ASP.NET MVC视图中的持久ID

时间:2012-06-06 08:45:09

标签: asp.net-mvc jquery razor asp.net-ajax partial-views

基本上我有一个Image Upload控制器,我在页面中插入如下: -

    <div id='imageList'>
    <h2>Upload Image(s)</h2>
    @{
        if (Model != null)
        {
            Html.RenderPartial("~/Views/File/ImageUpload.cshtml", new MvcCommons.ViewModels.ImageModel(Model.Project.ProjectID));
        }  
        else
        {
            Html.RenderPartial("~/Views/File/ImageUpload.cshtml", new MvcCommons.ViewModels.ImageModel(0));
        }
    }
</div>

所以我将ID传递给ImageUpload,在本例中为ProjectID,以便我可以将其包含在我的插入中。

现在这段代码正在填充ImageModel(id),在我的例子中是ProjectID: -

    public ImageModel(int projectId)
    {
        if (projectId > 0)
        {
            ProjectID = projectId;
            var imageList = unitOfWork.ImageRepository.Get(d => d.ItemID == projectId && d.PageID == 2);
            this.AddRange(imageList);
        }
    }

这反过来导致ImageUploadView.cshtml: -

<table>
@if (Model != null)
{
  foreach (var item in Model)
  {
     <tr>
        <td>
          <img src= "@Url.Content("/Uploads/" + item.FileName)" />
        </td>
        <td>
          @Html.DisplayFor(modelItem => item.Description)
        </td>
    </tr>    
 }
}
</table>

@using (Html.BeginForm("Save", "File", new { ProjectID = Model.ProjectID }, 
       FormMethod.Post, new { enctype = "multipart/form-data" }))

{
    <input type="file" name="file" />
    <input type="submit" value="submit" /> <br />
    <input type="text" name="description" /> 
}

到目前为止一直很好,但我的问题是第一次

new { ProjectID = Model.ProjectID }
使用ProjectID正确填充

,但是,当我上传图像时,ProjectID将丢失,并变为零。有没有办法可以第二次坚持ProjectID?

Thansk的帮助和时间。

** * ** * ** * 更新 * ** * ** * ** * ** * ** * ** * ** * *** 上传后,FileController中的Action如下: -

        public ActionResult Save(int ProjectID)
    {
        foreach (string name in Request.Files)
        {
            var file = Request.Files[name];

            string fileName = System.IO.Path.GetFileName(file.FileName);
            Image image = new Image(fileName, Request["description"]);

            ImageModel model = new ImageModel();
            model.Populate();
            model.Add(image, file);
        }
        return RedirectToAction("ImageUpload");
    }

1 个答案:

答案 0 :(得分:1)

您可以将projectId作为RedirectToAction的路线值传递。您应该更改ImageUpload操作以接受projectId

public ActionResult Save(int projectId)
{
  ....
  return RedirectToAction("ImageUpload", new { projectId = projectId });
}

public ActionResult ImageUpload(int projectId)
{
   var model = .. get the model from db based on projectId
   return View("view name", model);   
}