C# 在 ASP.NET MVC 中上传图像
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Uploading image in ASP.NET MVC
提问by Persian.
I have a Upload form and I want to pass my information such as an Image and some other field but I don't know how can I upload Image ..
我有一个上传表单，我想传递我的信息，例如图像和其他一些字段，但我不知道如何上传图像 ..
this is my controller code :
这是我的控制器代码：
[HttpPost]
public ActionResult Create(tblPortfolio tblportfolio)
{
if (ModelState.IsValid)
{
db.tblPortfolios.AddObject(tblportfolio);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(tblportfolio);
}
And this is my view code :
这是我的视图代码：
@model MyApp.Models.tblPortfolio
<h2>Create</h2>
@using (Html.BeginForm(null, null, FormMethod.Post, new { enctype = "multipart/form-data" }))
{
@Html.ValidationSummary(true)
<fieldset>
<legend>tblPortfolio</legend>
<div class="editor-label">
@Html.LabelFor(model => model.Title)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Title)
@Html.ValidationMessageFor(model => model.Title)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.ImageFile)
</div>
<div class="editor-field">
@Html.TextBoxFor(model => model.ImageFile, new { type = "file" })
@Html.ValidationMessageFor(model => model.ImageFile)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Link)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Link)
@Html.ValidationMessageFor(model => model.Link)
</div>
<p>
<input type="submit" value="Create" />
</p>
</fieldset>
}
Now I don't know how can I upload Image and save it on server .. how can I set Image name by Guid.NewGuid();? Or how can I set Image Path ?
现在我不知道如何上传图像并将其保存在服务器上..如何设置图像名称Guid.NewGuid();？或者如何设置图像路径？
采纳答案by mattytommo
Firstly, you'll need to change your view to include the following:
首先，您需要更改视图以包含以下内容：
<input type="file" name="file" />
Then you'll need to change your post ActionMethodto take a HttpPostedFileBase, like so:
然后您需要更改您的帖子ActionMethod以获取HttpPostedFileBase，如下所示：
[HttpPost]
public ActionResult Create(tblPortfolio tblportfolio, HttpPostedFileBase file)
{
//you can put your existing save code here
if (file != null && file.ContentLength > 0)
{
//do whatever you want with the file
}
}
回答by Ehsan Sajjad
You can get it from Requestusing Request.FilesCollection, In case of single file upload just read from the first index using Request.Files[0]:
您可以Request使用Request.FilesCollection获取它，如果上传单个文件，只需使用Request.Files[0]以下命令从第一个索引中读取：
[HttpPost]
public ActionResult Create(tblPortfolio tblportfolio)
{
if(Request.Files.Count > 0)
{
HttpPostedFileBase file = Request.Files[0];
if (file != null)
{
// business logic here
}
}
}
In case of Multiple files uploading, you have to iterate on the Request.Filescollection:
在上传多个文件的情况下，您必须迭代Request.Files集合：
[HttpPost]
public ActionResult Create(tblPortfolio tblportfolio)
{
for(int i=0; i < Request.Files.Count; i++)
{
HttpPostedFileBase file = Request.Files[i];
if (file != null)
{
// Do something here
}
}
}
If you want to upload file without page refresh via ajax then you can use this article which uses jquery plugin
如果你想通过ajax上传文件而不刷新页面，那么你可以使用这篇使用jquery插件的文章
