Using LINQ to parse the numbers from a string

Question

Is it possible to write a query where we get all those characters that could be parsed into int from any given string?

For example we have a string like: \"$%^DDFG

Answer 1

public static string DigitsOnly(string strRawData)
  {
     return Regex.Replace(strRawData, "[^0-9]", "");
  }