NumberRange Class

Definition

Represents a range of numbers.

public abstract class NumberRange

The range is specified as a string in the following forms or combination thereof:

5	single value
1,2,3,4,5	sequence of values
1-5	closed range
-5	open range (converted to a sequence from 1 to 5)
1-	open range (converted to a sequence from 1 to final number)
all	keyword representing all numbers.
odd	keyword representing odd numbers.
even	keyword representing even numbers.

The value delimiter can be either ',' or ';' and the range separator can be either '-' or ':'. Whitespace is permitted at any point in the input.

Any elements of the sequence that contain non-digit, non-whitespace, or non-separator characters or that are empty are ignored.

Initializes a new instance of the NumberRange class from the specified string.

Add(int)	Adds a single number to the sequence.
Add(int?, int?)	Adds a range of numbers to the sequence. Reverse ordering is accepted.
Add(string)	Adds a range of numbers to the sequence from a string representation (e.g. 1-5, 8, 11-13).
Contains(string)	Determines whether this instance contains the specified range part (number range or keyword).
Enumerate(int)	Enumerates all the numbers that this range instance describes. The sequence will be distinct and in ascending order.
ExpandKeyword(string, int)	Expands a supported keyword to an enumerable sequence of numbers. It can be overriden in derived classed to support additional keywords.
MatchKeyword(string)	Matches a supported keyword. It can be overriden in derived classed to support additional keywords.
ToString()	Converts this instance to a string containing the range of numbers.