Array.IndexOf(T) Method (T[], T, Int32)

ArrayIndexOfT Method (T, T, Int32)

Searches for the specified object and returns the index of the first occurrence within the range of elements in the Array that extends from the specified index to the last element.

Namespace: System
Assembly: mscorlib (in mscorlib.dll) Version: 4.0.0.0

Syntax

Copy

public static int IndexOf<T>(
	T[] array,
	T value,
	int startIndex
)

Parameters

array: Type: T
The one-dimensional, zero-based Array to search.
value: Type: T
The object to locate in array.
startIndex: Type: SystemInt32
The zero-based starting index of the search. 0 (zero) is valid in an empty array.

Type Parameters

T: The type of the elements of the array.

Return Value

Type: Int32
The zero-based index of the first occurrence of value within the range of elements in array that extends from startIndex to the last element, if found; otherwise, –1.

Exceptions

Exception	Condition
ArgumentNullException	array is null.
ArgumentOutOfRangeException	startIndex is outside the range of valid indexes for array.

Reference

Array Class

IndexOf Overload

System Namespace