c# - What is the difference between these code snippets? Parsing binary data -


i have 2 bits of code same thing in 2 different ways. difference 1 of them, posting file directly asp page , other i'm passing in location of file on server , trying same thing it. method works: 

public static byte[] getdatafromhttppostedfile(httppostedfile p_ofile) {     byte[] odata = new byte[p_ofile.inputstream.length];     p_ofile.inputstream.read(odata, 0, odata.length);     return convert.frombase64string(encoding.utf8.getstring(odata)); }

this snippet not work. same file (p_ofile , filelocation refer same file)

    byte[] filedata = file.readallbytes(filelocation);     filedata = convert.frombase64string(encoding.utf8.getstring(filedata));

this error message:

a first chance exception of type 'system.formatexception' occurred in mscorlib.dll

additional information: input not valid base-64 string contains non-base 64 character, more 2 padding characters, or illegal character among padding characters.

but files same... don't understand how 1 code snippet correctly converts file , other doesn't. difference?


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