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ImmutableList<T>.IndexOf Method (T, Int32, Int32, IEqualityComparer<T>)

Searches for the specified object and returns the zero-based index of the first occurrence within the range of elements in the list that starts at the specified index and contains the specified number of elements.

Namespace:  System.Collections.Immutable
Assembly:  System.Collections.Immutable (in System.Collections.Immutable.dll)

public int IndexOf(
	T item,
	int index,
	int count,
	IEqualityComparer<T> equalityComparer
)

Parameters

item
Type: T

The object to locate in the list The value can be null for reference types.

index
Type: System.Int32

The zero-based starting index of the search. 0 (zero) is valid in an empty list.

count
Type: System.Int32

The number of elements in the section to search.

equalityComparer
Type: System.Collections.Generic.IEqualityComparer<T>

The equality comparer to use in the search.

Return Value

Type: System.Int32
The zero-based index of the first occurrence of item within the range of elements in the list that starts at index and contains count number of elements, if found; otherwise, –1.

Implements

IImmutableList<T>.IndexOf(T, Int32, Int32, IEqualityComparer<T>)
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