Question

我正在尝试在数据库中保存图像路径，并在文件系统中保存实际图像。文件被完美复制但它的源不会被插入到数据库中，它在ModelState.IsValid函数中始终为空

这是我的电影课

public class Movie
{
      [Key]
      [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
      public int MovieId { get; set; } 

      [Required(ErrorMessage = "Name is required")]
      public string Name { get; set; }

      [Required(ErrorMessage = "Genre is required")]
      public string Genre { get; set; }

      [Required(ErrorMessage = "Rating is required")]
      public int Rating { get; set; }

      [Required(ErrorMessage = "Description is required")]
      public string Description { get; set; }

      [Required(ErrorMessage = "Date is required")]
      [DataType(DataType.Date)]
      public DateTime ReleaseDate { get; set; }

      [Required(ErrorMessage = "Image is required")]
      public string  ImageSource { get; set; }
}

这是我的创建视图

@using (Html.BeginForm("Create","Movies",FormMethod.Post,new { enctype = "multipart/form-data" })) {
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)

    <fieldset>
        <legend>Movie</legend>

        <div class="editor-label">
            @Html.LabelFor(model => model.Name)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Name)
            @Html.ValidationMessageFor(model => model.Name)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Genre)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Genre)
            @Html.ValidationMessageFor(model => model.Genre)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Rating)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Rating)
            @Html.ValidationMessageFor(model => model.Rating)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.Description)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.Description)
            @Html.ValidationMessageFor(model => model.Description)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.ReleaseDate)
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => model.ReleaseDate)
            @Html.ValidationMessageFor(model => model.ReleaseDate)
        </div>

        <div class="editor-label">
            @Html.LabelFor(model => model.ImageSource)
        </div>
        <div class="editor-field">

            <input type="file" name="uploadImages" multiple="multiple" class="input-files" />

            @Html.ValidationMessageFor(model => model.ImageSource)
        </div>
        <p>
            <input type="submit" value="Create" />
        </p>
    </fieldset>
}

这是我的行动方法

[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(Movie movie)
{
            foreach (string file in Request.Files)
            {
                var postedFiles = Request.Files[file];
                postedFiles.SaveAs(Server.MapPath("~/Content/Images/") + Path.GetFileName(postedFiles.FileName));

            }

            db.Movies.Add(movie);
            db.SaveChanges();

            return RedirectToAction("Index");
}

ImageSource始终为null，并导致一个或多个实体出现验证错误。

Answer 1

您没有在任何地方分配ImageSource，要么从模型中删除ImageSource并使用文件名（或完整路径）将其写入数据库。

或使用javascript将文件名分配给ImageSource。

编辑：或者只是从ImageSource中删除Required属性。

尝试在数据库和映像文件系统中保存图像源时的验证错误

1 个答案: