Random String Generator

RandStringGen.cs

private static Random _rnd = new Random();
public static string Generate(string pattern)
{
	string text = string.Empty;
	string[] array = new string[]{"a","e","i","o","u"};            
	string[] array2 = new string[]{"b","c","d","f","g","h","j","k","l","m","n","p","q","r","s","t","v","w","x","y","z"};
	string[] array3 = new string[]{"0","1","2","3","4","5","6","7","8","9"};
	char[] p = pattern.ToCharArray();
	for (int i = 0; i < p.Length; i++){if (p[i] == 'c'){text += array2[_rnd.Next(array2.Length)];}if (p[i] == 'v'){text += array[_rnd.Next(array.Length)];}if (p[i] == 'n'){text += array3[_rnd.Next(array3.Length)];}}
	return text;
}