isMobile

This function returns true if the string provided is a valid South African mobile phone number in the following format: 27821234567.

private static bool isMobile(string inputMobile)
{
    inputMobile =
NulltoString(inputMobile);
    string strRegex = “(^27[78][2347][0-9]{7})”;
    Regex re = new Regex(strRegex);
    if (re.IsMatch(inputMobile))
        return (true);
    else
        return (false);
}

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