How to Customize ASP.NET Identity Table Names?

Customizing ASP.NET Identity Table Names

ASP.NET Identity uses default table names prefixed with "AspNet." This article shows how to customize these names to fit your application's naming conventions.

Method 1: Extending the Identity Model

To alter table names, extend the IdentityModel.cs file and override the OnModelCreating method within your DbContext. Use EntityTypeConfiguration<T> to define custom table names.

<code class="language-csharp">protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
    base.OnModelCreating(modelBuilder);

    modelBuilder.Entity<IdentityUser>().ToTable("MyUsers");
    modelBuilder.Entity<ApplicationUser>().ToTable("MyUsers"); // If ApplicationUser extends IdentityUser
}</code>

Method 2: Directly Modifying the DbContext

Alternatively, directly modify your DbContext class:

<code class="language-csharp">public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext() : base("DefaultConnection") { }

    protected override void OnModelCreating(System.Data.Entity.DbModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);

        modelBuilder.Entity<IdentityUser>().ToTable("MyUsers");
        modelBuilder.Entity<ApplicationUser>().ToTable("MyUsers");
        modelBuilder.Entity<IdentityUserRole>().ToTable("MyUserRoles");
        modelBuilder.Entity<IdentityUserLogin>().ToTable("MyUserLogins");
        modelBuilder.Entity<IdentityUserClaim>().ToTable("MyUserClaims");
        modelBuilder.Entity<IdentityRole>().ToTable("MyRoles");
    }
}</code>

Both methods remove the "AspNet" prefix, allowing you to use your preferred table names. Choose the method that best suits your project structure.

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