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 vote187 views1 answer
Unity cancel momentum
C#Unity
5 votes119 views2 answers
Enum loop
C#
0 vote178 views1 answer
How to write boolean condition in if statement at c#
C#
0 vote158 views1 answer
Set text in unity invisible
C#Unity
0 vote126 views1 answer
C# combobox lock edit
C#
0 vote151 views1 answer
Remove numericUpDown white space
C#
0 vote133 views1 answer
C# ipaddress to integer
C#
0 vote124 views1 answer
Calculator using single readline c#
C#
10 votes124 views3 answers
How to lock and hide a cursor unity
C#
0 vote121 views1 answer
C# pass mouse events to parent
C#