public static string FormatPhone(this string phone)
{
phone = phone.ClearPhone();
if (phone.Length == 11 && (phone[0] == '7' || phone[0] == '8')) // russia
{
phone = string.Format("+{0} ({1}) {2}-{3}",
phone.Substring(0, 1), phone.Substring(1, 3), phone.Substring(4, 3), phone.Substring(7, 4));
}
else if (phone.Length == 10 && phone.Substring(0, 3) == "375") // belorus
{
phone = string.Format("+{0} ({1}) {2}",
phone.Substring(0, 3), phone.Substring(3, 3), phone.Substring(6, 4));
}
else if (phone.Length == 10 && phone.Substring(0, 3) == "380") // ukraine
{
phone = string.Format("+{0} ({1}) {2}",
phone.Substring(0, 3), phone.Substring(3, 3), phone.Substring(6, 4));
}
else if (phone.Length == 12 && phone.Substring(0, 3) == "998") // uzbekistan
{
phone = string.Format("+{0} ({1}) {2}-{3}",
phone.Substring(0, 3), phone.Substring(3, 2), phone.Substring(5, 3), phone.Substring(8, 4));
}
else if (phone.Length == 8 && phone[0] == '7') // kaz
{
phone = string.Format("+{0} ({1}) {2}",
phone.Substring(0, 1), phone.Substring(1, 3), phone.Substring(4, 4));
}
return phone;
}
public static bool IsValid(this string phone)
{
phone = phone.ClearPhone();
var isValid = phone.Length >= 8;
return isValid;
}
