NumberFormatInfo.Clone Method
Definition
Important
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Creates a shallow copy of the NumberFormatInfo object.
public:
System::Object ^ Clone();public:
virtual System::Object ^ Clone();public object Clone ();member this.Clone : unit -> objabstract member Clone : unit -> obj
override this.Clone : unit -> objPublic Function Clone () As ObjectReturns
A new object copied from the original NumberFormatInfo object.
Implements
Examples
The following example uses the Clone method to create a read/write copy of a NumberFormatInfo object that represents the numeric formatting conventions of the current culture.
using System;
using System.Globalization;
public class Example
{
public static void Main()
{
NumberFormatInfo nfi = NumberFormatInfo.CurrentInfo;
Console.WriteLine("Read-Only: {0}\n", nfi.IsReadOnly);
NumberFormatInfo nfiw = (NumberFormatInfo) nfi.Clone();
Console.WriteLine("Read-Only: {0}", nfiw.IsReadOnly);
}
}
// The example displays the following output:
// Read-Only: True
//
// Read-Only: False
Imports System.Globalization
Module Example
Public Sub Main()
Dim nfi As NumberFormatInfo = NumberFormatInfo.CurrentInfo
Console.WriteLine("Read-Only: {0}", nfi.IsReadOnly)
Console.WriteLine()
Dim nfiw As NumberFormatInfo = CType(nfi.Clone(), NumberFormatInfo)
Console.WriteLine("Read-Only: {0}", nfiw.IsReadOnly)
End Sub
End Module
' The example displays the following output:
' Read-Only: True
'
' Read-Only: False
Remarks
The clone is writable even if the original NumberFormatInfo object is read-only. Therefore, the properties of the clone can be modified with user-defined patterns.
A shallow copy of an object is a copy of the object only. If the object contains references to other objects, the shallow copy will not create copies of the referred objects. It will refer to the original objects instead. On the other hand, a deep copy of an object creates a copy of the object and a copy of everything directly or indirectly referenced by that object. In the case of a NumberFormatInfo object, a shallow copy is sufficient for copying all instance properties, because all properties that return object references are static (Shared in Visual Basic).
