})} },System.Boolean)} },System.Boolean,System.Boolean,System.Boolean)}

ReactiveNotifyPropertyChangedMixin.ObservableForProperty(TSender?, string) method¶

Defined in

Type: ReactiveNotifyPropertyChangedMixin Namespace: ReactiveUI.Binding.ObservableForProperty Assembly: ReactiveUI.Binding.dll

Applies to

net10.0, net10.0-browserwasm1.0, net10.0-desktop1.0, net9.0, net9.0-browserwasm1.0, net9.0-desktop1.0, net8.0, net8.0-ios17.5, net8.0-maccatalyst17.5, net8.0-macos14.2, net8.0-macos14.5, net8.0-tvos17.2, netstandard2.1, net462, net481

Overloads¶

1. public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, string propertyName)
2. public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, string propertyName, bool skipInitial)
3. public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, string propertyName, bool beforeChange, bool skipInitial, bool isDistinct)
4. public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, Expression<Func<TSender, TValue>> property)
5. public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, Expression<Func<TSender, TValue>> property, bool skipInitial)
6. public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, Expression<Func<TSender, TValue>> property, bool beforeChange, bool skipInitial, bool isDistinct)

1. Overload¶

Attributes: [RequiresUnreferencedCode("Creating Expressions requires unreferenced code because the members being referenced by the Expression may be trimmed.")]

public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, string propertyName)

View source

Summary: ObservableForProperty by name, observing after-change, emitting the initial value, with distinct filtering.

Type parameters

Name	Description
`TSender`	The sender type.
`TValue`	The value type.

Parameters

Name	Type	Description
`item`	`TSender?`	The source object to observe properties of.
`propertyName`	string	The property name to observe.

Returns: IObservable> -- An Observable representing the property change notifications for the given property name.

2. Overload¶

Attributes: [RequiresUnreferencedCode("Creating Expressions requires unreferenced code because the members being referenced by the Expression may be trimmed.")]

public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, string propertyName, bool skipInitial)

View source

Summary: ObservableForProperty by name, observing after-change with distinct filtering and a configurable initial value.

Type parameters

Name	Description
`TSender`	The sender type.
`TValue`	The value type.

Parameters

Name	Type	Description
`item`	`TSender?`	The source object to observe properties of.
`propertyName`	string	The property name to observe.
`skipInitial`	bool	If true, the Observable will not notify with the initial value.

Returns: IObservable> -- An Observable representing the property change notifications for the given property name.

3. Overload¶

Attributes: [RequiresUnreferencedCode("Creating Expressions requires unreferenced code because the members being referenced by the Expression may be trimmed.")]

public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, string propertyName, bool beforeChange, bool skipInitial, bool isDistinct)

View source

Summary: ObservableForProperty returns an Observable representing the property change notifications for a specific property on an object. This overload avoids expression tree analysis by using a property name string.

Type parameters

Name	Description
`TSender`	The sender type.
`TValue`	The value type.

Parameters

Name	Type	Description
`item`	`TSender?`	The source object to observe properties of.
`propertyName`	string	The property name to observe.
`beforeChange`	bool	If true, the Observable will notify immediately before a property is going to change.
`skipInitial`	bool	If true, the Observable will not notify with the initial value.
`isDistinct`	bool	If set to true, values are filtered with DistinctUntilChanged.

Returns: IObservable> -- An Observable representing the property change notifications for the given property name.

4. Overload¶

Attributes: [RequiresUnreferencedCode("Evaluates expression-based member chains via reflection; members may be trimmed.")]

public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, Expression<Func<TSender, TValue>> property)

View source

Summary: ObservableForProperty by expression, observing after-change, emitting the initial value, with distinct filtering.

Type parameters

Name	Description
`TSender`	The sender type.
`TValue`	The value type.

Parameters

Name	Type	Description
`item`	`TSender?`	The source object to observe properties of.
`property`	Expression>	An Expression representing the property.

Returns: IObservable> -- An Observable representing the property change notifications for the given property.

5. Overload¶

Attributes: [RequiresUnreferencedCode("Evaluates expression-based member chains via reflection; members may be trimmed.")]

public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, Expression<Func<TSender, TValue>> property, bool skipInitial)

View source

Summary: ObservableForProperty by expression, observing after-change with distinct filtering and a configurable initial value.

Type parameters

Name	Description
`TSender`	The sender type.
`TValue`	The value type.

Parameters

Name	Type	Description
`item`	`TSender?`	The source object to observe properties of.
`property`	Expression>	An Expression representing the property.
`skipInitial`	bool	If true, the Observable will not notify with the initial value.

Returns: IObservable> -- An Observable representing the property change notifications for the given property.

6. Overload¶

Attributes: [RequiresUnreferencedCode("Evaluates expression-based member chains via reflection; members may be trimmed.")]

public static IObservable<IObservedChange<TSender, TValue>> ObservableForProperty<TSender, TValue>(this TSender? item, Expression<Func<TSender, TValue>> property, bool beforeChange, bool skipInitial, bool isDistinct)

View source

Summary: ObservableForProperty returns an Observable representing the property change notifications for a specific property on an object. This method uses expression trees to identify the property.

Type parameters

Name	Description
`TSender`	The sender type.
`TValue`	The value type.

Parameters

Name	Type	Description
`item`	`TSender?`	The source object to observe properties of.
`property`	Expression>	An Expression representing the property.
`beforeChange`	bool	If true, the Observable will notify immediately before a property is going to change.
`skipInitial`	bool	If true, the Observable will not notify with the initial value.
`isDistinct`	bool	If set to true, values are filtered with DistinctUntilChanged.

Returns: IObservable> -- An Observable representing the property change notifications for the given property.