Collection(Of T).IList.IsReadOnly Property

July 28, 2014

Gets a value indicating whether the IList is read-only.

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

'Declaration
Private ReadOnly Property IsReadOnly As Boolean
	Implements IList.IsReadOnly

Property Value

Type: System.Boolean
true if the IList is read-only; otherwise, false. In the default implementation of Collection(Of T), this property always returns false.

Implements

IList.IsReadOnly

A collection that is read-only does not allow the addition, removal, or modification of elements after the collection is created.

A collection that is read-only is simply a collection with a wrapper that prevents modifying the collection; therefore, if changes are made to the underlying collection, the read-only collection reflects those changes.

Retrieving the value of this property is an O(1) operation.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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