Large file in Kendo UI Uploader - asp.net

Question

I want upload large file(600 MB) in ASP.Net Mvc with Kendo Uploader But I get flowing Exception:
OutOfMemoryException
Web.config: maxRequestLength and maxAllowedContentLength were set
before too
maxRequestLength = "2097152" maxAllowedContentLength = "2147483647"

Answer 1

Saeid is my coworker (really sharp man) and we solve the solution after a lot research,
so we think share it with you....
first of all
i want to describe solution.
we want to upload large file asynchronous with kendo ui upload widget but we have a problem.
when we upload large file (600MB or larger), application throw out of memory exception because application load 600MB to ram and .....
solution
1- if you want to use kendo ui uploader you must use following html code
<form method="post" enctype="multipart/form-data" action="api/UploadFile">
<input name="files" id="files" type="file" />
</form>
$("#files").kendoUpload({
async: {
saveUrl: "/api/UploadFile",
autoUpload: true
},
success: onSuccess,
upload: onUpload
});
1-1:you must use enctype="multipart/form-data" for async upload,
1-2:action="api/UploadFile" i want to upload file to UploadFile web Api
if you want use html input file,please you below html code
<form method="post" enctype="multipart/form-data" action="api/UploadFile">
<input name="files" id="files" type="file" />
</form>
2-Api must be has below code
public class UploadController : ApiController
{
public Task<HttpResponseMessage> PostFormData()
{
// Check if the request contains multipart/form-data.
if (Request.Content.IsMimeMultipartContent() == false)
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
string root = HttpContext.Current.Server.MapPath("~/App_Data");
var provider = new MultipartFormDataStreamProvider(root);
var task = Request.Content.ReadAsMultipartAsync(provider).
ContinueWith<HttpResponseMessage>(t =>
{
if (t.IsFaulted || t.IsCanceled)
{
Request.CreateErrorResponse(HttpStatusCode.InternalServerError, t.Exception);
}
foreach (MultipartFileData file in provider.FileData)
{
string directory = Path.GetDirectoryName(file.LocalFileName);
string filename = file.Headers.ContentDisposition.FileName.Replace(#"\","").Replace(#"""","");
File.Move(file.LocalFileName, Path.Combine(directory, filename));
}
return Request.CreateResponse(HttpStatusCode.OK);
});
return task;
}
}
2-1 : we determind app_data folder to save uploaded file
Now you can upload file Async but if you choose large file then you get out of memory exception
for resolve this problem ,you should say to mvc to not buffer data in UploadFile Api.
it has easy solution
Please Read following Article for solve it.
Dealing with large file