Question : Remove special character from string

using C# I have a string which is a filename of a file being uploaded. on some systems a period can be used as part of a filename like ".testfile.pdf"  I need to remove the period only if it is the first character in the string.  I have tried replace but all periods are removed and i haven't been able to tuse regex either.

Answer : Remove special character from string

you can use TrimStart from string to do that: http://msdn.microsoft.com/fr-fr/library/system.string.trimstart.aspx

for example:
  string cleanFileName = ".testfile.txt".TrimStart('.');