IList<T>.IndexOf(T) Method

Definition

Namespace:

System.Collections.Generic

Assembly:

System.Runtime.dll

Determines the index of a specific item in the IList<T>.

public:
 int IndexOf(T item);

public int IndexOf (T item);

abstract member IndexOf : 'T -> int

Public Function IndexOf (item As T) As Integer

Parameters

item

T

The object to locate in the IList<T>.

Returns

Int32

The index of item if found in the list; otherwise, -1.

Remarks

If an object occurs multiple times in the list, the IndexOf method always returns the first instance found.