C# webclient post file

private async Task<System.IO.Stream> Upload(string actionUrl, string paramString, Stream paramFileStream, byte [] paramFileBytes)
{
    HttpContent stringContent = new StringContent(paramString);
    HttpContent fileStreamContent = new StreamContent(paramFileStream);
    HttpContent bytesContent = new ByteArrayContent(paramFileBytes);
    using (var client = new HttpClient())
    using (var formData = new MultipartFormDataContent())
    {
        formData.Add(stringContent, "param1", "param1");
        formData.Add(fileStreamContent, "file1", "file1");
        formData.Add(bytesContent, "file2", "file2");
        var response = await client.PostAsync(actionUrl, formData);
        if (!response.IsSuccessStatusCode)
        {
            return null;
        }
        return await response.Content.ReadAsStreamAsync();
    }
}

Source: stackoverflow.com

Similar codes

0 vote314 views1 answer
Unity2d switch camera
C#Unity
0 vote266 views1 answer
C# System.nanoTime
C#
0 vote267 views1 answer
Parse error message: could not create type webservice.webservice asp .net
C#
1 vote259 views1 answer
Protected override void OnExiting(Object sender, EventArgs args) { base.OnExiting(sender, args); Environment.Exit(Environment.ExitCode); }
C#
0 vote291 views1 answer
C# invokerequired wpf
C#
0 vote268 views1 answer
C# show existing form
C#
0 vote285 views1 answer
Unity making homing missile
C#
2 votes230 views1 answer
How to take user input in string in c#
C#
3 votes277 views3 answers
C# array max
C#
27 votes279 views6 answers
Stack over flow
C#