GetObservable<TSource, TResult>(AvaloniaObject, AvaloniaProperty<TSource>, Func<TSource, TResult>) Method

Gets an observable for an AvaloniaProperty.

Definition

Namespace: Avalonia
Assembly: Avalonia.Base (in Avalonia.Base.dll)

C#

public static IObservable<TResult> GetObservable<TSource, TResult>(
	this AvaloniaObject o,
	AvaloniaProperty<TSource> property,
	Func<TSource, TResult> converter
)

VB

<ExtensionAttribute>
Public Shared Function GetObservable(Of TSource, TResult) ( 
	o As AvaloniaObject,
	property As AvaloniaProperty(Of TSource),
	converter As Func(Of TSource, TResult)
) As IObservable(Of TResult)

F#

[<ExtensionAttribute>]
static member GetObservable : 
        o : AvaloniaObject * 
        property : AvaloniaProperty<'TSource> * 
        converter : Func<'TSource, 'TResult> -> IObservable<'TResult> 

Parameters

  AvaloniaObject

  AvaloniaProperty(TSource)

  Func(TSource, TResult)

A method which is executed to convert each property value to TResult.

Type Parameters

The type of the values held by the property.

The type of the value returned by the converter.

Return Value

IObservable(TResult)
An observable which fires immediately with the current value of the property on the object and subsequently each time the property value changes.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type AvaloniaObject. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Remarks

The subscription to o is created using a weak reference.

See Also

Reference

AvaloniaObjectExtensions Class
GetObservable Overload
Avalonia Namespace