Method Exclude

Exclude<T>(IEnumerable<T>, int, int)

Excludes a contiguous number of elements from a sequence starting at a given index.

Declaration

public static IEnumerable<T> Exclude<T>(this IEnumerable<T> sequence, int startIndex, int count)

Parameters

Type	Name	Description
IEnumerable<T>	sequence	The sequence to exclude elements from
int	startIndex	The zero-based index at which to begin excluding elements
int	count	The number of elements to exclude

Returns

Type	Description
IEnumerable<T>	A sequence that excludes the specified portion of elements

Type Parameters

Name	Description
T	The type of the elements of the sequence

Remarks

This method uses deferred execution and streams its results.

Examples

The following code example demonstrates how to exclude a contiguous set of elements from a sequence using Exclude.

var sequence = Enumerable.Range(1, 10);
            
// Execute an action for each element
var result = sequence
    .Exclude(3, 5);

Console.WriteLine(
    "[" +
    string.Join(", ", result) +
    "]");

// This code produces the following output:
// [1, 2, 3, 9, 10]

Exceptions

Type	Condition
ArgumentNullException	sequence is null.
ArgumentOutOfRangeException	startIndex or count is less than 0.

Exclude<T>(IEnumerable<T>, Range)

Excludes a contiguous number of elements from a sequence starting at a given index.

Declaration

public static IEnumerable<T> Exclude<T>(this IEnumerable<T> sequence, Range range)

Parameters

Type	Name	Description
IEnumerable<T>	sequence	The sequence to exclude elements from
Range	range	The zero-based index at which to begin excluding elements

Returns

Type	Description
IEnumerable<T>	A sequence that excludes the specified portion of elements

Type Parameters

Name	Description
T	The type of the elements of the sequence

Remarks

This method uses deferred execution and streams its results.

Exceptions

Type	Condition
ArgumentNullException	sequence is null.
ArgumentOutOfRangeException	range.Start.Value.Start.Value or range.End.Value.End.Value is less than 0.