How does model binding work in ASP.NET MVC?

How does model binding work in ASP.NET MVC?

Model binding in ASP.NET MVC is the process of converting data from HTTP requests into .NET objects. It automatically maps form data, query strings, and route data to action method parameters.

Can you explain the different types of model binding?

Sure! There are several types of model binding: simple model binding, complex model binding, and custom model binding. Simple binding maps primitive types, while complex binding maps objects and collections.

What are some common issues with model binding?

Common issues include mismatched data types, missing required fields, and binding to complex types without proper initialization. It's important to validate the model state.

How can I create a custom model binder?

To create a custom model binder, implement the IModelBinder interface and override the BindModel method. Then, register your custom binder in the Global.asax file.