47 lines
1.5 KiB
C#
47 lines
1.5 KiB
C#
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using System;
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using System.Windows.Input;
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namespace MembranePoreTester.ViewModels
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{
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public class RelayCommand : ICommand
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{
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private readonly Action _execute;
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private readonly Func<bool> _canExecute;
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public RelayCommand(Action execute, Func<bool> canExecute = null)
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{
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_execute = execute ?? throw new ArgumentNullException(nameof(execute));
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_canExecute = canExecute;
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}
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public event EventHandler CanExecuteChanged
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{
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add { CommandManager.RequerySuggested += value; }
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remove { CommandManager.RequerySuggested -= value; }
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}
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public bool CanExecute(object parameter) => _canExecute == null || _canExecute();
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public void Execute(object parameter) => _execute();
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}
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public class RelayCommand<T> : ICommand
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{
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private readonly Action<T> _execute;
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private readonly Func<T, bool> _canExecute;
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public RelayCommand(Action<T> execute, Func<T, bool> canExecute = null)
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{
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_execute = execute ?? throw new ArgumentNullException(nameof(execute));
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_canExecute = canExecute;
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}
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public event EventHandler CanExecuteChanged
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{
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add { CommandManager.RequerySuggested += value; }
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remove { CommandManager.RequerySuggested -= value; }
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}
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public bool CanExecute(object parameter) => _canExecute == null || _canExecute((T)parameter);
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public void Execute(object parameter) => _execute((T)parameter);
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}
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}
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