'Option Strict On' too.
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>
"James Curran" <Ja*********@mvps.org> wrote Also, I should point out that in C#, all enums are "strongly-type" which means that a varaible declared as an enum type, can only be that enum type:
enum ABC {A, B, C} enum XYZ {X, Y, Z} public static void Main() { ABC abc = XYZ.X; // error ABC def = 2; // error }
Yes, but you can do this:
enum ABC {A, B, C}
public static void Main()
{
ABC abc = (ABC)42; // no error
}
From the C# spec (14.5): "The set of values that an enum type can take on is
not limited by its enum members. In particular, any value of the underlying
type of an enum can be cast to the enum type, and is a distinct valid value
of that enum type." http://msdn.microsoft.com/library/de...pspec_14_5.asp
Regards,
Marcus This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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