Who can translate these codes from PHP to c#?

Who can translate the following PHP code to c#? Thank you very much.

$data["session_id"] = $sessionId;
$data["file"] = curl_file_create($filename, mime_content_type($filename), "Hello world");
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_TIMEOUT, 90);
curl_setopt($ch, CURLOPT_SAFE_UPLOAD, 0);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 0);
$output = curl_exec($ch);
$httpInfo = curl_getinfo($ch);
curl_close($ch);
unset($ch);