Small fixes from post-merge code review.

snippets/csharp/System.Net.Sockets/TcpClient/Overview/tcpclient.cs

@@ -66,7 +66,7 @@ static void Connect(String server, String message)
       // combination.
       Int32 port = 13000;
 
-      // Prefer using declaration to ensure the instance is Disposed later.
+      // Prefer a using declaration to ensure the instance is Disposed later.
       using TcpClient client = new TcpClient(server, port);
 
       // Translate the passed message into ASCII and store it as a Byte array.

snippets/csharp/System.Net.Sockets/TcpListener/Overview/tcpserver.cs

@@ -74,9 +74,6 @@ public static void Main()
           stream.Write(msg, 0, msg.Length);
           Console.WriteLine("Sent: {0}", data);
         }
-
-        // Shutdown and end the connection
-        client.Close();
       }
     }
     catch(SocketException e)

snippets/csharp/System.Net/HttpVersion/Overview/httpversion_version10.cs

@@ -13,38 +13,38 @@ The changed Version and the 'Version' of the response object are displayed.
 
 class HttpVersion_Version10
 {
-	public static void Main()
-	{
-		try	
-		{
-// <Snippet1>
-			// HttpClient lifecycle management best practices:
-			// https://learn.microsoft.com/dotnet/fundamentals/networking/http/httpclient-guidelines#recommended-use
-			HttpClient client = new HttpClient();
+    public static void Main()
+    {
+        try
+        {
+            // <Snippet1>
+            // HttpClient lifecycle management best practices:
+            // https://learn.microsoft.com/dotnet/fundamentals/networking/http/httpclient-guidelines#recommended-use
+            using HttpClient client = new HttpClient();
 
-			HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, "http://www.microsoft.com");
-			Console.WriteLine("Default HTTP request version is {0}", request.Version);
+            using HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, "http://www.microsoft.com");
+            Console.WriteLine("Default HTTP request version is {0}", request.Version);
 
-			request.Version = HttpVersion.Version10;
-			Console.WriteLine("Request version after assignment is {0}", request.Version);
+            request.Version = HttpVersion.Version10;
+            Console.WriteLine("Request version after assignment is {0}", request.Version);
 
-			HttpResponseMessage response = client.Send(request);
-			Console.WriteLine("Response HTTP version {0}", response.Version);
-// </Snippet1>
-			Console.WriteLine("\nPress 'Enter' Key to Continue..............");
-			Console.Read();			
-		}
-		catch(HttpRequestException e)
-		{
-			Console.WriteLine("HttpRequestException Caught!");
-			Console.WriteLine("Message :{0} ",e.Message);
-			Console.WriteLine("Source  :{0} ",e.Source);
-		}
-		catch(Exception e)
-		{
-			Console.WriteLine("Exception Caught!");
-			Console.WriteLine("Source  :{0}" , e.Source);
-			Console.WriteLine("Message :{0}" , e.Message);
-		}
-	}
+            using HttpResponseMessage response = client.Send(request);
+            Console.WriteLine("Response HTTP version {0}", response.Version);
+            // </Snippet1>
+            Console.WriteLine("\nPress 'Enter' Key to Continue..............");
+            Console.Read();
+        }
+        catch (HttpRequestException e)
+        {
+            Console.WriteLine("HttpRequestException Caught!");
+            Console.WriteLine("Message :{0} ", e.Message);
+            Console.WriteLine("Source  :{0} ", e.Source);
+        }
+        catch (Exception e)
+        {
+            Console.WriteLine("Exception Caught!");
+            Console.WriteLine("Source  :{0}", e.Source);
+            Console.WriteLine("Message :{0}", e.Message);
+        }
+    }
 }

snippets/visualbasic/VS_Snippets_Remoting/HttpVersion_Version10/VB/httpversion_version10.vb

@@ -17,16 +17,18 @@ Class HttpVersion_Version10
 ' <Snippet1>
 			' HttpClient lifecycle management best practices:
 			' https://learn.microsoft.com/dotnet/fundamentals/networking/http/httpclient-guidelines#recommended-use
-			Dim client As New HttpClient()
+			Using client As New HttpClient()
+                Using request As New HttpRequestMessage(HttpMethod.Get, "http://www.microsoft.com")
+                    Console.WriteLine("Default HTTP request version is {0}", request.Version)
 
-			Dim request As New HttpRequestMessage(HttpMethod.Get, "http://www.microsoft.com")
-			Console.WriteLine("Default HTTP request version is {0}", request.Version)
+                    request.Version = HttpVersion.Version10
+                    Console.WriteLine("Request version after assignment is {0}", request.Version)
 
-			request.Version = HttpVersion.Version10
-			Console.WriteLine("Request version after assignment is {0}", request.Version)
-
-			Dim response As HttpResponseMessage = client.Send(request)
-			Console.WriteLine("Response HTTP version {0}", response.Version)
+                    Using response As HttpResponseMessage = client.Send(request)
+                        Console.WriteLine("Response HTTP version {0}", response.Version)
+                    End Using
+                End Using
+            End Using
 ' </Snippet1>
             Console.WriteLine(ControlChars.Cr + "Press 'Enter' Key to Continue..............")
             Console.Read()

xml/System.Net.Http/ByteArrayContent.xml

@@ -83,7 +83,7 @@
           <format type="text/markdown"><![CDATA[  
 
 ## Remarks  
-The <xref:System.Net.Http.ByteArrayContent> class does not internally copy the provided byte array but keeps a reference to it instead. Callers should not modify the data in the array until the content is sent. 
+The <xref:System.Net.Http.ByteArrayContent> class does not internally copy the provided byte array but keeps a reference to it instead. Callers should not modify the data in the array until after the content is sent. 
 
  ]]></format>
         </remarks>
@@ -129,7 +129,7 @@ The <xref:System.Net.Http.ByteArrayContent> class does not internally copy the p
           <format type="text/markdown"><![CDATA[  
 
 ## Remarks  
-The <xref:System.Net.Http.ByteArrayContent> class does not internally copy the provided byte array but keeps a reference to it instead. Callers should not modify the data in the array until the content is sent. 
+The <xref:System.Net.Http.ByteArrayContent> class does not internally copy the provided byte array but keeps a reference to it instead. Callers should not modify the data in the array until after the content is sent. 
 
  Only the range specified by the `offset` parameter and the `count`  parameter is used as content.
 

xml/System.Net.NetworkInformation/Ping.xml

@@ -1775,10 +1775,7 @@
           <format type="text/markdown"><![CDATA[  
 
 ## Remarks  
- These methods do not cause your application's main thread to block. If you want to block while waiting for the ICMP echo reply message, use the <xref:System.Net.NetworkInformation.Ping.Send%2A> methods.  
-
-> [!NOTE]
->  The IP address returned by any of the <xref:System.Net.NetworkInformation.Ping.SendPingAsync%2A> methods can originate from a malicious remote computer. Do not connect to the remote computer using this. Use DNS to determine the IP address of the machine to which you want to connect.  
+The IP address returned by any of the <xref:System.Net.NetworkInformation.Ping.SendPingAsync%2A> methods can originate from a malicious remote computer. Do not connect to the remote computer using this. Use DNS to determine the IP address of the machine to which you want to connect.  
 
  ]]></format>
         </remarks>

xml/System.Net/WebProxy.xml

@@ -80,7 +80,7 @@
 
 
 ## Examples  
- The following code example sets up <xref:System.Net.Http.HttpClient> instance with a <xref:System.Net.WebProxy> instance. The <xref:System.Net.Http.HttpClient> instance uses the proxy to connect to external Internet resources. (For an example that demonstrates using the WPAD feature, see the documentation for the <xref:System.Net.IWebProxyScript> class.)  
+ The following code example sets up an <xref:System.Net.Http.HttpClient> instance with a <xref:System.Net.WebProxy> instance. The <xref:System.Net.Http.HttpClient> instance uses the proxy to connect to external Internet resources. (For an example that demonstrates using the WPAD feature, see the documentation for the <xref:System.Net.IWebProxyScript> class.)  
 
  :::code language="cpp" source="~/snippets/cpp/VS_Snippets_Remoting/Classic WebProxy Example/CPP/source.cpp" id="Snippet1":::
  :::code language="csharp" source="~/snippets/csharp/System.Net/WebProxy/Overview/source.cs" id="Snippet1":::
@@ -1147,7 +1147,8 @@
 
  Applications should use the <xref:System.Net.Http.HttpClient.DefaultProxy?displayProperty=nameWithType> property instead of the <xref:System.Net.WebProxy.GetDefaultProxy%2A> method.  
 
-
+> [!NOTE]
+> This property is not supported on .NET Core.
 
 ## Examples  
  The following code example demonstrates calling this method.  
@@ -1157,6 +1158,7 @@
 
  ]]></format>
         </remarks>
+        <exception cref="T:System.PlatformNotSupportedException">On .NET Core.</exception>
       </Docs>
     </Member>
     <Member MemberName="GetObjectData">