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Asked: 2026-06-13T19:02:22+00:00

I’m not new to programming but am new to Visual Studio, MVC, C#, ASP.NET,

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I’m not new to programming but am new to Visual Studio, MVC, C#, ASP.NET, and EXT.NET, i.e. all of the tools I am trying to use.

I am trying to create an Ext.Net 2.0 MVC4 project and was given a similar (in functionality) non-MVC project for reference.

I see that this non-MVC project has .aspx and .aspx.cs files. It seems like the .aspx file basically maps to the “View” in MVC that I want to make… And the .aspx.cs file has the functions that relate to the .aspx file – so is that like the “Controller”? Though the .aspx file also has some functions that seem to not be entirely view-related…

Could someone give me a quick overview or a place to start with this?

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  1. Editorial Team

    ASPX files usually will have the UI and will which is usually HTML tags, some ASP.NET server control embed code (which ultimately produce some HTML markups). ASPX.CS file (usually called "code-behind") will have server-side coding in C#.

    If needed, I would relate ASPX page to View and ASPX.CS to Controller action methods.

    You have to remember that in webforms, there are ASP.NET controls we will be using in the ASPX file to render some HTML. Examples are TextBox, DataGrid, etc. In MVC, there is nothing called Server control. The View will be pure, handwritten HTML.

    If needed, you can create a Hybrid project which is a combination of MVC and webforms. Scott has a post explaining about it here.

    No ViewState in MVC 🙂

    When switching from ASP.NET Webforms to MVC, One important thing you have to understand is that MVC architecture tries to stick with the truth that HTTP is stateless. There is no viewstate available in MVC. So you need to make sure that you are repopulating the data in every HTTP Request, as needed. Folks usually run into problems in loading DropDownlist in MVC. There are a lot of answers here in SO about how to handle dropdown lists on postback (when form is posted).

    I suggest that you look into some beginner-level tutorials on ASP.NET MVC and start building your app step-by-step, and if you run into any issues, post a (new) question with relevant details.

    Good luck, and welcome to the wonderful world of MVC. 🙂

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