Array::IsReadOnly Property

 
System_CAPS_noteNote

The .NET API Reference documentation has a new home. Visit the .NET API Browser on docs.microsoft.com to see the new experience.

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

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

public:
property bool IsReadOnly {
	virtual bool get() sealed;
}

Property Value

Type: System::Boolean

This property is always false for all arrays.

Array implements the IsReadOnly property because it is required by the System.Collections::IList interface. An array that is read-only does not allow the addition, removal, or modification of elements after the array is created.

If you require a read-only collection, use a System.Collections class that implements the System.Collections::IList interface.

If you cast or convert an array to an IList interface object, the IList::IsReadOnly property returns false. However, if you cast or convert an array to a IList<T> interface, the IsReadOnly property returns true.

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

.NET Framework
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Return to top
Show: