Snippets tagged reactive
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Disposable computation builder
Computation builder that provides easy way of constructing IDisposable objects. It supports elegant composition of disposable objects using 'do!' which can be used for example when working with 'IObservable' type.
42 people like this
Like the snippet!Posted: 13 years ago by Tomas Petricek
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Simple Reactive Extensions Example
Subject is a class that implements both IObservable<'T> and IObserver<'T>
6 people like this
Like the snippet!Posted: 13 years ago by Tuomas Hietanen
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Map for ObservableCollection
The snippet implements 'map' and 'init' functions for the 'ObservableCollection' type. These are similar to well-known functions for sequences, but 'map' works in an incremental fashion. When the source collection changes, the resulting collection is updated.
3 people like this
Like the snippet!Posted: 12 years ago by Tomas Petricek
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Converting an Async operation to IObservable
Helper Type Extension to convert an Async computation to IObservable.
4 people like this
Like the snippet!Posted: 9 years ago by Riccardo Terrell
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Resource cleanup event combinator
Declares an event combinator 'Event.using' that automatically releases resources allocated by a previous event occurence. Each event occurence creates a value using a function specified by the user and automatically calls 'Dispose' when generating a new value.
2 people like this
Like the snippet!Posted: 13 years ago by Tomas Petricek
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Building a WPF application in functional way
I started to write pure F# + WPF application in about half a year ago. Today, I found a good way to compose WPF controls with dependent values. It's only writing a dependency object type as a class and give it to constructors of GUI controls. In this snippet "Volume","ColorVolume" and "ShapeContainer" has no properties. But works as a View which represents internal Model and allows users to change internal data. You only need calling a constructor of them. It means that you can compose GUI controls and it's functionality as a immutable data structure. (Update 2011/12/02 8:33:00(UTC+09:00) : Removed some user defined operators and renamed a type similar to DependencyObject in this snippet Reactor to SharedValue.) (Update 2011/12/02 9:04:01(UTC+09:00) : renamed some variables..)
22 people like this
Like the snippet!Posted: 12 years ago by nagat01
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Converting a Task to IObservable
Helper Type Extension to convert a System.Threading.Tasks.Task to IObservable.
1 people like this
Like the snippet!Posted: 9 years ago by Riccardo Terrell
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Floating window over observables
Creates an observable that returns windows of size 'n' (or smaller at the start) containing 'n' past values produced by observable 'source'. The order of items in the returned buffers is not guaranteed (it's a circular buffer).
3 people like this
Like the snippet!Posted: 8 years ago by Tomas Petricek