File upload to web server using C#

Question

I am trying to upload file in web server as following using C#

try
{
    // create WebClient object
    WebClient client = new WebClient();

    string myFile = @"D:\test_file.txt";
    client.Credentials = CredentialCache.DefaultCredentials;

    // client.UploadFile(@"http://mywebserver/myFile", "PUT", myFile);
    client.UploadFile(@"http://localhost/uploads", "PUT", myFile);
    client.Dispose();
}
catch (Exception err)
{
    MessageBox.Show(err.Message);
}

But every time I am getting this error:

The remote server returned an error: (405) Method Not Allowed.

Answer 1

I have solved this using the POST method and server side code:

C# code

try
{
    WebClient client = new WebClient();
    string myFile = @"D:\test_file.txt";
    client.Credentials = CredentialCache.DefaultCredentials;
    client.UploadFile(@"http://localhost/uploads/upload.php", "POST", myFile);
    client.Dispose();
}
catch (Exception err)
{
    MessageBox.Show(err.Message);
}

Server side PHP code upload.php

<?php
    $filepath = $_FILES["file"]["tmp_name"];
    move_uploaded_file($filepath,"test_file.txt");
?>

Answer 2

The error means that the "PUT" method you are using is not allowed by the server. Check the response headers for allowed methods. More info here.

Or check the documentation for the application to which you are trying to upload the file.