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Encapsulating user controls in ASP.NET MVC

Sorry if this is the main question - I am having trouble moving to ASP.NET MVC from the page frame.

In the page structure, I often use ASCX files to create small encapsulated pieces of functionality that can be included in various places on the site. If I am building a page and I need one of these controls - I just add a link and everything just works.

As far as I can tell, in MVC, an ASCX file is only a partial representation. Does this mean that wherever I want to add one of these units of functionality, I also need to add code to the controller action method to make sure that the corresponding ViewData is available for ASCX?

If so, it seems to me that this is a little step back. This means, for example, that I could not simply “drop” the control onto the main page without having to add code for each controller whose views use this main page!

I suspect I am missing something - any help would be appreciated.

Thank you, Chris

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As far as I can tell, in MVC, an ASCX file is only a partial representation. Does this mean that wherever I want to add one of these units of functionality I also need to add code to the controller action method to make sure that the corresponding ViewData is available for ASCX?

Yes.

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Google "renderaction and renderpartial" for more information.

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