count number of specific characters in string csharp

Code Example - count number of specific characters in string csharp

                
                        string source = "/once/upon/a/time/";
int count = 0;
foreach (char c in source) 
  if (c == '/') count++;

find character from string csharp count

                        
                                int count = Regex.Matches(test, "word").Count;