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ListBox.SelectedIndexCollection.IList.IndexOf Method

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

For a description of this member, see IList.IndexOf.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

int IList.IndexOf(
	Object selectedIndex
)

Parameters

selectedIndex
Type: System.Object

The zero-based index from the ListBox.ObjectCollection to locate in this collection.

Return Value

Type: System.Int32
The zero-based index in the collection where the specified index of the ListBox.ObjectCollection is located if it is in the ListBox.SelectedIndexCollection; otherwise, -1.

Implements

IList.IndexOf(Object)

This member is an explicit interface member implementation. It can be used only when the ListBox.SelectedIndexCollection instance is cast to an IList interface.

The ListBox.SelectedIndexCollection contains the indexes of selected items in the ListBox.ObjectCollection of the ListBox control.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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