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Web開發新手。 我有一個允許用戶選擇一個excel文件的視圖。 當提交「預覽」按鈕時,文件被讀取並且數據被髮回給用戶以預覽數據。 然後,我希望能夠將模型發送回數據庫上傳控件。 (這是我正在努力的部分)。如何在asp.net中將複雜模型傳遞迴控制器mvc
視圖模型:
public class UploadItemsViewModel
{
public List<Item> Items { get; set; }
public int CompanyID { get; set; }
public Company Company { get; set; }
public HttpPostedFileBase upload { get; set; }
public UploadJournalsViewModel()
{
Items = new List<Item>();
}
}
控制器:
public ActionResult Upload(FormCollection formCollection, int CompanyID)
{
if (Request != null)
{
HttpPostedFileBase file = Request.Files["UploadedFile"];
if ((file != null) && (file.ContentLength > 0) && !string.IsNullOrEmpty(file.FileName))
{
string fileName = file.FileName;
string fileContentType = file.ContentType;
byte[] fileBytes = new byte[file.ContentLength];
var data = file.InputStream.Read(fileBytes, 0, Convert.ToInt32(file.ContentLength));
}
}
UploadItemsViewModel itmViewModel = new UploadItemsViewModel { Company = db.Companies.Find(CompanyID), CompanyID = CompanyID };
return View(itmViewModel);
}
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Upload(UploadItemsViewModel itmViewModel, string Preview, string Upload)
{
if (ModelState.IsValid)
{
if (itmViewModel.upload != null && itmViewModel.upload.ContentLength >0)
{
try
{
itmlViewModel.Items = App.Services.ItemsMassUploadFileRead.ReadExcelFile(itmViewModel.upload, db.Companies.Find(itmViewModel.CompanyID));
if (string.IsNullOrEmpty(Preview))
{
foreach (var itm in itmViewModel.Items)
{
itm.StartDate = DateTime.Today;
itm.CompanyID = itmViewModel.CompanyID;
itm.User = null;
itm.Items.Add(itm);
db.SaveChanges();
}
return View();
}
else
{
return View(itmViewModel);
}
} }
catch (Exception ex)
{
ModelState.AddModelError("File", ex.Message.ToString());
return View(itmViewModel);
}
}
else
{
ModelState.AddModelError("File", "Please Upload Your file");
}
}
return View(itmViewModel);
}
檢視:
@using (Html.BeginForm("Upload", "ItemsUpload", null, FormMethod.Post, new { enctype = "multipart/form-data" }))
{@ Html.AntiForgeryToken() @ Html.HiddenFor(型號=> model.CompanyID )
<div class="form-group">
<div class="input-group">
<label class="input-group-btn">
<span class="btn btn-default">
Browse… <input type="file" style="display: none;" accept=".xlsx" name="upload">
</span>
</label>
<input type="text" class="form-control " readonly>
</div>
<span class="help-block">
Please use a provided Excel template
</span>
</div>
<div class="form-group">
<input type="submit" value="Preview" name ="Preview" class="btn btn-default" disabled style="display: none" id="submit"/>
</div>
<div class="form-group">
<input type="submit" value="Upload" name="Upload" class="btn btn-default" id="Upload" />
</div>
<div class="help-block" id="previewHelp" style="display: none">
Preview results and scroll down to upload data to the database.
</div>
if (Model.Journals.Count != 0)
{
table here to preview the upload
}
點擊上傳按鈕模型後,沒有「items」集合。
你要渲染要張貼回的所有數據''元素呈現在視圖中的任何輸入。請參閱http://stackoverflow.com/q/16321736/1450855關於如何正確地列出POST列表,以便MVC模型綁定器取消它們。 –
謝謝。使用這個管理解決問題。 – GlutVonSmark