How to use DevExpress ORM (XPO) in an ASP.NET MVC application

ASP.NET Team Blog
25 August 2011

imageCheck out the how-to knowledgebase article below that shows you 2 different approaches to using the eXpress Persisent Objects (XPO) with an ASP.NET MVC application:

How to use XPO in an ASP.NET MVC application


The article will be most useful if you are already using DevExpress XPO. If you're new to DevExpress XPO then check out the Code Central solution attached to this article:

Example: How to use XPO in ASP.NET MVC3 application (Razor)


It's a full working solution that shows how to use XPO with ASP.NET MVC. And there is a C# and VB.NET version of that sample available. Simply click the 'programming language' dropdown and choose.

Best Practices

If you're an XPO user now then you might have wondered, "What is the best practice for using XPO in an ASP.NET MVC application?"

This knowledgebase article is your answer:

The main difficulty of integrating the eXpress Persistent Objects framework into the ASP.NET MVC application is that both these frameworks have their own approaches to create a model instance. ASP.NET MVC requires a model to provide the parameter less constructor. It simply creates a new model instance each time it is required. XPO considers every object created via public constructors as new and inserts a new record in the database associated with this object. Hence, it is necessary to prevent the ASP.NET MVC engine from creating new instances and address this task manually. We will describe two possible approaches that can be used to address this issue.


Why use XPO?

If you've not yet seen XPO then check out this list of feature benefits here: XPO Features & Benefits

The M in ASP.NET MVC stands model and you have a choice to use just about any .NET ORM including our own XPO.


Check out the 'How to use XPO in an ASP.NET MVC application' article. Then drop me a line below with your thoughts on using XPO with ASP.NET MVC. Thanks.

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