PhysicalAddress.None Field
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Returns a new PhysicalAddress instance with a zero length address. This field is read-only.
public: static initonly System::Net::NetworkInformation::PhysicalAddress ^ None;
public static readonly System.Net.NetworkInformation.PhysicalAddress None;
staticval mutable None : System.Net.NetworkInformation.PhysicalAddress
Public Shared ReadOnly None As PhysicalAddress
The following code example demonstrates using this field to test the result of parsing an address.
PhysicalAddress^ StrictParseAddress( String^ address )
{
PhysicalAddress^ newAddress = PhysicalAddress::Parse( address );
if ( PhysicalAddress::None->Equals( newAddress ) )
return nullptr;
return newAddress;
}
public static PhysicalAddress? StrictParseAddress(string? address)
{
PhysicalAddress newAddress = PhysicalAddress.Parse(address);
if (PhysicalAddress.None.Equals(newAddress))
return null;
return newAddress;
}
The Parse method returns None if you specify null
address.
Product | Versions |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 2.0, 2.1 |
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