spc-kiosk-pb/Kiosk/Common/SPC.Kiosk.Base/RelayCommand.cs

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C#
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2019-06-16 05:12:09 +00:00
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Input;
namespace SPC.Kiosk.Base
{
/// <summary>
/// Commad Interfase Implementation
/// </summary>
public class Command : ICommand
{
private readonly Action<object> _handler;
private bool _isEnabled;
/// <summary>
/// Set Commad Handler
/// </summary>
/// <param name="handler"></param>
public Command(Action<object> handler)
{
_handler = handler;
IsEnabled = true;
}
/// <summary>
/// CanExecut Is Enabled
/// </summary>
public bool IsEnabled
{
get { return _isEnabled; }
set
{
if (value != _isEnabled)
{
_isEnabled = value;
CanExecuteChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// CanExecute Status Return
/// </summary>
/// <param name="parameter"></param>
/// <returns></returns>
public bool CanExecute(object parameter)
{
return IsEnabled;
}
/// <summary>
/// CanExecuteChanged EventHandler
/// </summary>
public event EventHandler CanExecuteChanged;
/// <summary>
/// Execute with parameter
/// </summary>
/// <param name="parameter"></param>
public void Execute(object parameter)
{
IsEnabled = false;
_handler(parameter);
IsEnabled = true;
}
/// <summary>
/// Execute with out parameter
/// </summary>
public void Execute()
{
IsEnabled = false;
_handler(null);
IsEnabled = true;
}
}
}