syncfusion datagrid context menu

public class BaseCommand : ICommand
{

    #region Fields
    readonly Action<object> _execute;
    readonly Predicate<object> _canExecute;
    #endregion

    #region Constructors
    /// <summary>
    /// Creates a new command that can always execute.
    /// </summary>
    /// <param name="execute">The execution logic.</param>

    public BaseCommand(Action<object> execute)
        : this(execute, null)
    {
    }

    /// <summary>
    /// Creates a new command.
    /// </summary>
    /// <param name="execute">The execution logic.</param>
    /// <param name="canExecute">The execution status logic.</param>

    public BaseCommand(Action<object> execute, Predicate<object> canExecute)
    {

        if (execute == null)
        throw new ArgumentNullException("execute");
        _execute = execute;
        _canExecute = canExecute;
    }
    #endregion
    
    #region ICommand Members

    public bool CanExecute(object parameter)
    {
        return _canExecute == null ? true : _canExecute(parameter);
    }
    
    public event EventHandler CanExecuteChanged
    {
        add { CommandManager.RequerySuggested += value; }
        remove { CommandManager.RequerySuggested -= value; }
    }

    public void Execute(object parameter)
    {
        _execute(parameter);
    }
    
    #endregion
}

public class EmployeeInfoViewModel : INotifyPropertyChanged
{

    public EmployeeInfoViewModel()
    {
        CopyCommand = new ContextMenuDemo.BaseCommand(ShowMessage);
    }
    
    private ICommand copyCommand

    public ICommand CopyCommand
    {
        get
        {
            return copyCommand;
        }
        set
        {
            copyCommand = value;
        }
    }
    
    public void ShowMessage(object obj)
    {

        if (obj is GridRecordContextMenuInfo)
        {
            var grid = (obj as GridRecordContextMenuInfo).DataGrid;
            grid.GridCopyPaste.Copy();
        }
    }
}