List(T).IndexOf Method (T, Int32)

ListTIndexOf Method (T, Int32)

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

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

Syntax

Copy

public int IndexOf(
	T item,
	int index
)

Parameters

item: Type: T
The object to locate in the ListT. The value can be null for reference types.
index: Type: SystemInt32
The zero-based starting index of the search. 0 (zero) is valid in an empty list.

Return Value

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

Exceptions

Exception	Condition
ArgumentOutOfRangeException	index is outside the range of valid indexes for the ListT.

Reference

ListT Class

IndexOf Overload

System.Collections.Generic Namespace