MoreLinq
MoreLinq
MoreEnumerable Class
MoreEnumerable Methods
Acquire(TSource) Method
AggregateRight Method
Assert Method
AssertCount Method
AtLeast(T) Method
AtMost(T) Method
Batch Method
Cartesian(TFirst, TSecond, TResult) Method
Concat Method
Consume(T) Method
CountBetween(T) Method
CountBy Method
DistinctBy Method
EndsWith Method
EquiZip Method
Exactly(T) Method
ExceptBy Method
Exclude(T) Method
FallbackIfEmpty Method
FillBackward Method
FillForward Method
Fold Method
ForEach Method
FullGroupJoin Method
Generate(TResult) Method
GenerateByIndex(TResult) Method
GroupAdjacent Method
Incremental Method
Index Method
Interleave(T) Method
Lag Method
Lead Method
MaxBy Method
MinBy Method
NestedLoops Method
OrderBy Method
OrderedMerge Method
Pad Method
Pairwise(TSource, TResult) Method
PartialSort Method
PartialSortBy Method
Partition Method
Permutations(T) Method
Pipe(T) Method
Prepend(TSource) Method
PreScan(TSource) Method
Random Method
RandomDouble Method
RandomSubset Method
Rank Method
RankBy Method
Repeat Method
RunLengthEncode Method
Scan Method
Segment Method
Sequence Method
SingleOrFallback(TSource) Method
SkipLast(T) Method
SkipUntil(TSource) Method
Slice(T) Method
SortedMerge Method
Split Method
StartsWith Method
Subsets Method
TagFirstLast(TSource, TResult) Method
TakeEvery(TSource) Method
TakeLast(TSource) Method
TakeUntil(TSource) Method
ThenBy Method
ToDataTable Method
ToDelimitedString Method
ToDictionary Method
ToHashSet Method
ToLookup Method
Trace Method
TraverseBreadthFirst(T) Method
TraverseDepthFirst(T) Method
Unfold(TState, T, TResult) Method
Windowed(TSource) Method
ZipLongest(TFirst, TSecond, TResult) Method
ZipShortest Method
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MoreEnumerableExactlyT Method

Determines whether or not the number of elements in the sequence is equals to the given integer.

Namespace:  MoreLinq
Assembly:  MoreLinq (in MoreLinq.dll) Version: 2.4.0
Syntax
Copy
public static bool Exactly<T>(
	this IEnumerable<T> source,
	int count
)

Parameters

source
Type: System.Collections.GenericIEnumerableT
The source sequence
count
Type: SystemInt32
The exactly number of items a sequence must have for this function to return true

Type Parameters

T
Element type of sequence

Return Value

Type: Boolean
true if the number of elements in the sequence is equals to the given integer or false otherwise.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerableT. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
Exceptions
ExceptionCondition
ArgumentNullExceptionsource is null
ArgumentOutOfRangeExceptioncount is negative
Examples
Copy
var numbers = { 123, 456, 789 };
var result = numbers.Exactly(3);
The result variable will contain true.
See Also