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IPInterfaceProperties.GetIPv(4|6)Properties never returns null #11056

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Merged
merged 3 commits into from
Mar 8, 2025
Merged

IPInterfaceProperties.GetIPv(4|6)Properties never returns null #11056

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274a3e2
GetIPv4Properties never returns null
antonfirsov Mar 6, 2025
ebb4ba2
oops
antonfirsov Mar 6, 2025
2f1f621
use xref
antonfirsov Mar 7, 2025
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5 changes: 0 additions & 5 deletions snippets/cpp/VS_Snippets_Remoting/NCLNetInfo2/CPP/networkexamples.cpp
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@

Check failure on line 1 in snippets/cpp/VS_Snippets_Remoting/NCLNetInfo2/CPP/networkexamples.cpp

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GitHub Actions / snippets-build 

ERROR: Project missing. A project (and optionally a solution file) must be in this directory or one of the parent directories to validate and build this code.

#using <System.dll>

Expand Down Expand Up @@ -836,11 +836,6 @@

// Try to get the IPv4 interface properties.
IPv4InterfaceProperties ^ p = adapterProperties->GetIPv4Properties();
if ( !p )
{
Console::WriteLine( "No IPv4 information is available for this interface." );
continue;
}

// Display the IPv4 specific data.
Console::WriteLine( " Index ............................. : {0}",
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6 changes: 0 additions & 6 deletions .../System.Net.NetworkInformation/DuplicateAddressDetectionState/Overview/networkexamples.cs
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Expand Up @@ -796,12 +796,6 @@ public static void DisplayIPv4NetworkInterfaces()
// Try to get the IPv4 interface properties.
IPv4InterfaceProperties p = adapterProperties.GetIPv4Properties();

if (p == null)
{
Console.WriteLine("No IPv4 information is available for this interface.");
Console.WriteLine();
continue;
}
// Display the IPv4 specific data.
Console.WriteLine(" Index ............................. : {0}", p.Index);
Console.WriteLine(" MTU ............................... : {0}", p.Mtu);
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6 changes: 1 addition & 5 deletions snippets/visualbasic/VS_Snippets_Remoting/NCLNetInfo2/VB/networkexamples.vb
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@@ -1,4 +1,4 @@


Check failure on line 1 in snippets/visualbasic/VS_Snippets_Remoting/NCLNetInfo2/VB/networkexamples.vb

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GitHub Actions / snippets-build 

ERROR: Project missing. A project (and optionally a solution file) must be in this directory or one of the parent directories to validate and build this code.
Imports System.Net
Imports System.Net.NetworkInformation
Imports System.Net.Sockets
Expand Down Expand Up @@ -695,11 +695,7 @@
Dim adapterProperties As IPInterfaceProperties = adapter.GetIPProperties()
' Try to get the IPv4 interface properties.
Dim p As IPv4InterfaceProperties = adapterProperties.GetIPv4Properties()

If p Is Nothing Then
Console.WriteLine("No IPv4 information is available for this interface.")
GoTo ContinueForEach1
End If

' Display the IPv4 specific data.
Console.WriteLine(" Index ............................. : {0}", p.Index)
Console.WriteLine(" MTU ............................... : {0}", p.Mtu)
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6 changes: 4 additions & 2 deletions xml/System.Net.NetworkInformation/IPInterfaceProperties.xml
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Expand Up @@ -494,7 +494,8 @@

## Remarks
For a detailed description of the information available for an interface that supports IPv4, see the <xref:System.Net.NetworkInformation.IPv4InterfaceProperties> class documentation. Note that the object returned by the <xref:System.Net.NetworkInformation.IPInterfaceProperties.GetIPv4Properties%2A> method reflects the configuration as of the time the object is created. This information is not updated dynamically.

A <xref:System.Net.NetworkInformation.NetworkInformationException> is thrown if the interface does not support the IPv4 protocol, therefore it's recommended to check IPv4 support calling <xref:System.Net.NetworkInformation.NetworkInterface.Supports%2A> on the originating <xref:System.Net.NetworkInformation.NetworkInterface> instance before querying the IPv4 properties.

]]></format>
</remarks>
<exception cref="T:System.Net.NetworkInformation.NetworkInformationException">The interface does not support the IPv4 protocol.</exception>
Expand Down Expand Up @@ -544,7 +545,8 @@

## Remarks
For a detailed description of the information available for an interface that supports IPv6, see the <xref:System.Net.NetworkInformation.IPv6InterfaceProperties> documentation. Note that the object returned by the <xref:System.Net.NetworkInformation.IPInterfaceProperties.GetIPv6Properties%2A> method reflects the configuration as of the time the object is created. This information is not updated dynamically.

A <xref:System.Net.NetworkInformation.NetworkInformationException> is thrown if the interface does not support the IPv6 protocol, therefore it's recommended to check IPv6 support calling <xref:System.Net.NetworkInformation.NetworkInterface.Supports%2A> on the originating <xref:System.Net.NetworkInformation.NetworkInterface> instance before querying the IPv6 properties.

]]></format>
</remarks>
<exception cref="T:System.Net.NetworkInformation.NetworkInformationException">The interface does not support the IPv6 protocol.</exception>
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