Catch WebException from HttpWebRequest POST error response.

A WebException will be thrown if a non 200 status code is returned from the server.  To check the message returned, catch it and read the response.

try
{ 
  byte[] buf = Encoding.UTF8.GetBytes(payload);
  httpReq.ContentLength = buf.Length;
  httpReq.GetRequestStream().Write(buf, 0, buf.Length);   HttpWebResponse resp = (HttpWebResponse)httpReq.GetResponse();

   if (resp.StatusCode != HttpStatusCode.NoContent && resp.StatusCode != HttpStatusCode.NotFound)
  {   
    return resp.GetResponseStream(); //Successful response
  }
}
catch (WebException wex)
{ 
  using (var stream = ex.Response.GetResponseStream())

  using (var reader = new StreamReader(stream))
  {   
    Console.WriteLine(reader.ReadToEnd()); //Message returned from client
  }
}
catch (Exception ex)
{
    // Something more serious happened
    // like for example you don't have network access
    // we cannot talk about a server exception here as
    // the server probably was never reached
}
 

Allow HTTP GET and POST of data to an .aspx page.

In Page_Load, use Request directly to allow GET and POST of data from client.

Request.QueryString[] will return value from the GET request of query string. 
i.e., http://[url]?data=somedata
Request.QueryString["data"] //will return "somedata"

Request.Form[] will return value of POST request.
i.e.,

<form action="http://[url]/Default.aspx" method="post">
    <input name="data" type="text" value="somedata" id="data" />
    <input type="submit" name="Button1" value="Button" id="Button1" />
</form>
Request.Form["data"] //will return "somedata"

Request[] will look through all the collections below to find a match:
HttpRequest.QueryString

HttpRequest.Form

HttpRequest.Cookies

HttpRequest.ServerVariables

i.e., if Request["data"] is used, the page will accept GET and POST request without specifying which specific method the page will allow.

How to fix kubuntu that halts while booting on battery

To fix a machine that freezes during boot when its on battery, follow this:

1.) Edit grub and reboot the machine
     a.) sudo nano /etc/default/grub
     b.) add nolapic between the quotes on the line GRUB_CMDLINE_LINUX=""
     c.) sudo update-grub


The test temporarily, enter into grub during boot up:
1.) Hold left Shift button during boot
2.) Press the 'e' button
3.) Edit the Linux line to include the option acpi=no
4.) Optionally, remove the "quite splash" option from the Linux line to see ubuntu boot up *
5.) Hit Ctrl+x to reboot

*This will also help debug the problem if these instructions don't fix the problem.