Method SelectMany

SelectMany<T, TOther, TResult>(Maybe<T>, Func<T, Maybe<TOther>>, Func<T, TOther, TResult>)

Allows values from multiple maybe instances to be combined in the select portion of a LINQ query.

Declaration

public static Maybe<TResult> SelectMany<T, TOther, TResult>(this Maybe<T> maybe, Func<T, Maybe<TOther>> converter, Func<T, TOther, TResult> combiner)

Parameters

Type	Name	Description
Maybe<T>	maybe	A maybe instance to combine.
Func<T, Maybe<TOther>>	converter	A function that takes the value of maybe (when non-empty) and returns a Maybe{TOther} result.
Func<T, TOther, TResult>	combiner	Function that combines values of T and TOther to return a TResult.

Returns

Type	Description
Maybe<TResult>	A Maybe{TResult} containing the result of the combiner function. Will be Mabye{T}.Not

Type Parameters

Name	Description
T	The type of the first maybe instance.
TOther	The type of the second maybe instance.
TResult	The type of the result of combining the two types.

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if converter or combiner is null.