示例#1
0
        /// <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>
        /// <exception cref="ArgumentNullException">If the execute argument is null.</exception>
        public RelayCommand(Action <T> execute, Func <T, bool> canExecute)
        {
            if (execute == null)
            {
                throw new ArgumentNullException("execute");
            }

            _execute = new WeakAction <T>(execute);

            if (canExecute != null)
            {
                _canExecute = new WeakFunc <T, bool>(canExecute);
            }
        }