See also
Hi,
You can use the F# "Event" type to create an event. If you want to compile it as a standard C# event declaration, you'll need to use "CLIEvent" attribute (this is new in the latest version). You can also use "DelegateEvent" type if you want to specify the delegate type explicitly (otherwise, F# uses some generic delegate type from FSharp.Core.dll):
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
namespace FSharpLib // Declare class for testing, which can be used from C# type Test() = // Declare event with 'EventHandler' delegate let evt1 = new DelegateEvent<System.EventHandler>() // Deckare event that'll use standard F# generic delegate type let evt2 = new Event<System.EventArgs>() // Expose the first event as C# event [<CLIEvent>] member x.Event1 = evt1.Publish member x.Foo1() = evt1.Trigger([| box x; box System.EventArgs.Empty |]) // trigger it // Expose the second event as C#-compatible event [<CLIEvent>] member x.Event2 = evt2.Publish member x.Foo2() = evt2.Trigger(System.EventArgs.Empty) // trigger it!
Thanks! That was exactly what I needed.
Any chance you could post the matching code in C# that hooks up to this event?
Thanks
Charlie
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Hi,
I am having a very hard time finding information about how to create an event in F# that can be used by other .NET languages. Can anyone provide an example (and perhaps some explanation along with it) of a class implemented in F# which creates a new event such that a C# client can see that event?
Thanks.
Kent