Hi,
How I do Implement the access to my CommandParameter in my RelayCommand?
public class RelayCommand : ICommand
{
#region private fields
private readonly Action execute;
private readonly Func<bool> canExecute;
#endregion
public event EventHandler CanExecuteChanged
{
// wire the CanExecutedChanged event only if the canExecute func
// is defined (that improves perf when canExecute is not used)
add
{
if (this.canExecute != null)
CommandManager.RequerySuggested += value;
}
remove
{
if (this.canExecute != null)
CommandManager.RequerySuggested -= value;
}
}
/// <summary>
/// Initializes a new instance of the RelayCommand class
/// </summary>
/// <param name="execute">The execution logic.</param>
public RelayCommand(Action execute)
: this(execute, null)
{
}
/// <summary>
/// Initializes a new instance of the RelayCommand class
/// </summary>
/// <param name="execute">The execution logic.</param>
/// <param name="canExecute">The execution status logic.</param>
public RelayCommand(Action execute, Func<bool> canExecute)
{
if (execute == null)
throw new ArgumentNullException("execute");
this.execute = execute;
this.canExecute = canExecute;
}
public void Execute(object parameter)
{
this.execute();
}
public bool CanExecute(object parameter)
{
return this.canExecute == null ? true : this.canExecute();
}
}