Default value in mvc model using data annotation

Question

Is it possible using data annotations to add default value for int property

something like

[DefaultValue=1]
public int MyId {get; set;}

Answer 1

You can only do this using the class' constructor. Your code should thus look like this:

public class MyModel
{
    public MyModel()
    {
        MyId = 1;
    }

    public int MyId {get; set;}
}

This will lead to the MyId property being set to 1 whenever a new instance of the class is made. However, if model binding detects that the user has specified a value for MyId, it will overwrite the default value with the user-specified one.