Regex for Folder name.

void Main()

{

       TestRegex("siddharth965388888888");

       TestRegex("s-_]p[{};_~!@#$%.^&()_-+=");

       TestRegex("siddharth mishra 9653");

}

 

// Define other methods and classes here

private void TestRegex(string str)

{

       Regex reg = new Regex("^[^\\/?*:|<>\"]+$");

    if (reg.IsMatch(str.ToString()))

       Console.WriteLine("Matched");

       else

              Console.WriteLine("NO");         

}