FYI :https://blogs.msdn.microsoft.com/webdev/2013/10/16/customizing-profile-information-in-asp-net-identity-in-vs-2013-templates/
1：新建ASP.NET MVC项目，并运行该默认的示例项目，
2：启动Entity Framework Migrations
打开Package Manger Console: Tools->Library Package Manager->Package Manager Console
在控制面板输入命令Enable-Migrations后回车
3：修改默认的认证Model类 Models\IdentityModels.cs中的类ApplicationUser
???public class ApplicationUser : IdentityUser ???{ ???????public string Address { get; set; } ???????public string Email { get; set; } ???????public DateTime BirthDate { get; set; } ???}并在该类的头部添加using System;
4：同步数据库
如果不同步数据库，则运行项目时会报错，因为默认的认证数据库已经生成，对应的表结构已经存在。
运行命令Add-Migration "Birthdate"
运行命令Update-Database
数据库表结构成功更新
5：修改视图Model AccountViewModels.cs
???public class RegisterViewModel ???{ ???????[Required] ???????[Display(Name = "User name")] ???????public string UserName { get; set; } ???????[Required] ???????[StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 6)] ???????[DataType(DataType.Password)] ???????[Display(Name = "Password")] ???????public string Password { get; set; } ???????[DataType(DataType.Password)] ???????[Display(Name = "Confirm password")] ???????[Compare("Password", ErrorMessage = "The password and confirmation password do not match.")] ???????public string ConfirmPassword { get; set; } ???????[Required] ???????public string Address { get; set; } ???????[Required] ???????public string Email { get; set; } ???????[Required] ???????[Display(Name="Birth Date")] ???????public DateTime BirthDate { get; set; } ???}6：修改Account视图Register.cshtml
@model Bycle.Models.RegisterViewModel@{ ???ViewBag.Title = "Register";}<h2>@ViewBag.Title.</h2>@using (Html.BeginForm("Register", "Account", FormMethod.Post, new { @class = "form-horizontal", role = "form" })){ ???@Html.AntiForgeryToken() ???<h4>Create a new account.</h4> ???<hr /> ???@Html.ValidationSummary() ???<div class="form-group"> ???????@Html.LabelFor(m => m.UserName, new { @class = "col-md-2 control-label" }) ???????<div class="col-md-10"> ???????????@Html.TextBoxFor(m => m.UserName, new { @class = "form-control" }) ???????</div> ???</div> ???<div class="form-group"> ???????@Html.LabelFor(m => m.Password, new { @class = "col-md-2 control-label" }) ???????<div class="col-md-10"> ???????????@Html.PasswordFor(m => m.Password, new { @class = "form-control" }) ???????</div> ???</div> ???<div class="form-group"> ???????@Html.LabelFor(m => m.ConfirmPassword, new { @class = "col-md-2 control-label" }) ???????<div class="col-md-10"> ???????????@Html.PasswordFor(m => m.ConfirmPassword, new { @class = "form-control" }) ???????</div> ???</div> ???<div class="form-group"> ???????@Html.LabelFor(m => m.Address, new { @class = "col-md-2 control-label" }) ???????<div class="col-md-10"> ???????????@Html.TextBoxFor(m => m.Address, new { @class = "form-control" }) ???????</div> ???</div> ???<div class="form-group"> ???????@Html.LabelFor(m => m.Email, new { @class = "col-md-2 control-label" }) ???????<div class="col-md-10"> ???????????@Html.TextBoxFor(m => m.Email, new { @class = "form-control" }) ???????</div> ???</div> ???<div class="form-group"> ???????@Html.LabelFor(m => m.BirthDate, new { @class = "col-md-2 control-label" }) ???????<div class="col-md-10"> ???????????@Html.TextBoxFor(m => m.BirthDate, new { @class = "form-control" }) ???????</div> ???</div> ???????????????<div class="form-group"> ???????<div class="col-md-offset-2 col-md-10"> ???????????<input type="submit" class="btn btn-default" value="Register" /> ???????</div> ???</div>}@section Scripts { ???@Scripts.Render("~/bundles/jqueryval")}7：修改控制器Register
???????public async Task<ActionResult> Register(RegisterViewModel model) ???????{ ???????????if (ModelState.IsValid) ???????????{ ???????????????var user = new ApplicationUser() { UserName = model.UserName ,BirthDate=model.BirthDate,Address=model.Address,Email=model.Email}; ???????????????var result = await UserManager.CreateAsync(user, model.Password); ???????????????if (result.Succeeded) ???????????????{ ???????????????????await SignInAsync(user, isPersistent: false); ???????????????????return RedirectToAction("Index", "Home"); ???????????????} ???????????????else ???????????????{ ???????????????????AddErrors(result); ???????????????} ???????????} ???????????// If we got this far, something failed, redisplay form ???????????return View(model); ???????}8：运行项目，可以看到注册界面新增了三个字段。
- Add-Migration "Birthdate"
MVC修改默认的注册信息Model
原文地址：https://www.cnblogs.com/yuanhaowen/p/9627678.html