Remove a list of characters from string in C# -

i need method removes list of characters string. need support characters i'm not sure i'm managing surrogate characters properly.

is there better way?

public static string remove(string source, char[] oldchar) {     if (string.isnullorempty(source) || oldchar == null || oldchar.length == 0)         return source;      (int = source.indexofany(oldchar, 0); != -1; = source.indexofany(oldchar, i))         source = source.remove(i, char.issurrogatepair(source, i) ? 2 : 1);      return source; } 

thank you

frank

the following not deal surrogate pairs not clear question want do. if fulfils requirement of removing list of characters string

public static string remove(string source, char[] oldchar) {     return string.join("", source.tochararray().where(a => !oldchar.contains(a)).toarray()); } 

example:

var s = "hello world"; var c = new[] { 'l', 'o' }; remove(s, c); //returns: wrd