Class AutoPersistHelper

Namespace

ReactiveUI

Assembly

ReactiveUI.dll

Helper extension method class associated with the AutoPersist related functionality.

public static class AutoPersistHelper

Inheritance

object

AutoPersistHelper

Methods

ActOnEveryObject<TItem>(ObservableCollection<TItem>, Action<TItem>, Action<TItem>)

Call methods 'onAdd' and 'onRemove' whenever an object is added or removed from a collection. This class correctly handles both when a collection is initialized, as well as when the collection is Reset.

public static IDisposable ActOnEveryObject<TItem>(this ObservableCollection<TItem> @this, Action<TItem> onAdd, Action<TItem> onRemove) where TItem : IReactiveObject

Parameters

this ObservableCollection<TItem>

The reactive collection to watch for changes.

onAdd Action<TItem>

A method to be called when an object is added to the collection.

onRemove Action<TItem>

A method to be called when an object is removed from the collection.

Returns

IDisposable

A Disposable that deactivates this behavior.

Type Parameters

TItem

The item type.

ActOnEveryObject<TItem>(ReadOnlyObservableCollection<TItem>, Action<TItem>, Action<TItem>)

Call methods 'onAdd' and 'onRemove' whenever an object is added or removed from a collection. This class correctly handles both when a collection is initialized, as well as when the collection is Reset.

public static IDisposable ActOnEveryObject<TItem>(this ReadOnlyObservableCollection<TItem> @this, Action<TItem> onAdd, Action<TItem> onRemove) where TItem : IReactiveObject

Parameters

this ReadOnlyObservableCollection<TItem>

The reactive collection to watch for changes.

onAdd Action<TItem>

A method to be called when an object is added to the collection.

onRemove Action<TItem>

A method to be called when an object is removed from the collection.

Returns

IDisposable

A Disposable that deactivates this behavior.

Type Parameters

TItem

The item type.

ActOnEveryObject<TItem>(IObservable<IChangeSet<TItem>>, Action<TItem>, Action<TItem>)

Call methods 'onAdd' and 'onRemove' whenever an object is added or removed from a collection. This class correctly handles both when a collection is initialized, as well as when the collection is Reset.

public static IDisposable ActOnEveryObject<TItem>(this IObservable<IChangeSet<TItem>> @this, Action<TItem> onAdd, Action<TItem> onRemove) where TItem : IReactiveObject

Parameters

this IObservable<IChangeSet<TItem>>

The reactive collection to watch for changes.

onAdd Action<TItem>

A method to be called when an object is added to the collection.

onRemove Action<TItem>

A method to be called when an object is removed from the collection.

Returns

IDisposable

A Disposable that deactivates this behavior.

Type Parameters

TItem

The item type.

ActOnEveryObject<TItem, TCollection>(TCollection, Action<TItem>, Action<TItem>)

Call methods 'onAdd' and 'onRemove' whenever an object is added or removed from a collection. This class correctly handles both when a collection is initialized, as well as when the collection is Reset.

public static IDisposable ActOnEveryObject<TItem, TCollection>(this TCollection collection, Action<TItem> onAdd, Action<TItem> onRemove) where TItem : IReactiveObject where TCollection : INotifyCollectionChanged, IEnumerable<TItem>

Parameters

collection TCollection

The reactive collection to watch for changes.

onAdd Action<TItem>

A method to be called when an object is added to the collection.

onRemove Action<TItem>

A method to be called when an object is removed from the collection.

Returns

IDisposable

A Disposable that deactivates this behavior.

Type Parameters

TItem

The item type.

TCollection

The collection type.

AutoPersistCollection<TItem>(ObservableCollection<TItem>, Func<TItem, IObservable<Unit>>, TimeSpan?)

Apply AutoPersistence to all objects in a collection. Items that are no longer in the collection won't be persisted anymore.

public static IDisposable AutoPersistCollection<TItem>(this ObservableCollection<TItem> @this, Func<TItem, IObservable<Unit>> doPersist, TimeSpan? interval = null) where TItem : IReactiveObject

Parameters

this ObservableCollection<TItem>

The reactive collection to watch for changes.

doPersist Func<TItem, IObservable<Unit>>

The asynchronous method to call to save the object to disk.

interval TimeSpan?

The interval to save the object on. Note that if an object is constantly changing, it is possible that it will never be saved.

Returns

IDisposable

A Disposable to disable automatic persistence.

Type Parameters

TItem

The item type.

AutoPersistCollection<TItem, TDontCare>(ObservableCollection<TItem>, Func<TItem, IObservable<Unit>>, IObservable<TDontCare>, TimeSpan?)

Apply AutoPersistence to all objects in a collection. Items that are no longer in the collection won't be persisted anymore.

public static IDisposable AutoPersistCollection<TItem, TDontCare>(this ObservableCollection<TItem> @this, Func<TItem, IObservable<Unit>> doPersist, IObservable<TDontCare> manualSaveSignal, TimeSpan? interval = null) where TItem : IReactiveObject

Parameters

this ObservableCollection<TItem>

The reactive collection to watch for changes.

doPersist Func<TItem, IObservable<Unit>>

The asynchronous method to call to save the object to disk.

manualSaveSignal IObservable<TDontCare>

When invoked, the object will be saved regardless of whether it has changed.

interval TimeSpan?

The interval to save the object on. Note that if an object is constantly changing, it is possible that it will never be saved.

Returns

IDisposable

A Disposable to disable automatic persistence.

Type Parameters

TItem

The item type.

TDontCare

The return signal type.

AutoPersistCollection<TItem, TDontCare>(ReadOnlyObservableCollection<TItem>, Func<TItem, IObservable<Unit>>, IObservable<TDontCare>, TimeSpan?)

Apply AutoPersistence to all objects in a collection. Items that are no longer in the collection won't be persisted anymore.

public static IDisposable AutoPersistCollection<TItem, TDontCare>(this ReadOnlyObservableCollection<TItem> @this, Func<TItem, IObservable<Unit>> doPersist, IObservable<TDontCare> manualSaveSignal, TimeSpan? interval = null) where TItem : IReactiveObject

Parameters

this ReadOnlyObservableCollection<TItem>

The reactive collection to watch for changes.

doPersist Func<TItem, IObservable<Unit>>

The asynchronous method to call to save the object to disk.

manualSaveSignal IObservable<TDontCare>

When invoked, the object will be saved regardless of whether it has changed.

interval TimeSpan?

The interval to save the object on. Note that if an object is constantly changing, it is possible that it will never be saved.

Returns

IDisposable

A Disposable to disable automatic persistence.

Type Parameters

TItem

The item type.

TDontCare

The signal type.

AutoPersistCollection<TItem, TCollection, TDontCare>(TCollection, Func<TItem, IObservable<Unit>>, IObservable<TDontCare>, TimeSpan?)

Apply AutoPersistence to all objects in a collection. Items that are no longer in the collection won't be persisted anymore.

public static IDisposable AutoPersistCollection<TItem, TCollection, TDontCare>(this TCollection @this, Func<TItem, IObservable<Unit>> doPersist, IObservable<TDontCare> manualSaveSignal, TimeSpan? interval = null) where TItem : IReactiveObject where TCollection : INotifyCollectionChanged, IEnumerable<TItem>

Parameters

this TCollection

The reactive collection to watch for changes.

doPersist Func<TItem, IObservable<Unit>>

The asynchronous method to call to save the object to disk.

manualSaveSignal IObservable<TDontCare>

When invoked, the object will be saved regardless of whether it has changed.

interval TimeSpan?

The interval to save the object on. Note that if an object is constantly changing, it is possible that it will never be saved.

Returns

IDisposable

A Disposable to disable automatic persistence.

Type Parameters

TItem

The item type.

TCollection

The collection type.

TDontCare

The signal type.

AutoPersist<T>(T, Func<T, IObservable<Unit>>, TimeSpan?)

AutoPersist allows you to automatically call a method when an object has changed, throttling on a certain interval. Note that this object must mark its persistent properties via the [DataMember] attribute. Changes to properties not marked with DataMember will not trigger the object to be saved.

public static IDisposable AutoPersist<T>(this T @this, Func<T, IObservable<Unit>> doPersist, TimeSpan? interval = null) where T : IReactiveObject

Parameters

this T

The reactive object to watch for changes.

doPersist Func<T, IObservable<Unit>>

The asynchronous method to call to save the object to disk.

interval TimeSpan?

The interval to save the object on. Note that if an object is constantly changing, it is possible that it will never be saved.

Returns

IDisposable

A Disposable to disable automatic persistence.

Type Parameters

T

The reactive object type.

AutoPersist<T, TDontCare>(T, Func<T, IObservable<Unit>>, IObservable<TDontCare>, TimeSpan?)

AutoPersist allows you to automatically call a method when an object has changed, throttling on a certain interval. Note that this object must mark its persistent properties via the [DataMember] attribute. Changes to properties not marked with DataMember will not trigger the object to be saved.

public static IDisposable AutoPersist<T, TDontCare>(this T @this, Func<T, IObservable<Unit>> doPersist, IObservable<TDontCare> manualSaveSignal, TimeSpan? interval = null) where T : IReactiveObject

Parameters

this T

The reactive object to watch for changes.

doPersist Func<T, IObservable<Unit>>

The asynchronous method to call to save the object to disk.

manualSaveSignal IObservable<TDontCare>

When invoked, the object will be saved regardless of whether it has changed.

interval TimeSpan?

The interval to save the object on. Note that if an object is constantly changing, it is possible that it will never be saved.

Returns

IDisposable

A Disposable to disable automatic persistence.

Type Parameters

T

The reactive object type.

TDontCare

The save signal type.