What are some examples of model binding in ASP.NET using attributes?

What are some examples of model binding in ASP.NET using attributes?

In ASP.NET MVC, model binding allows you to map HTTP request data to action method parameters. For example, you can use attributes like [FromBody] to bind data from the request body to a model.

Can you give me a specific code example?

Sure! Here's a simple example:

public class Product {
    public int Id { get; set; }
    public string Name { get; set; }
}

[HttpPost]
public IActionResult Create([FromBody] Product product) {
    if (ModelState.IsValid) {
        // Save product to database
        return Ok();
    }
    return BadRequest(ModelState);
}

What other attributes can I use for model binding?

You can use attributes like [FromQuery], [FromRoute], and [FromForm] to specify where to bind the data from. Each serves a different purpose depending on the source of the data.

How does model binding handle validation?

Model binding integrates with ASP.NET's validation framework. If the model state is invalid, you can access the errors through ModelState, allowing you to return appropriate feedback to the user.