)} ,System.String)} ,System.Action{System.EventHandler{--1}},System.Action{System.EventHandler{--1}})}

ICreatesCommandBinding.BindCommandToObject(ICommand?, T?, IObservable) method¶

Defined in

Type: ICreatesCommandBinding Namespace: ReactiveUI.Binding 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. IDisposable? BindCommandToObject<T>(ICommand? command, T? target, IObservable<object?> commandParameter) where T : class
2. IDisposable? BindCommandToObject<T, TEventArgs>(ICommand? command, T? target, IObservable<object?> commandParameter, string eventName) where T : class
3. IDisposable? BindCommandToObject<T, TEventArgs>(ICommand? command, T? target, IObservable<object?> commandParameter, Action<EventHandler<TEventArgs>> addHandler, Action<EventHandler<TEventArgs>> removeHandler) where T : class where TEventArgs : EventArgs

1. Overload¶

Attributes: [RequiresUnreferencedCode("String/reflection-based event binding may require members removed by trimming.")]

IDisposable? BindCommandToObject<T>(ICommand? command, T? target, IObservable<object?> commandParameter) where T : class

Summary: Binds an ICommand to a UI object using the default event. The default event is determined by the implementation (e.g., Click, TouchUpInside).

Type parameters

Name	Description
`T`	The type of the target object.

Parameters

Name	Type	Description
`command`	ICommand?	The command to bind. If `null`, no binding is created.
`target`	`T?`	The target object, usually a UI control.
`commandParameter`	IObservable	An observable that provides the command parameter value.

Returns: IDisposable? -- An IDisposable that disconnects the binding when disposed, or null if no binding was created.

2. Overload¶

Attributes: [RequiresUnreferencedCode("String/reflection-based event binding may require members removed by trimming.")]

IDisposable? BindCommandToObject<T, TEventArgs>(ICommand? command, T? target, IObservable<object?> commandParameter, string eventName) where T : class

Summary: Binds an ICommand to a UI object to a specific named event.

Type parameters

Name	Description
`T`	The type of the target object.
`TEventArgs`	The event argument type.

Parameters

Name	Type	Description
`command`	ICommand?	The command to bind. If `null`, no binding is created.
`target`	`T?`	The target object, usually a UI control.
`commandParameter`	IObservable	An observable that provides the command parameter value.
`eventName`	string	The event to bind to.

Returns: IDisposable? -- An IDisposable that disconnects the binding when disposed, or null if no binding was created.

3. Overload¶

IDisposable? BindCommandToObject<T, TEventArgs>(ICommand? command, T? target, IObservable<object?> commandParameter, Action<EventHandler<TEventArgs>> addHandler, Action<EventHandler<TEventArgs>> removeHandler) where T : class where TEventArgs : EventArgs

Summary: Binds a command to a specific event on a target object using explicit add/remove handler delegates. This overload is fully AOT-compatible as it avoids reflection-based event lookup.

Type parameters

Name	Description
`T`	The type of the target object.
`TEventArgs`	The event arguments type.

Parameters

Name	Type	Description
`command`	ICommand?	The command to bind. If `null`, no binding is created.
`target`	`T?`	The target object.
`commandParameter`	IObservable	An observable that supplies command parameter values.
`addHandler`	Action>	Adds the handler to the target event.
`removeHandler`	Action>	Removes the handler from the target event.

Returns: IDisposable? -- A disposable that unbinds the command.