C # URL Get picture flow string

http URL gets picture flow string
String url = serverurl.trimend ('/') + PUrl;
WebRequest request = webrequest.create (URL);
WebResponse response = Request. GetResponse ();
Stream stream = Response. GetResponseStream ();
byte[] bytefile = null;
list<byte> bytes = new list<byte> ();
int temp = stream. ReadByte ();
while (temp! =-1)
//{
bytes. Add ((byte) temp);
temp = stream. ReadByte ();
//}
Bytefile = bytes. ToArray ();
String str = convert.tobase64string (bytefile);
Response. Close ();

Local URL gets picture flow string
String path = "E:/1.png";
FileStream fs = file.openread (path); OpenRead
int filelength = 0;
Filelength = (int) fs. Length; Get file length
byte[] image = new Byte[filelength]; Create a byte array
Fs. Read (image, 0, filelength); Read by Byte stream
System.Drawing.Image result = System.Drawing.Image.FromStream (FS);
Fs. Close ();
String str = convert.tobase64string (image);

return str;

C # URL Get picture flow string