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Model View Presenter via .NET

, 10 Oct 2009 CPOL
An article outlining an implementation of the Model View Presenter pattern in .NET, contrasting it with existing implementations of MVP, MVC, and using co-dependant interfaces to allow for abstract coordination.
ExampleProject.Contracts
bin
Debug
CobaltSoftware.Foundation.ModelViewPresenter.dll
ExampleProject.Contracts.dll
Properties
ExampleProject.Model
bin
Debug
CobaltSoftware.Foundation.ModelViewPresenter.dll
ExampleProject.Contracts.dll
ExampleProject.Model.dll
Properties
ExampleProject.Presenters
bin
Debug
CobaltSoftware.Foundation.ModelViewPresenter.dll
ExampleProject.Contracts.dll
ExampleProject.Presenters.dll
Properties
ExampleProject.Views
bin
Debug
CobaltSoftware.Foundation.ModelViewPresenter.dll
ExampleProject.Contracts.dll
ExampleProject.Views.dll
Properties
CobaltSoftware.Foundation.ModelViewPresenter
bin
Debug
CobaltSoftware.Foundation.ModelViewPresenter.dll
Core
Properties
Support
ExampleProject.Application
bin
Debug
CobaltSoftware.Foundation.ModelViewPresenter.dll
ExampleProject.Application.exe
ExampleProject.Application.vshost.exe
ExampleProject.Application.vshost.exe.manifest
ExampleProject.Contracts.dll
ExampleProject.Model.dll
ExampleProject.Presenters.dll
ExampleProject.Views.dll
Properties
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace CobaltSoftware.Foundation.ModelViewPresenter
{
    /// <summary>
    ///     The IPresenter interface defines an active presenter in the Model-View-Presenter
    ///     pattern. The presenter maintains and controls multiple views, which are introduced
    ///     to it by an orchestration mechanism. As each view is registered the presenter will
    ///     attach to appropriate events on it and also push changed state into it. Whenever another
    ///     view of the presenter raises an event, it is the duty of the preseter to effectively
    ///     multicast these events to other listening views.
    /// </summary>
    /// <remarks>
    ///     <para>
    ///         <list>
    ///             <listheader>Version History</listheader>
    ///             <item>10 October, 2009 - Steve Gray - Initial Draft</item>
    ///         </list>
    ///     </para>
    ///     <para>
    ///         This implementation uses self-constrained generics to allow
    ///         bi-directional strong coupling of interface types for both
    ///         presenter and view, allowing mutual strong references.
    ///     </para>
    /// </remarks>
    /// <typeparam name="TPresenterContract">Presenter contract type</typeparam>
    /// <typeparam name="TViewContract">View contract type</typeparam>
    public interface IPresenter<TPresenterContract, TViewContract>
        where TPresenterContract : IPresenter<TPresenterContract, TViewContract>
        where TViewContract : IView<TViewContract, TPresenterContract>
    {
        /// <summary>
        ///     Connect a view to this presenter.
        /// </summary>
        /// <param name="viewInstance">View instance</param>
        /// <param name="requiresState">Requires initial state to be pushed into view.</param>
        void ConnectView(TViewContract viewInstance, bool requiresState);

        /// <summary>
        ///     Disconnect a view from this presenter.
        /// </summary>
        /// <param name="viewInstance">View instance</param>
        void DisconnectView(TViewContract viewInstance);
    }
}

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

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About the Author

Steven James Gray
Software Developer (Senior) Insurance Industry
United Kingdom United Kingdom
Steve Gray is a Senior Developer at a British insurance company, working on a popular aggregator. When he's not writing ASP .NET, it's because there's SQL or WCF to write instead.

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