Downloads: Introducing the Model Thread View Thread Pattern

//===================================================================================
// Microsoft patterns & practices
// Composite Application Guidance for Windows Presentation Foundation and Silverlight
//===================================================================================
// Copyright (c) Microsoft Corporation.  All rights reserved.
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY
// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT
// LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE.
//===================================================================================
// The example companies, organizations, products, domain names,
// e-mail addresses, logos, people, places, and events depicted
// herein are fictitious.  No association with any real company,
// organization, product, domain name, email address, logo, person,
// places, or events is intended or should be inferred.
//===================================================================================
using System;
using System.ComponentModel;
using System.IO;

namespace Microsoft.Practices.Composite.Modularity
{
    /// <summary>
    /// Provides data for the <see cref="FileDownloader.DownloadCompleted"/> event.
    /// </summary>
    public class DownloadCompletedEventArgs : AsyncCompletedEventArgs
    {
        private readonly Stream result;

        /// <summary>
        /// Initializes a new instance of the <see cref="DownloadCompletedEventArgs"/> class.
        /// </summary>
        /// <param name="result">The downloaded <see cref="Stream"/>.</param>
        /// <param name="error">Any error that occurred during the asynchronous operation.</param>
        /// <param name="canceled">A value that indicates whether the asynchronous operation was canceled.</param>
        /// <param name="userState">The optional user-supplied state object that is used to identify the task that raised the MethodNameCompleted event.</param>
        public DownloadCompletedEventArgs(Stream result, Exception error, bool canceled, object userState)
            : base(error, canceled, userState)
        {
            this.result = result;
        }

        /// <summary>
        /// Gets the downloaded <see cref="Stream"/>.
        /// </summary>
        public Stream Result
        {
            get { return this.result; }
        }
    }
}

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License

This article, along with any associated source code and files, is licensed under The BSD License

About the Author

Daniel Vaughan

Software Developer (Senior) Outcoder

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Daniel Vaughan is a Microsoft MVP and cofounder of Outcoder, a Swiss software and consulting company dedicated to creating best-of-breed user experiences and leading-edge back-end solutions, using the Microsoft stack of technologies--in particular Silverlight, WPF, WinRT, and Windows Phone.

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Reduce threading code, and increase UI responsiveness with a new pattern extending MVVM.

Type	Article
Licence	BSD
First Posted	1 May 2010
Views	56,888
Downloads	543
Bookmarked	165 times

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