Implementation of uploading file _jquery based on jquery Ajax

This example for you to share the implementation based on jquery Ajax upload file key code, for your reference, the specific contents are as follows

JS Code:

Save
Function Btnadd () {
 var formData = new FormData ($ ("#frm") [0]);

 $.ajax ({
  URL: "/admin/contentmanage/saveedit",
  Type: "POST",
  data:formdata,
  contenttype:false,// You must false to avoid jquery's default handling of Formdata XMLHttpRequest will handle the formdata correctly 
  Processdata:false,// Must be false to automatically add the correct content-type
  success:function (data) {
   if (data = = "OK") {
    alert ("Save Success");
    $.idialog ("close"); Refresh parent Page
   }
   else {
    alert ("Save failed: + data";}}}
 );

asp.net MVC background Code:

First to determine if the path exists and does not exist, create the path
string path = Path.Combine (system.configuration.configurationmanager.appsettings[) Uploadsfiles "], folder +"/"+ DateTime.Now.ToString (" yyyyMMdd ") +"/");
String physicalpath = Server. MapPath (path);
if (! Directory.Exists (PhysicalPath))
{
 directory.createdirectory (physicalpath);
}

HttpPostedFileBase file = Request. Files[0];
String newfilename = Guid.NewGuid (). ToString (). Replace ("-", "") + path.getextension (file. FileName);
String savepath = Path.Combine (PhysicalPath, newfilename);
File. SaveAs (Savepath);
FileName = file. FileName;
String url = Path.Combine (Path, newfilename);
return URL;

For more highlights, please click on the "jquery Upload operation Summary" for in-depth study and research.

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