Class RelayCommand
A _command whose sole purpose is to relay its functionality to other objects by invoking delegates. The default return value for the CanExecute(Nullable<Object>) method is true. This type does not allow you to accept _command parameters in the Execute(Nullable<Object>) and CanExecute(Nullable<Object>) callback methods.
Inheritance
System.Object
RelayCommand
Namespace: ISynergy.Framework.Mvvm.Commands
Assembly: ISynergy.Framework.Mvvm.dll
Syntax
public sealed class RelayCommand : object, IRelayCommandConstructors
View SourceRelayCommand(Action)
Initializes a new instance of the RelayCommand class that can always _execute.
Declaration
public RelayCommand(Action execute)Parameters
| Type | Name | Description |
|---|---|---|
| Action | execute | The execution logic. |
RelayCommand(Action, Func<Boolean>)
Initializes a new instance of the RelayCommand class.
Declaration
public RelayCommand(Action execute, Func<bool> canExecute)Parameters
| Type | Name | Description |
|---|---|---|
| Action | execute | The execution logic. |
| Func<System.Boolean> | canExecute | The execution status logic. |
Methods
View SourceCanExecute(Nullable<Object>)
Declaration
public bool CanExecute(object? parameter)Parameters
| Type | Name | Description |
|---|---|---|
| System.Nullable<System.Object> | parameter |
Returns
| Type | Description |
|---|---|
| System.Boolean |
Execute(Nullable<Object>)
Declaration
public void Execute(object? parameter)Parameters
| Type | Name | Description |
|---|---|---|
| System.Nullable<System.Object> | parameter |
NotifyCanExecuteChanged()
Notifies that the
Declaration
public void NotifyCanExecuteChanged()Events
View SourceCanExecuteChanged
Declaration
public event EventHandler? CanExecuteChangedEvent Type
| Type | Description |
|---|---|
| System.Nullable<EventHandler> |
Implements
ICommand