c# - What is wrong when trying to find how much bytes sent(uploaded) so far? -

i have event i'm doing progress report backgroundworker1 progresschanged event:

mbsent = ((double)obj.bytessent) / (1 << 20); stringprogressreport[2] = mbsent.tostring(); backgroundworker1.reportprogress(0, 2); 

mbsent global double var. , stringprogressreport string array var. have var type long called totalbytes file i'm uploading size. i'm not using var here maybe should.

then in backgroundworker progresschanged event did:

label5.text = stringprogressreport[2]; 

the problem in label5 see counting int numbers 1,2,3,4,5...when it's getting 25 in end see number 25 become 25.34543356767 , totalbytes size else @ it's 26.7898 or something.

something wrong this: mbsent = ((double)obj.bytessent) / (1 << 20); maybe need sue here somehow totalbytes(the file total size) ?

this how i'm calculating totalbytes:

long totalbytes = 0;         private void button3_click(object sender, eventargs e)         {             openfiledialog openfiledialog1 = new openfiledialog();              openfiledialog1.initialdirectory = "c:\\";             openfiledialog1.filter = "mp4 files (*.mp4)|*.mp4|all files (*.*)|*.*";              if (openfiledialog1.showdialog() == dialogresult.ok)             {                 filenametoupload = openfiledialog1.filename;                 filename = openfiledialog1.filename;                  using (filestream filestream = file.openread(filename))                 {                     totalbytes = filestream.length;                 }             }         } 

there's nothing wrong calculation. if don't want see decimals in output either don't convert mbsent double or use format string in tostring() call.

either:

mbsent = obj.bytessent / (1 << 20); 

or:

stringprogressreport[2] = mbsent.tostring("d"); 

and when totalbytes 26,789,800, mbsent 25.45874420 correct. 20,789,800 / 1,048,576 = 25.45874420.