A pair of extension methods to convert base-36 strings(!) to integers:
public static int ToBase10(this string base36)
{
if (string.IsNullOrEmpty(base36))
return 0;
int value = 0;
foreach (var c in base36.Trim())
{
value = value * 36 + c.ToBase10();
}
return value;
}
public static int ToBase10(this char c)
{
if (c >= '0' && c <= '9')
return c - '0';
c = char.ToUpper(c);
if (c >= 'A' && c <= 'Z')
return c - 'A' + 10;
return 0;
}
(Some genius decided that the best way to store numbers in the database was to encode them to strings. Decimals take too much space. Hex is better, but doesnt use the characters G-Z. So obviously you extend base-16 to base-36!)
