Question

我是初学者对于MVC，我开发了我的图像上传脚本项目，我想在网格中显示我上传的图像，有些人需要将上传的图像替换为其他图像，我的代码不是工作正常，请帮助我，图片的模型

public  class MainGroup
  {
    [DataType(DataType.ImageUrl)]
      public string Image { get; set; }
}

查看 - 索引

<table style="border: 1px solid black;" cellpadding="10">
    <tr>
       <th>
            @Html.DisplayNameFor(model => model.Image)
        </th>
        <th>
        </th>
    </tr>
    @foreach (var item in Model)
    {
        <tr>


            <td valign="top">
                <img src="@Url.Content("~/Content/Uploaded/" + item.MainGroupID + "/" + item.Image + "")" alt="@item.MainGroupName" width="100px" height="100px" />
            </td>
            <td valign="top">
                @Html.ActionLink("Edit", "Edit", new { id = item.MainGroupID }, new { @class = "createActor", title = "Edit Actor" })
                |
                @Html.ActionLink("Delete", "Delete", new { id = item.MainGroupID })
            </td>
        </tr>
    }
</table>

创建-CHTML

        @using (@Html.BeginForm("Save", "MainGroup"))
        {

<div class="editor-field">
        <input type="file" name="imageFile" id="imageFile" />
        @Html.ValidationMessageFor(model => model.Image)
    </div>
            <div class="col-md-6" style="font-family:Arial, Helvetica, sans-serif; font-size:13px;"><b>Status</b></div>
            <div class="col-md-6">
                @Html.CheckBoxFor(a => a.StatusId)
            </div>

            <div class="col-md-6"></div> <div class="col-md-6"></div>

            <div class="col-md-6"></div>
            <div class="col-md-6">   <input type="submit" id="btn" value="Save" class="btn btn-success" /> </div>
        }
    </div>

}

控制器

 public class MainGroupController : Controller
    {
        // GET: Masters/MainGroup

        public ActionResult Save(MainGroup maingroup)
        {
            if (ModelState.IsValid)
            {
                var objContext = new KnittingdbContext();
                maingroup.CreateId = 1;
                maingroup.StatusChangeDate = System.DateTime.Now;
                maingroup.CreatedDate = System.DateTime.Now;
                maingroup.EditId = 1;
                maingroup.EditDate = System.DateTime.Now;
                objContext.MainGroups.Add(maingroup);

                objContext.SaveChanges();

                TempData["Success"] = "Saved Sucessfully";

                return RedirectToAction("MainGroupIndex", new { A = "New" });
            }





            else
            {
                return PartialView("_MainGroupCreate", maingroup);
            }


        }

Answer 1

您可以将文件定义为HttpFileBase属性以保存文件，然后在post方法（保存）中将文件移动到＆＃34;〜/ Content / Uploaded /＆＃34;。然后试试。如果图像文件可用，您也可以手动检查目录

public  class MainGroup
{
  [DataType(DataType.ImageUrl)]
  public string Image { get; set; }

  public HttpFileBase ImageFile { get; set; }

 }

public class MainGroupController：Controller { // GET：Masters / MainGroup

    public ActionResult Save(MainGroup maingroup)
    {
        if (ModelState.IsValid)
        {
            // You can add other logic also
            if(maingroup.ImageFile!= null && maingroup.ImageFile.ContentLength > 0)
            {
               string filePath = "~/Content/Uploaded/";
               string imageUrl = System.IO.Path.Combine(filePath, maingroup.ImageFile.File.FileName);
               var objContext = new KnittingdbContext();
               maingroup.CreateId = 1;
               maingroup.Image = imageUrl;
               maingroup.ImageFile.File.SaveAs(imageUrl));
               maingroup.StatusChangeDate = System.DateTime.Now;
               maingroup.CreatedDate = System.DateTime.Now;
               maingroup.EditId = 1;
               maingroup.EditDate = System.DateTime.Now;
               objContext.MainGroups.Add(maingroup);
               objContext.SaveChanges();
              TempData["Success"] = "Saved Sucessfully";


             }      

            return RedirectToAction("MainGroupIndex", new { A = "New" });
        }
        else
        {
            return PartialView("_MainGroupCreate", maingroup);
        }


    }

MVC上传图片不显示我的表格

1 个答案: