Collection(Of T).ICollection(Of T).IsReadOnly Property
Gets a value indicating whether the ICollection(Of T) is read-only.
Assembly: mscorlib (in mscorlib.dll)
'Declaration Private ReadOnly Property IsReadOnly As Boolean Implements ICollection(Of T).IsReadOnly
Property ValueType: System.Boolean
true if the ICollection(Of T) is read-only; otherwise, false. In the default implementation of Collection(Of T), this property always returns false.
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.
.NET FrameworkSupported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
.NET Framework Client ProfileSupported in: 4, 3.5 SP1
XNA FrameworkSupported in: 3.0, 2.0, 1.0
Portable Class LibrarySupported in: Portable Class Library
Supported in: Windows Phone 8.1
Supported in: Windows Phone Silverlight 8.1
Supported in: Windows Phone Silverlight 8