我有一个有效的表单上传,但我希望传递我的数据库的模型信息,以便使用不同的名称保存文件。
这是我的剃刀观点:
@model CertispecWeb.Models.Container
@{
ViewBag.Title = "AddDocuments";
}
<h2>AddDocuments</h2>
@Model.ContainerNo
@using (Html.BeginForm("Uploadfile", "Containers", FormMethod.Post,
new { enctype = "multipart/form-data" }))
{
<input type='file' name='file' id='file' />
<input type="submit" value="submit" />
}
这是我的控制器:
[HttpPost]
public ActionResult Uploadfile(Container containers, HttpPostedFileBase file)
{
if (file.ContentLength > 0)
{
var fileName = Path.GetFileName(file.FileName);
var path = Path.Combine(Server.MapPath("~/App_Data/Uploads"),
containers.ContainerNo);
file.SaveAs(path);
}
return RedirectToAction("Index");
}
模型信息不会传递给控制器。我已经读过,我可能需要更新模型,我该怎么做?
答案 0 :(得分:124)
您的表单不包含除文件之外的任何输入标记,因此在您的控制器操作中,除了上传的文件(这就是发送到服务器的所有内容)之外,您不能指望获得任何其他内容。实现此目的的一种方法是包含一个隐藏的标记,其中包含模型的ID,允许您从发布的控制器操作中的数据存储区中检索它(如果用户不应该修改模型,请使用此标记但只需附上一个文件):
@using (Html.BeginForm("Uploadfile", "Containers", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
@Html.HiddenFor(x => x.Id)
<input type="file" name="file" id="file" />
<input type="submit" value="submit" />
}
然后在你的控制器动作中:
[HttpPost]
public ActionResult Uploadfile(int id, HttpPostedFileBase file)
{
Containers containers = Repository.GetContainers(id);
...
}
另一方面,如果您想允许用户修改此模型,那么您需要为模型的每个字段包含要发送到服务器的正确输入字段:
@using (Html.BeginForm("Uploadfile", "Containers", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
@Html.TextBoxFor(x => x.Prop1)
@Html.TextBoxFor(x => x.Prop2)
@Html.TextBoxFor(x => x.Prop3)
<input type="file" name="file" id="file" />
<input type="submit" value="submit" />
}
然后您将使用默认模型绑定器从请求中重建此模型:
[HttpPost]
public ActionResult Uploadfile(Container containers, HttpPostedFileBase file)
{
...
}
答案 1 :(得分:8)
解决
模型
public class Book
{
public string Title {get;set;}
public string Author {get;set;}
}
控制器
public class BookController : Controller
{
[HttpPost]
public ActionResult Create(Book model, IEnumerable<HttpPostedFileBase> fileUpload)
{
throw new NotImplementedException();
}
}
并查看
@using (Html.BeginForm("Create", "Book", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
@Html.EditorFor(m => m)
<input type="file" name="fileUpload[0]" /><br />
<input type="file" name="fileUpload[1]" /><br />
<input type="file" name="fileUpload[2]" /><br />
<input type="submit" name="Submit" id="SubmitMultiply" value="Upload" />
}
注意控制器操作的参数标题必须与输入元素的名称匹配
IEnumerable<HttpPostedFileBase> fileUpload
- &gt; name="fileUpload[0]"
fileUpload
必须匹配
答案 2 :(得分:6)
如果您不总是将图片发布到您的操作中,您可以执行以下操作:
[HttpPost]
public ActionResult Uploadfile(Container container, HttpPostedFileBase file)
{
//do container stuff
if (Request.Files != null)
{
foreach (string requestFile in Request.Files)
{
HttpPostedFileBase file = Request.Files[requestFile];
if (file.ContentLength > 0)
{
string fileName = Path.GetFileName(file.FileName);
string directory = Server.MapPath("~/App_Data/uploads/");
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
string path = Path.Combine(directory, fileName);
file.SaveAs(path);
}
}
}
}
答案 3 :(得分:1)
对于多个文件;请注意较新的&#34; 多个&#34;输入属性:
形式:
@using (Html.BeginForm("FileImport","Import",FormMethod.Post, new {enctype = "multipart/form-data"}))
{
<label for="files">Filename:</label>
<input type="file" name="files" multiple="true" id="files" />
<input type="submit" />
}
控制器:
[HttpPost]
public ActionResult FileImport(IEnumerable<HttpPostedFileBase> files)
{
return View();
}
答案 4 :(得分:1)
首先从url下载jquery.form.js文件
http://plugins.jquery.com/form/
在cshtml中写下以下代码
@using (Html.BeginForm("Upload", "Home", FormMethod.Post, new { enctype = "multipart/form-data", id = "frmTemplateUpload" }))
{
<div id="uploadTemplate">
<input type="text" value="Asif" id="txtname" name="txtName" />
<div id="dvAddTemplate">
Add Template
<br />
<input type="file" name="file" id="file" tabindex="2" />
<br />
<input type="submit" value="Submit" />
<input type="button" id="btnAttachFileCancel" tabindex="3" value="Cancel" />
</div>
<div id="TemplateTree" style="overflow-x: auto;"></div>
</div>
<div id="progressBarDiv" style="display: none;">
<img id="loading-image" src="~/Images/progress-loader.gif" />
</div>
}
<script type="text/javascript">
$(document).ready(function () {
debugger;
alert('sample');
var status = $('#status');
$('#frmTemplateUpload').ajaxForm({
beforeSend: function () {
if ($("#file").val() != "") {
//$("#uploadTemplate").hide();
$("#btnAction").hide();
$("#progressBarDiv").show();
//progress_run_id = setInterval(progress, 300);
}
status.empty();
},
success: function () {
showTemplateManager();
},
complete: function (xhr) {
if ($("#file").val() != "") {
var millisecondsToWait = 500;
setTimeout(function () {
//clearInterval(progress_run_id);
$("#uploadTemplate").show();
$("#btnAction").show();
$("#progressBarDiv").hide();
}, millisecondsToWait);
}
status.html(xhr.responseText);
}
});
});
</script>
行动方法: -
public ActionResult Index()
{
ViewBag.Message = "Modify this template to jump-start your ASP.NET MVC application.";
return View();
}
public void Upload(HttpPostedFileBase file, string txtname )
{
try
{
string attachmentFilePath = file.FileName;
string fileName = attachmentFilePath.Substring(attachmentFilePath.LastIndexOf("\\") + 1);
}
catch (Exception ex)
{
}
}