C# program to find files in a directory

hi, working on finding files directory instance .txt, .csv, .xls, .xlsx using below code. finds files of 1 extension , in specified directory , not traverse through sub-directories. how re-write search multiple file formats & traverse through sub-directories.

string[] dirs = directory.getfiles(@"c:\temp\", "*.csv");                  foreach (string dir in dirs)                  {                      console.writeline(dir);                  }

thanks in advance....

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sqlenthusiast

try filter linq 

var files = directory.getfiles("c:\\temp", "*.*", searchoption.alldirectories)
            .where(s => s.endswith("*.csv") || s.endswith("*.jpg"));

or 

try create extension method 

dinfo.getfilesbyextensions(".jpg",".exe",".gif");


public static ienumerable<fileinfo> getfilesbyextensions(this directoryinfo dir, params string[] extensions)
{
    if (extensions == null) 
         throw new argumentnullexception("extensions");
    ienumerable<fileinfo> files = dir.enumeratefiles();
    return files.where(f => extensions.contains(f.extension));
}

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