c# - File name validation -


i check file name validation in following way: 

foreach (char c in system.io.path.getinvalidfilenamechars()) {     validfilename = validfilename.replace(c, '_'); }

is there faster way do so?

this might faster, hardly think original slow enough care about...

var invalidchars = path.getinvalidfilenamechars(); var filenamechars = validfilename.tochararray();  (int = 0; < filenamechars.length; ++i)     if (invalidchars.contains(filenamechars[i]))         filenamechars[i] = '_';  validfilename = new string(filenamechars);

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