在生产中首先使列可为空 EF 6 代码

Question

I have a web api application using sql server EF 6 code first approach and it's up and running.

Now for a table I want to make a column NULL.

From sql server database side I alter my table definition and able to make the column NULL.

But the class definition has [Required] attribute, which is the reason database save (with null value) still failing even I made database column NULL.

 [Required]
    [StringLength(512)]
    public string Name { get; set; }

I there any solution here?

I understand I need to remove [Required] attribute and this requires a code change. I am looking if some way without code change. this is production.

Answer 1

Removing Required attribute

[StringLength(512)]
public string Name {get;set;}