public string GetBothUpperAndLower(int length)
{
var pwd = "";
for (var i = 0; i < length; i++)
{
if (_randomNumberGenerator.GetRandomIntegerBetween(new Range(0, 9)) % 2 == 0)
{
pwd += _randomNumberGenerator.GetRandomLetterUpper();
}
else
{
pwd += _randomNumberGenerator.GetRandomLetterLower();
}
}
return(pwd);
}