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Enumerable.Skip<TSource>(IEnumerable<TSource>, Int32) Method

  • Reference

Definition

Namespace:
System.Linq
Assembly:
System.Linq.dll
Assembly:
System.Core.dll
Assembly:
netstandard.dll
Source:
Skip.cs
Source:
Skip.cs
Source:
Skip.cs

Bypasses a specified number of elements in a sequence and then returns the remaining elements.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static System::Collections::Generic::IEnumerable<TSource> ^ Skip(System::Collections::Generic::IEnumerable<TSource> ^ source, int count);
public static System.Collections.Generic.IEnumerable<TSource> Skip<TSource> (this System.Collections.Generic.IEnumerable<TSource> source, int count);
static member Skip : seq<'Source> * int -> seq<'Source>
<Extension()>
Public Function Skip(Of TSource) (source As IEnumerable(Of TSource), count As Integer) As IEnumerable(Of TSource)

Type Parameters

TSource

The type of the elements of source.

Parameters

source
IEnumerable<TSource>

An IEnumerable<T> to return elements from.

count
Int32

The number of elements to skip before returning the remaining elements.

Returns

IEnumerable<TSource>

An IEnumerable<T> that contains the elements that occur after the specified index in the input sequence.

Exceptions

ArgumentNullException

source is null.

Examples

The following code example demonstrates how to use Skip to skip a specified number of elements in an array and return the remaining elements.

int[] grades = { 59, 82, 70, 56, 92, 98, 85 };

Console.WriteLine("All grades except the first three:");
foreach (int grade in grades.Skip(3))
{
    Console.WriteLine(grade);
}

/*
 This code produces the following output:

All grades except the first three:
 56
 92
 98
 85
*/

' Create an array of integers that represent grades.
Dim grades() As Integer = {59, 82, 70, 56, 92, 98, 85}

' Sort the numbers in descending order and
' get all but the first (largest) three numbers.
Dim skippedGrades As IEnumerable(Of Integer) =
grades _
.Skip(3)

' Display the results.
Dim output As New System.Text.StringBuilder("All grades except the first three are:" & vbCrLf)
For Each grade As Integer In skippedGrades
    output.AppendLine(grade)
Next
Console.WriteLine(output.ToString())

' This code produces the following output:
'
' All grades except the first three are:
' 56
' 92
' 98
' 85

Remarks

This method is implemented by using deferred execution. The immediate return value is an object that stores all the information that is required to perform the action. The query represented by this method is not executed until the object is enumerated either by calling its GetEnumerator method directly or by using foreach in C# or For Each in Visual Basic.

If source contains fewer than count elements, an empty IEnumerable<T> is returned. If count is less than or equal to zero, all elements of source are yielded.

The Take and Skip methods are functional complements. Given a collection sequence coll and an integer n, concatenating the results of coll.Take(n) and coll.Skip(n) yields the same sequence as coll.

In Visual Basic query expression syntax, a Skip clause translates to an invocation of Skip.

Applies to

See also