ICommand.CanExecuteChanged Event
Important
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Occurs when changes take place that affect whether or not the command should execute.
public:
event EventHandler ^ CanExecuteChanged;C#
event EventHandler CanExecuteChanged;C#
event EventHandler? CanExecuteChanged;member this.CanExecuteChanged : EventHandler Event CanExecuteChanged As EventHandler Normally, a command source calls CanExecute on the command when this event occurs. If the command cannot execute, the command source disables itself.
| Produkt | Versiounen |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
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