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ImmutableList<T>.IndexOf Method

Definition

Overloads

IndexOf(T)

Searches for the specified object and returns the zero-based index of the first occurrence within the entire immutable list.

IndexOf(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.

IndexOf(T)

Source:
ImmutableList_1.cs
Source:
ImmutableList_1.cs
Source:
ImmutableList_1.cs
Source:
ImmutableList_1.cs

Searches for the specified object and returns the zero-based index of the first occurrence within the entire immutable list.

C#
public int IndexOf(T value);

Parameters

value
T

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

Returns

The zero-based index of the first occurrence of value within the entire immutable list, if found; otherwise, ?1.

Implements

Applies to

.NET 10 és más verziók
Termék Verziók
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8 (package-provided), 8, 9 (package-provided), 9, 10 (package-provided), 10
.NET Standard 2.0 (package-provided)
UWP 10.0

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

Source:
ImmutableList_1.cs
Source:
ImmutableList_1.cs
Source:
ImmutableList_1.cs
Source:
ImmutableList_1.cs

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.

C#
public int IndexOf(T item, int index, int count, System.Collections.Generic.IEqualityComparer<T> equalityComparer);
C#
public int IndexOf(T item, int index, int count, System.Collections.Generic.IEqualityComparer<T>? equalityComparer);

Parameters

item
T

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

index
Int32

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

count
Int32

The number of elements in the section to search.

equalityComparer
IEqualityComparer<T>

The equality comparer to use in the search.

Returns

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

Applies to

.NET 10 és más verziók
Termék Verziók
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8 (package-provided), 8, 9 (package-provided), 9, 10 (package-provided), 10
.NET Standard 2.0 (package-provided)
UWP 10.0