.NET Framework 4.6 and 4.5
Gets a value indicating whether the Array has a fixed size.
Array implements the IsFixedSize property because it is required by the System.Collections.IList interface.
An array with a fixed size does not allow the addition or removal of elements after the array is created, but it allows the modification of existing elements.
Retrieving the value of this property is an O(1) operation.
Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
Supported in: 3.0, 2.0, 1.0
Supported in: Windows Phone 8.1
Supported in: Windows Phone Silverlight 8.1
Supported in: Windows Phone Silverlight 8