Question

我正在使用asp.net mvc，我的要求如下

上传任何Excel文件
删除所有Excel文件
编辑任何Excel文件

为此，我跟随tutorial，我可以执行1和2步骤。但对于步骤3，我只能编辑Name和Description，如链接所示

现在我想要的是，每当我点击edit时，应该打开所选的excel文件，用户可以编辑并保存，保存的文件应该在同一个位置。

我的create操作代码如下：

  public ActionResult Create(Support support)
    {
        if (ModelState.IsValid)
        {
            List<FileDetail> fileDetails = new List<FileDetail>();
            for (int i = 0; i < Request.Files.Count; i++)
            {
                var file = Request.Files[i];

                if (file != null && file.ContentLength > 0)
                {
                    var fileName = Path.GetFileName(file.FileName);
                    FileDetail fileDetail = new FileDetail()
                    {
                        FileName = fileName,
                        Extension = Path.GetExtension(fileName),
                        Id = Guid.NewGuid()
                    };
                    fileDetails.Add(fileDetail);

                    var path = Path.Combine(Server.MapPath("~/App_Data/Upload/"), fileDetail.Id + fileDetail.Extension);
                    file.SaveAs(path);
                }
            }

            support.FileDetails = fileDetails;
            db.Supports.Add(support);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        return View(support);
    }

贝娄是我create

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

<fieldset>
    <legend>Create Support Request</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.Summary)
    </div>
    <div class="editor-field">
        @Html.TextAreaFor(model => model.Summary)
        @Html.ValidationMessageFor(model => model.Summary)
    </div>
    <div class="editor-label">
        <label>Files:</label>
    </div>
    <div class="editor-field">
        <input type="file" name="file" multiple="multiple" />
    </div>
    <p>
        <input type="submit" value="Create" />
    </p>
</fieldset>
}
<div>
  @Html.ActionLink("Back to List", "Index")
</div>

Bellow是我edit

  [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Edit(Support support)
    {
        if (ModelState.IsValid)
        {

            //New Files
            for (int i = 0; i < Request.Files.Count; i++)
            {
                var file = Request.Files[i];

                if (file != null && file.ContentLength > 0)
                {
                    var fileName = Path.GetFileName(file.FileName);
                    FileDetail fileDetail = new FileDetail()
                    {
                        FileName = fileName,
                        Extension = Path.GetExtension(fileName),
                        Id = Guid.NewGuid(),
                        SupportId = support.SupportId
                    };
                    var path = Path.Combine(Server.MapPath("~/App_Data/Upload/"), fileDetail.Id + fileDetail.Extension);
                    file.SaveAs(path);

                    db.Entry(fileDetail).State = EntityState.Added;
                }
            }

            db.Entry(support).State = EntityState.Modified;
            db.SaveChanges();
            return RedirectToAction("Index");
        }
        return View(support);
    }
public ActionResult Edit(int? id)
    {
        if (id == null)
        {
            return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
        }
        Support support = db.Supports.Include(s => s.FileDetails).SingleOrDefault(x => x.SupportId == id);
        if (support == null)
        {
            return HttpNotFound();
        }
        return View(support);
    }

Bellow是我用于编辑的剃刀语法

@model MultipleFileUpload.Models.Support
 @{
   ViewBag.Title = "Edit";
  }

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

<fieldset>
    <legend>Edit Support Request</legend>
    @Html.HiddenFor(model => model.SupportId)
    <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.Summary)
    </div>
    <div class="editor-field">
        @Html.TextAreaFor(model => model.Summary)
        @Html.ValidationMessageFor(model => model.Summary)
    </div>
    <div class="editor-label">
        <label>Files:</label>
    </div>
    <div class="editor-field">
        <input type="file" name="file" multiple="multiple" />
        <ul class="attachment">
            @foreach (var item in Model.FileDetails)
            {
                <li>
                    <a class="title" href="/Support/Download/?p=@(item.Id + item.Extension)&d=@item.FileName">@item.FileName</a>
                    <a href="javascript:void(0);" data-id="@item.Id" class="deleteItem">X</a>
                </li>
            }
        </ul>
    </div>
    <p>
        <input type="submit" value="Save" />
    </p>
</fieldset>
  }
  <div>
   @Html.ActionLink("Back to List", "Index")
  </div>

在编辑剃须刀中，我有一个delete选项，所以bellow是我的删除脚本

 @section Scripts 
     {
     <script src="~/Scripts/jquery.validate.min.js"></script>
     <script src="~/Scripts/jquery.validate.unobtrusive.min.js"></script>
     <script>
            $('.deleteItem').click(function (e) {
                 e.preventDefault();
        var $ctrl = $(this);
        if (confirm('Do you really want to delete this file?')) {
            $.ajax({
                url: '@Url.Action("DeleteFile")',
                type: 'POST',
                data: { id: $(this).data('id') }
            }).done(function (data) {
                if (data.Result == "OK") {
                    $ctrl.closest('li').remove();
                }
                else if (data.Result.Message) {
                    alert(data.Result.Message);
                }
                 }).fail(function () {
                alert("There is something wrong. Please try again.");
              })
          }
      });
</script>
}

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打开excel文件，在asp.net MVC中进行编辑

0 个答案: