Question 87720 in ASP.NET Question posted in
The official documentation can be found here.

How to solve this ASP.NET MVC data null constructor warning on DbContext?

Screenshot of My Code

The following code is from the official MS documentation; I followed as same for to solve this warning issues.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using MvcMovie.Models;

namespace MvcMovie.Data
{
    public class MvcMovieContext : DbContext
    {
        public MvcMovieContext (DbContextOptions<MvcMovieContext> options)
            : base(options)
        {
        }

        public DbSet<MvcMovie.Models.Movie> Movie { get; set; }
    }
}

official MS Documents

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3

Answers


  1. 0

    In you MvcMovieContext class, instread that :

    public DbSet<MvcMovie.Models.Movie> Movie { get; set; }

    Simply do that :

    public DbSet<MvcMovie.Models.Movie>? Movie { get; set; }

    And it’s done. Otherwise tell me if it doesn’t work.

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  2. 0

    in the document link you posted , you should have founnd this warning

    "To eliminate the warnings from nullable reference types, REMOVE the following line from the MvcMovie.csproj file "

    <Nullable>enable</Nullable>
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  3. 0

    The best way remove this line in .csproj => Nullable enable Nullable
    If you do like this :

    public DbSet<MvcMovie.Models.Movie>? Movie { get; set; }

    It will Warning in other files

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