RelayCommand<T> Constructors
Definition
Important
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Overloads
| RelayCommand<T>(Action<T>) |
Initializes a new instance of the RelayCommand<T> class that can always execute. |
| RelayCommand<T>(Action<T>, Predicate<T>) |
Initializes a new instance of the RelayCommand<T> class. |
RelayCommand<T>(Action<T>)
Initializes a new instance of the RelayCommand<T> class that can always execute.
public RelayCommand (Action<T?> execute);new Microsoft.Toolkit.Mvvm.Input.RelayCommand<'T> : Action<'T> -> Microsoft.Toolkit.Mvvm.Input.RelayCommand<'T>Public Sub New (execute As Action(Of T))Parameters
- execute
- Action<T>
The execution logic.
Remarks
Due to the fact that the ICommand interface exposes methods that accept a nullable Object parameter, it is recommended that if T is a reference type, you should always declare it as nullable, and to always perform checks within execute.
Applies to
RelayCommand<T>(Action<T>, Predicate<T>)
Initializes a new instance of the RelayCommand<T> class.
public RelayCommand (Action<T?> execute, Predicate<T?> canExecute);new Microsoft.Toolkit.Mvvm.Input.RelayCommand<'T> : Action<'T> * Predicate<'T> -> Microsoft.Toolkit.Mvvm.Input.RelayCommand<'T>Public Sub New (execute As Action(Of T), canExecute As Predicate(Of T))Parameters
- execute
- Action<T>
The execution logic.
- canExecute
- Predicate<T>
The execution status logic.
Remarks
See notes in RelayCommand<T>(Action<T>).