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    <p>Model View Presenter and Model View Controller both try to solve the same "seperation of concerns" problem.</p> <p>The primary difference you'll find is that Model View Controller (MVC) is often implemented with some coupling between the view and some model of some sort - thereby a given view is specifically purposed to provide a visualization of a given object (model).</p> <p>In the Model View Presenter pattern you generally find that the Presenter takes care of working with the model, and deciding what information from it will be needed to form some sort of visualization. </p> <p>In this diagram, arrows represent dependencies:</p> <p><img src="https://imgur.com/xbeB5.png" alt="MVC and MVP dependencies"></p> <p>Typically you hear this pattern discussion come up when discussing the ASP.NET MVC framework, and come across information regarding the MVP pattern and it's implementation in ASP.NET WebForms. It is common in my experience that it is believed that WebForms is in and of itself an MVP patterned framework - this is not true. WebForms does however make it very easy to implement an MVP pattern - your best resource for this would be to investigate the Web Client Software Factory from the Patterns and Practices team:</p> <p>CodePlex site: <a href="http://www.codeplex.com/websf" rel="noreferrer">http://www.codeplex.com/websf</a></p> <p>A great screencast covering the topic: <a href="http://www.pnpguidance.net/Screencast/MVPBundleScreencastWCSFModelViewPresenterDesignPattern.aspx" rel="noreferrer">http://www.pnpguidance.net/Screencast/MVPBundleScreencastWCSFModelViewPresenterDesignPattern.aspx</a></p>
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    1. POWhat is Model View Presenter?
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    1. USapiguy
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    1. COI'm not sure those dependency arrows are right. In MVC, why does the View have a dependency on the Model?
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      1. USCameron MacFarland
    2. COIt certainly doesn't *have* to be, however this is the more common implementation. For example, if you use ASP.NET MVC the best practice is to make your "view" dependent on a type (creating a strongly typed view). Typical MVC implementations send a model to a view, then let the view decide what to do with it (thereby creating a dependency), whereas in MVP the View will literally ask the presenter "What data should I put in this textbox."
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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