[英]How to receive and save the data sent from client side (J-query using Ajax) to server side (ASP.net C#)?
[英]Can't receive files from client side in asp.net using C#
我正在嘗試從表單獲取個人資料圖像。 html看起來像這樣:
<form action="UpdateProfile.aspx" method="post">
<input type='file' name='profilePic'/>
</form>
服務器端代碼如下所示:
HttpPostedFile image = Request.Files["profilePic"];
string imagePath = @"../Pictures/Profile/DefaultPicture.png";
if (image.ContentLength >0 && image != null)
{
if (Path.GetExtension(image.FileName) == "jpg" || Path.GetExtension(image.FileName) == "jpeg" ||
Path.GetExtension(image.FileName) == "png" || Path.GetExtension(image.FileName) == "gif" ||
Path.GetExtension(image.FileName) == "bmp")
{
string fileExtention = Path.GetExtension(image.FileName);
string FileName = Session["Username"].ToString() + "." + fileExtention;
image.SaveAs(Server.MapPath(Path.Combine("../Pictures/Profile/", FileName)));
imagePath = Path.Combine("../Pictures/Profile/", FileName);
}
}
但是它永遠都行不通,無論我上傳什么image
變量始終為null
。 就像服務器無法接收它一樣。 你們可以幫助我解決問題或告訴我哪里出問題了嗎? 先感謝您。
確保正確設置Content-Type:
僅當HTTP請求的Content-Type值為“ multipart / form-data”時,才會填充文件集合。
https://msdn.microsoft.com/zh-cn/library/system.web.httprequest.files%28v=vs.110%29.aspx
這是一個例子:
<FORM action="..."
enctype="multipart/form-data"
method="post">
...
</FORM>
指導您的示例。
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="btnUpload" runat="server" Text="Upload" OnClick="Upload" />
using System.IO;
using System.Collections.Generic;
protected void Upload(object sender, EventArgs e)
{
if (FileUpload1.HasFile)
{
string fileName = Path.GetFileName(FileUpload1.PostedFile.FileName);
FileUpload1.PostedFile.SaveAs(Server.MapPath("~/Images/") + fileName);
Response.Redirect(Request.Url.AbsoluteUri);
}
}
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