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

Introducing the Model Thread View Thread Pattern

, 1 May 2010
Reduce threading code, and increase UI responsiveness with a new pattern extending MVVM.
Mtvt_2010_5_1__12_15.zip
Libraries
DanielVaughan
DanielVaughan.Silverlight.dll
DanielVaughan.Silverlight.pdb
Microsoft.Practices.ServiceLocation.dll
Microsoft.Practices.Unity.dll
System.ServiceModel.PollingDuplex.dll
System.Xml.Linq.dll
Prism
Silverlight
Microsoft.Practices.Composite.dll
Microsoft.Practices.Composite.pdb
Microsoft.Practices.Composite.Presentation.dll
Microsoft.Practices.Composite.Presentation.pdb
Microsoft.Practices.ServiceLocation.dll
System.Windows.Controls.dll
Mtvt
DanielVaughan.Mtvt.suo
DanielVaughan.Mtvt.vsmdi
Local.testsettings
TraceAndTestImpact.testsettings
DanielVaughan.MtvtExample
Bin
Debug
ar
bg
ca
cs
da
de
el
es
et
eu
fi
fr
he
hr
hu
id
it
ja
ko
lt
lv
ms
nl
no
pl
Properties
pt
pt-BR
ro
ru
sk
sl
sr-Cyrl-CS
sr-Latn-CS
sv
th
tr
uk
vi
zh-Hans
zh-Hant
Release
Collections
CommandModel
ComponentModel
Concurrency
Diagrams
OverviewDiagram.cd
Images
WpfDisciplesBanner.png
obj
Debug
DanielVaughan.MtvtExample.g.resources
DesignTimeResolveAssemblyReferences.cache
DesignTimeResolveAssemblyReferencesInput.cache
TempPE
Properties
Service References
UIModel
DanielVaughan.MtvtExample.Tests
Bin
Debug
ar
bg
ca
cs
da
de
el
es
et
eu
fi
fr
he
hr
hu
id
it
ja
ko
lt
lv
ms
nl
no
pl
Properties
pt
pt-BR
ro
ru
sk
sl
sr-Cyrl-CS
sr-Latn-CS
sv
th
tr
uk
vi
zh-Hans
zh-Hant
Release
Mocks
obj
Debug
DanielVaughan.MtvtExample.Tests.g.resources
DesignTimeResolveAssemblyReferencesInput.cache
ResolveAssemblyReference.cache
TempPE
Properties
DanielVaughan.MtvtExample.Web
bin
ClientBin
obj
Debug
DesignTimeResolveAssemblyReferencesInput.cache
TempPE
Properties
Prism
CAL
CAL.vsmdi
CompositeApplicationLibrary.4.5.resharper.user
CompositeApplicationLibrary_Desktop.4.5.resharper.user
LocalTestRun.testrunconfig
Desktop
Composite
OpenSource.snk
bin
Events
Logging
Modularity
obj
Debug
Composite.Desktop.csproj.GenerateResource.Cache
Microsoft.Practices.Composite.dll
Microsoft.Practices.Composite.pdb
Microsoft.Practices.Composite.Properties.Resources.resources
ResolveAssemblyReference.cache
TempPE
Release
Composite.Desktop.csproj.GenerateResource.Cache
Microsoft.Practices.Composite.dll
Microsoft.Practices.Composite.pdb
Microsoft.Practices.Composite.Properties.Resources.resources
TempPE
Properties.Resources.Designer.cs.dll
Properties
Regions
Composite.Presentation
OpenSource.snk
bin
Commands
Events
obj
Debug
Composite.Presentation.Desktop.csproj.GenerateResource.Cache
Microsoft.Practices.Composite.Presentation.dll
Microsoft.Practices.Composite.Presentation.pdb
Microsoft.Practices.Composite.Presentation.Properties.Resources.resources
ResolveAssemblyReference.cache
TempPE
Release
Composite.Presentation.Desktop.csproj.GenerateResource.Cache
Microsoft.Practices.Composite.Presentation.dll
Microsoft.Practices.Composite.Presentation.pdb
Microsoft.Practices.Composite.Presentation.Properties.Resources.resources
ResolveAssemblyReference.cache
TempPE
Properties.Resources.Designer.cs.dll
Properties
Regions
Behaviors
Silverlight
Composite
Composite.Silverlight.csproj.user
Migrated rules for Composite.Silverlight.ruleset
Bin
Events
Logging
Modularity
obj
Debug
Composite.Silverlight.csproj.GenerateResource.Cache
DesignTimeResolveAssemblyReferencesInput.cache
Microsoft.Practices.Composite.dll
Microsoft.Practices.Composite.pdb
Microsoft.Practices.Composite.Properties.Resources.resources
ResGen.read.1.tlog
ResGen.write.1.tlog
ResolveAssemblyReference.cache
TempPE
Properties.Resources.Designer.cs.dll
Release
Composite.Silverlight.csproj.GenerateResource.Cache
Microsoft.Practices.Composite.dll
Microsoft.Practices.Composite.pdb
Microsoft.Practices.Composite.Properties.Resources.resources
TempPE
Properties
Regions
Composite.Presentation
Composite.Presentation.Silverlight.csproj.user
Migrated rules for Composite.Presentation.Silverlight.ruleset
Bin
Commands
Events
obj
Debug
build.force
Composite.Presentation.Silverlight.csproj.GenerateResource.Cache
DesignTimeResolveAssemblyReferencesInput.cache
Microsoft.Practices.Composite.Presentation.dll
Microsoft.Practices.Composite.Presentation.pdb
Microsoft.Practices.Composite.Presentation.Properties.Resources.resources
ResGen.read.1.tlog
ResGen.write.1.tlog
ResolveAssemblyReference.cache
TempPE
Release
Composite.Presentation.Silverlight.csproj.GenerateResource.Cache
Microsoft.Practices.Composite.Presentation.dll
Microsoft.Practices.Composite.Presentation.pdb
Microsoft.Practices.Composite.Presentation.Properties.Resources.resources
ResolveAssemblyReference.cache
TempPE
Properties
Regions
Behaviors
LIB
Silverlight
ServiceLocation
Microsoft.Practices.ServiceLocation.dll
//===================================================================================
// 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.Windows;

namespace Microsoft.Practices.Composite.Regions
{
    /// <summary>
    /// Defines a model that can be used to compose views.
    /// </summary>
    public interface IRegion : INotifyPropertyChanged
    {
        /// <summary>
        /// Gets a readonly view of the collection of views in the region.
        /// </summary>
        /// <value>An <see cref="IViewsCollection"/> of all the added views.</value>
        IViewsCollection Views { get; }

        /// <summary>
        /// Gets a readonly view of the collection of all the active views in the region.
        /// </summary>
        /// <value>An <see cref="IViewsCollection"/> of all the active views.</value>
        IViewsCollection ActiveViews { get; }

        /// <summary>
        /// Gets or sets a context for the region. This value can be used by the user to share context with the views.
        /// </summary>
        /// <value>The context value to be shared.</value>
        object Context { get; set; }

        /// <summary>
        /// Gets the name of the region that uniequely identifies the region within a <see cref="IRegionManager"/>.
        /// </summary>
        /// <value>The name of the region.</value>
        string Name { get; set; }

        ///<overloads>Adds a new view to the region.</overloads>
        /// <summary>
        /// Adds a new view to the region.
        /// </summary>
        /// <param name="view">The view to add.</param>
        /// <returns>The <see cref="IRegionManager"/> that is set on the view if it is a <see cref="DependencyObject"/>. It will be the current region manager when using this overload.</returns>
        IRegionManager Add(object view);

        /// <summary>
        /// Adds a new view to the region.
        /// </summary>
        /// <param name="view">The view to add.</param>
        /// <param name="viewName">The name of the view. This can be used to retrieve it later by calling <see cref="GetView"/>.</param>
        /// <returns>The <see cref="IRegionManager"/> that is set on the view if it is a <see cref="DependencyObject"/>. It will be the current region manager when using this overload.</returns>
        IRegionManager Add(object view, string viewName);

        /// <summary>
        /// Adds a new view to the region.
        /// </summary>
        /// <param name="view">The view to add.</param>
        /// <param name="viewName">The name of the view. This can be used to retrieve it later by calling <see cref="GetView"/>.</param>
        /// <param name="createRegionManagerScope">When <see langword="true"/>, the added view will receive a new instance of <see cref="IRegionManager"/>, otherwise it will use the current region manager for this region.</param>
        /// <returns>The <see cref="IRegionManager"/> that is set on the view if it is a <see cref="DependencyObject"/>.</returns>
        IRegionManager Add(object view, string viewName, bool createRegionManagerScope);

        /// <summary>
        /// Removes the specified view from the region.
        /// </summary>
        /// <param name="view">The view to remove.</param>
        void Remove(object view);

        /// <summary>
        /// Marks the specified view as active. 
        /// </summary>
        /// <param name="view">The view to activate.</param>
        void Activate(object view);

        /// <summary>
        /// Marks the specified view as inactive. 
        /// </summary>
        /// <param name="view">The view to deactivate.</param>
        void Deactivate(object view);

        /// <summary>
        /// Returns the view instance that was added to the region using a specific name.
        /// </summary>
        /// <param name="viewName">The name used when adding the view to the region.</param>
        /// <returns>Returns the named view or <see langword="null"/> if the view with <paramref name="viewName"/> does not exist in the current region.</returns>
        object GetView(string viewName);

        /// <summary>
        /// Gets or sets the <see cref="IRegionManager"/> that will be passed to the views when adding them to the region, unless the view is added by specifying createRegionManagerScope as <see langword="true" />.
        /// </summary>
        /// <value>The <see cref="IRegionManager"/> where this <see cref="IRegion"/> is registered.</value>
        /// <remarks>This is usually used by implementations of <see cref="IRegionManager"/> and should not be
        /// used by the developer explicitely.</remarks>
        IRegionManager RegionManager { get; set; }

        /// <summary>
        ///     Gets the collection of <see cref="IRegionBehavior"/>s that can extend the behavior of regions. 
        /// </summary>
        IRegionBehaviorCollection Behaviors { get; }
    }
}

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 BSD License

Share

About the Author

Daniel Vaughan
President Outcoder
Switzerland Switzerland
Daniel Vaughan is a Microsoft MVP and co-founder 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 WPF, WinRT, and Windows Phone.
 
Daniel is the author of Windows Phone 8 Unleashed and Windows Phone 7.5 Unleashed, both published by SAMS.
 
Daniel is also the creator of a number of open-source projects, including Calcium SDK, and Clog.
 
Would you like Daniel to bring value to your organisation? Please contact

Daniel's Blog | MVP profile | Follow on Twitter
 
Windows Phone Experts
Follow on   Twitter   Google+   LinkedIn

| Advertise | Privacy | Mobile
Web03 | 2.8.140905.1 | Last Updated 1 May 2010
Article Copyright 2010 by Daniel Vaughan
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid