将 datetime2 数据类型转换为 datetime 数据类型导致值超出范围。该语句已终止

Question

我的模型中有以下代码

public int Id { get; set; }

    [Required]
    [StringLength(255)]
    public string Name { get; set; }

    public DateTime DateAdded { get; set; }

    [Display(Name = "Release Date")]
    public DateTime ReleaseDate { get; set; }

    [Display(Name = "Number in Stock")]
    public byte NumberInStock { get; set; }

    public Genre Genre { get; set; }

    [Display(Name = "Genre")]
    [Required]
    public byte GenreId { get; set; }

这是我的控制器编码器错误点显示

[HttpPost]
    public ActionResult Create(Movie movie)
    {
        _context.Movies.Add(movie);
        _context.SaveChanges();

        return RedirectToAction("Index", "Movies");
    }

这就是风景

<div class="form-group">
    @Html.LabelFor(m => m.Movie.ReleaseDate)
    @Html.TextBoxFor(m => m.Movie.ReleaseDate, "{0:d MMM yyyy}", new { @class = "form-control" })
</div>
<div class="form-group">
    @Html.LabelFor(m => m.Movie.GenreId)
    @Html.DropDownListFor(m => m.Movie.GenreId, new SelectList(Model.Genres, "Id", "Name"), "Select Movie Genre", new { @class = "form-control" })
</div>
<div class="form-group">
    @Html.LabelFor(m => m.Movie.NumberInStock)
    @Html.TextBoxFor(m => m.Movie.NumberInStock, new { @class = "form-control" })
</div>

<button type="submit" class="btn btn-primary">Save</button>

当我点击提交按钮时，我得到一个错误：

将 datetime2 数据类型转换为 datetime 数据类型导致值超出范围。

对这个问题有任何想法吗？我假设这是一个日期时间问题，但我无法解决问题。我是这方面的初学者。

Answer 1

日期时间列“DateAdded”在 sql 中标记为 Not Nullable。

选项 1（更改控制器）：

[HttpPost]
public ActionResult Create(Movie movie)
{
    //setdate
    movie.DateAdded = Datetime.Now;
    _context.Movies.Add(movie);
    _context.SaveChanges();

    return RedirectToAction("Index", "Movies");
}

选项 2（更改模型）

public class Movie 
{
    public int Id { get; set; }

    [Required]
    [StringLength(255)]
    public string Name { get; set; }

    public DateTime DateAdded { get; set; } = Datetime.Now;

    [Display(Name = "Release Date")]
    public DateTime ReleaseDate { get; set; }

    [Display(Name = "Number in Stock")]
    public byte NumberInStock { get; set; }

    public Genre Genre { get; set; }

    [Display(Name = "Genre")]
    [Required]
    public byte GenreId { get; set; }
}