c# - Read logfile with regex -

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i need read added text logfile , extract parts of save in database (number > s3.20.140, start scan, scanid, scantime, result). need read following block:

[2015-06-23 13:45:01.768] . [2015-06-23 13:45:01.768] scan requested [2015-06-23 13:45:01.768] random selection - s3.20.140 3 - 3 [2015-06-23 13:45:01.768] sv_et_cmd_type.sv_et_cmd_scan: s3.20.140 [2015-06-23 13:45:01.784] notification: activity=scan_started scanid=14 [2015-06-23 13:45:07.884] scumsgclient: receive 235 rectangles [2015-06-23 13:45:07.884] total scan 14 time: - 6.1 sec [2015-06-23 13:45:07.915] hip detection result "objects detected" [2015-06-23 13:45:07.915] scan results ready. [2015-06-23 13:45:11.128] user cleared scan 14 [2015-06-23 13:45:11.128] .

this block same every scan, there other information in logfile not wanna process. best approach this?

try this

using system; using system.collections.generic; using system.linq; using system.text; using system.text.regularexpressions; using system.io;  namespace consoleapplication1 {     class program     {         const string filename = @"c:\temp\test.txt";         static void main(string[] args)         {             streamreader reader = new streamreader(filename);             string inputline = "";             string pattern1 = @"^\[(?'datetime'[^\]]*)\](?'message'[^$]*)";             regex expr = new regex(pattern1, regexoptions.multiline);             while ((inputline = reader.readline()) != null)             {                 inputline = inputline.trim();                 match match = expr.match(inputline);                 string x = match.groups["datetime"].value;                 datetime date = datetime.parse(match.groups["datetime"].value);                 string message = match.groups["message"].value;                 if (message.contains(":"))                 {                     string[] array = message.split(new char[] { ':' });                     switch (array[0].trim())                     {                         case "sv_et_cmd_type.sv_et_cmd_scan" :                             console.writeline("number : {0}", array[1].trim());                             break;                     }                 }              }             console.readline();          }     } } ​

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