Click here to Skip to main content
Click here to Skip to main content
Add your own
alternative version

A Sample Silverlight 4 Application Using MEF, MVVM, and WCF RIA Services - Part 1

, 7 Jul 2011
Part 1 of a series describing the creation of a Silverlight business application using MEF, MVVM Light, and WCF RIA Services.
IssueVisionforSilverlightSetup20110630.zip
IssueVision for Silverlight Setup
IssueVisionSetup.msi
setup.exe
IssueVision_for_Silverlight_setup.zip
IssueVisionSetup.msi
setup.exe
IssueVision_Silverlight20110630.zip
IssueVision.Silverlight
Assemblies
GalaSoft.MvvmLight.Extras.SL4.dll
GalaSoft.MvvmLight.SL4.dll
MenuControls.dll
System.Windows.Controls.DataVisualization.Toolkit.dll
System.Windows.Controls.Toolkit.dll
System.Windows.Controls.Toolkit.Internals.dll
System.Windows.Interactivity.dll
Database
IssueVision.Client
IssueVision.Client.csproj.user
Assets
Signin.png
Controls
Properties
Views
IssueVision.Common
IssueVision.Common.csproj.user
Controls
Helpers
Models
Properties
Resources
Themes
IssueVision.Data
IssueVision.Data.csproj.user
Properties
Web
Resources
IssueVision.Data.Web
IssueVision.edmx
Helpers
MetadataClasses
Properties
Resources
Services
IssueVision.Model
IssueVision.Model.csproj.user
Properties
IssueVision.Setup
IssueVisionSetup.vdproj
IssueVision.ViewModel
IssueVision.ViewModel.csproj.user
Properties
IssueVision.Web
IssueVision.Web.csproj.user
Properties
IssueVision_Silverlight_20110316.zip
GalaSoft.MvvmLight.Extras.SL4.dll
GalaSoft.MvvmLight.SL4.dll
MenuControls.dll
System.Windows.Controls.DataVisualization.Toolkit.dll
System.Windows.Controls.Toolkit.dll
System.Windows.Controls.Toolkit.Internals.dll
System.Windows.Interactivity.dll
IssueVision.Client.csproj.user
Signin.png
DataSources
IssueVision.Data.Web.IssueVisionContext.datasource
IssueVision.Data.Web.PasswordResetContext.datasource
IssueVision.Common.csproj.user
IssueVision.Data.csproj.user
IssueVision.edmx
DataTypes
IssueVision.Model.csproj.user
IssueVisionSetup.vdproj
IssueVision.ViewModel.csproj.user
IssueVision.Web.csproj.user
IssueVision_Silverlight_20110606.zip
GalaSoft.MvvmLight.Extras.SL4.dll
GalaSoft.MvvmLight.SL4.dll
MenuControls.dll
System.Windows.Controls.DataVisualization.Toolkit.dll
System.Windows.Controls.Toolkit.dll
System.Windows.Controls.Toolkit.Internals.dll
System.Windows.Interactivity.dll
IssueVision.Client.csproj.user
Signin.png
IssueVision.Common.csproj.user
IssueVision.Data.csproj.user
IssueVision.edmx
IssueVision.Model.csproj.user
IssueVisionSetup.vdproj
IssueVision.ViewModel.csproj.user
IssueVision.Web.csproj.user
IssueVision_Silverlight_Setup.zip
IssueVisionSetup.msi
setup.exe
using System;
using System.Windows;
using System.Windows.Controls;
using GalaSoft.MvvmLight;
using GalaSoft.MvvmLight.Messaging;
using IssueVision.Common;

namespace IssueVision.Client
{
    public partial class MyProfile : UserControl, ICleanup
    {
        #region "Private Data Members"
        private const double MinimumWidth = 640;
        private Lazy<ViewModelBase> _viewModelExport;
        #endregion "Private Data Members"

        #region "Constructor"
        public MyProfile()
        {
            InitializeComponent();
            // initialize the UserControl Width & Height
            Content_Resized(this, null);

            // register any AppMessages here

            if (!ViewModelBase.IsInDesignModeStatic)
            {
                // Use MEF To load the View Model
                _viewModelExport = App.Container.GetExport<ViewModelBase>(
                    ViewModelTypes.MyProfileViewModel);
                if (_viewModelExport != null) DataContext = _viewModelExport.Value;
            }
        }
        #endregion "Constructor"

        #region "Logic to dynamically set UserControl Width and Height"

        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            Application.Current.Host.Content.Resized += Content_Resized;
        }

        private void UserControl_Unloaded(object sender, RoutedEventArgs e)
        {
            Application.Current.Host.Content.Resized -= Content_Resized;
        }

        private void Content_Resized(object sender, EventArgs e)
        {
            // stretch the UserControl to the current browser width if wider than MinimumWidth
            if (Application.Current.Host.Content.ActualWidth < MinimumWidth)
                Width = MinimumWidth;
            else
                Width = Application.Current.Host.Content.ActualWidth;
            // stretch the UserControl to the current brower Height - Title Height(42) - Menu Height(22)
            Height = Application.Current.Host.Content.ActualHeight - 42 - 22;
        }

        #endregion "Logic to dynamically set UserControl Width and Height"

        #region "ICleanup interface implementation"

        public void Cleanup()
        {
            // call Cleanup on its ViewModel
            ((ICleanup)DataContext).Cleanup();
            // cleanup itself
            Messenger.Default.Unregister(this);
            // set DataContext to null and call ReleaseExport()
            DataContext = null;
            App.Container.ReleaseExport(_viewModelExport);
            _viewModelExport = null;
        }

        #endregion "ICleanup interface implementation"

        #region "Event handlers"

        private void passwordAnswerPasswordBox_PasswordChanged(object sender, RoutedEventArgs e)
        {
            // update the ActualPasswordAnswer every time PasswordAnswer changes
            actualPasswordAnswerTextBlock.Text = passwordAnswerPasswordBox.Password;
        }

        private void newPasswordPasswordBox_PasswordChanged(object sender, RoutedEventArgs e)
        {
            // update the ActualNewPassword every time new password changes
            actualNewPasswordTextBlock.Text = newPasswordPasswordBox.Password;
        }

        #endregion "Event handlers"
    }
}

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Share

About the Author

Weidong Shen
Software Developer (Senior)
United States United States
Weidong has been an information system professional since 1990. He has a Master's degree in Computer Science, and is currently a MCSD .NET

| Advertise | Privacy | Mobile
Web01 | 2.8.140827.1 | Last Updated 7 Jul 2011
Article Copyright 2010 by Weidong Shen
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid