string.IsBefore(…)
An extension method to determine if a string comes before another.
bool IsBefore(this string lhs, string rhs, StringComparison comparisonType)
Parameters
lhs: The left hand side of the operation.rhs: The right hand side of the operation.comparisonType: An enum defining the type of comparison. (See StringComparison)
Example
string a = "A";
string b = "B";
bool result = a.IsBefore(b, StringComparison.OrdinalIgnoreCase); // true