Models in ASP.NET Core MVC

Models, in ASP.NET Core MVC, are used for defining the structure and behavior of data of an application. It defines how the data is stored, retrieved, and manipulated.

Syntax

In ASP.NET Core MVC, a model is represented as a class that contains properties that define the structure of data. Following is the syntax for creating a model:

public class ModelClassName
{
    public DataType PropertyName1 {get; set;}
    public DataType PropertyName2 {get; set;}
    // .....
}

Example

Let's consider an example of a model named Product with properties Id, Name, Price, and InStock:

public class Product
{
    public int Id { get; set; }
    public string Name { get; set; }
    public decimal Price { get; set; }
    public bool InStock { get; set; }
}

Explanation

Models act as a blueprint for creating and managing data in an ASP.NET Core MVC application. The properties of a model correspond to the fields in a database table or a document in a NoSQL database. Models also help in validating incoming data.

The get and set keywords define the accessors for the properties in the model. In the above example, we have defined four properties in the Product class. Id is an integer property, Name is a string property, Price is a decimal property, and InStock is a boolean property.

Use

Models are widely used in an ASP.NET Core MVC application for data modeling, manipulating, and storing. Models can have one-to-one or one-to-many relationships among each other.

Models are used to validate the incoming data from requests. They can also be used to define data annotations, which help in validating data against specific conditions.

Important Points

• Models are used to specify the structure and behavior of data in an application.
• Models can have one-to-one or one-to-many relationships.
• Accessors in a model are defined using get and set keywords.
• Models can define data annotations for validation purposes.

Summary

In this page, we discussed models in ASP.NET Core MVC. We saw the syntax and an example of creating a model in ASP.NET Core MVC. We have also explained their significance, use cases, and important points. A good understanding of models is essential for building and managing an ASP.NET Core MVC application.