Whenever I talk to experiences ASP.NET Web Forms' developers(who recently started using ASP.NET MVC), I get one question quite often i.e. "How the values from HTML form(view) gets converted to the Model class when it reaches the Action method of the Controller class?". The answer to this question is that all this magic is being done by ASP.NET model binder. What Model binder does is that it takes the values coming from an HTML page and map it to a corresponding model. This is a very useful since it relieves the developers from writing all the "type casting" and "HTML-Model mapping" code. The Model binder is capable of retrieving the data from HTML form variables, POSTed variables and files, query string parameters and the values added in the routes. It might seem a very simple task that we could have done ourselves without the need of Model Binder but in fact this mapping, if done manually, can become very time consuming, cumbersome and error prone. In this article, we will try to implement a simple solution without utilizing the Model binding and then we will try to see how Model binding saves us from writing a lot of mundane code.


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