IList<T>.IndexOf Method

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

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

int IndexOf(
	T item
)

Parameters

item
Type: T
The object to locate in the IList<T>.

Return Value

Type: System.Int32
The index of item if found in the list; otherwise, -1.

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

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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