如何在mvc中的startup.cs中添加数据库中的数据

Question

我想将数据添加到用户定义的表中，即性别表。我从代码中添加角色，但角色表是在项目中内置的。下面是我的代码，我在startup.cs中通过代码在内置表中创建角色，但是如何在用户定义的表中添加数据。

public void Configuration(IAppBuilder app)
{
    ConfigureAuth(app);
    CreateRolesandUsers();
}

private void CreateRolesandUsers()
{
    ApplicationDbContext context = new ApplicationDbContext();

    var roleManager = new RoleManager<IdentityRole>(new RoleStore<IdentityRole>(context));
    var UserManager = new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(context));

    // In Startup I am creating first Admin Role and creating a default Admin User     
    if (!roleManager.RoleExists("Admin"))
    {
        // first we create Admin role
        var role = new IdentityRole();
        role.Name = "Admin";
        roleManager.Create(role);
    }

    //creating Creating Manager role
    if (!roleManager.RoleExists("Manager"))
    {                
        var role = new IdentityRole();
        role.Name = "Manager";
        roleManager.Create(role);
    }

    //creating Creating Judge role
    if (!roleManager.RoleExists("Judge"))
    {
        var role = new IdentityRole();
        role.Name = "Judge";
        roleManager.Create(role);
    }

    //creating Creating Police role
    if (!roleManager.RoleExists("Police"))
    {
        var role = new IdentityRole();
        role.Name = "Police";
        roleManager.Create(role);
    }

    //creating Creating Jailer role
    if (!roleManager.RoleExists("Jailer"))
    {
        var role = new IdentityRole();
        role.Name = "Jailer";
        roleManager.Create(role);
    }
}