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(Hybrid Smart Client) RSS Media Player

, 9 Mar 2009 CPOL
A WPF application for viewing RSS video feeds. Built using the MVVM pattern.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Input;
using System.Diagnostics;

namespace RSSVideoPlayer.Common
    /// <summary>
    /// A command whose sole purpose is to 
    /// relay its functionality to other
    /// objects by invoking delegates. The
    /// default return value for the CanExecute
    /// method is 'true'.
    ///  Copied from Josh smith's WPF MVVM Artical
    /// </summary>
    public class RelayCommand : ICommand
        #region Fields

        readonly Action<object> _execute;
        readonly Predicate<object> _canExecute;

        #endregion // Fields

        #region Constructors

        /// <summary>
        /// Creates a new command that can always execute.
        /// </summary>
        /// <param name="execute">The execution logic.</param>
        public RelayCommand(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 RelayCommand(Action<object> execute, Predicate<object> canExecute)
            if (execute == null)
                throw new ArgumentNullException("execute");

            _execute = execute;
            _canExecute = canExecute;

        #endregion // Constructors

        #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)

        #endregion // ICommand Members

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About the Author

Software Developer (Senior) Anytime Fitness
United States United States
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