Question

我有字符串问题和选项列表。我可以轻松地向DB添加问题。问题是，我无法找出添加该问题答案选项的方法。

ApplicationDbContext

    public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
        : base(options)
    {
    }

    public DbSet<Question> Questions { get; set; }
    public DbSet<Option> Options { get; set; }

    protected override void OnModelCreating(ModelBuilder builder)
    {
        base.OnModelCreating(builder);
    }
}

Question.cs Model

    public class Question
{
    public int Id{ get; set; }
    public string Content { get; set; }
    public virtual List<Option> Options { get; set; }
}

Option.cs Model

public class Option
{
    public int Id { get; set; }
    public string Content { get; set; }
    public List<Option> OptionList; //Couldn't figure out how to use it yet. 
}

QuestionController（删除与我的问题无关的部分）

public class QuestionController : Controller
{
    private readonly ApplicationDbContext _context;

    public QuestionController(ApplicationDbContext context)
    {
        _context = context;
    }
    [HttpGet("add")]
    public IActionResult AddQuestion()
    {
        return View();
    }

    [HttpPost("add")]
    public IActionResult AddQuestion(Question model, Option option)
    {
        _context.Questions.Add(model);

        _context.Options.Add(option);
        _context.SaveChanges();
        return View(model);
    }
}

AddQuestion视图

<form asp-controller="Question" asp-action="AddQuestion" method="post">
    <input type="hidden" asp-for="Id" />
    <label asp-for="Content"></label>
    <input asp-for="Content" type="text" />
    <input asp-for="OptionList" type="text" />    
    <button class="btn btn-success">Submit</button>
</form>

我想添加选项，按提交后，必须将其添加到DB中的问题。

如何将List和单独的字符串添加到数据库？

0 个答案: