Updated HttpUtility ParseQueryString code snippets for C# and VB (#9342)

Author: JoanGil

snippets/csharp/VS_Snippets_WebNet/HttpUtility_ParseQueryString/cs/httputility_parsequerystring.aspx

@@ -0,0 +1,30 @@
+// <Snippet1>
+
+using System;
+using System.Web;
+
+class Program
+{
+    static void Main()
+    {
+        // Parse the URL and get the query string
+        var url = "https://www.microsoft.com?name=John&age=30&location=USA";
+        var parsedUrl = url.Split('?')[1];
+
+        // The ParseQueryString method will parse the query string and return a NameValueCollection
+        var paramsCollection = HttpUtility.ParseQueryString(parsedUrl);
+
+        // The foreach loop will iterate over the params collection and print the key and value for each param
+        foreach (var key in paramsCollection.AllKeys)
+        {
+            Console.WriteLine($"Key: {key} => Value: {paramsCollection[key]}");
+        }
+    }
+}
+
+// The example displays the following output:
+// Key: name => Value: John
+// Key: age => Value: 30
+// Key: location => Value: USA
+
+// </Snippet1>

snippets/csharp/VS_Snippets_WebNet/HttpUtility_ParseQueryString/cs/httputility_parsequerystring.cs

@@ -0,0 +1,27 @@
+' <Snippet1>
+
+Imports System.Collections.Specialized
+Imports System.Web
+
+Public Class Sample
+    Public Shared Sub Main()
+        ' Parse the URL and get the query string
+        Dim url As String = "https://www.microsoft.com?name=John&age=30&location=USA"
+        Dim parsedUrl As String = url.Split("?")(1)
+
+        ' The ParseQueryString method will parse the query string and return a NameValueCollection
+        Dim paramsCollection As NameValueCollection = HttpUtility.ParseQueryString(parsedUrl)
+
+        ' The For Each loop will iterate over the params collection and print the key and value for each param
+        For Each key As String In paramsCollection.AllKeys
+            Console.WriteLine($"Key: {key} => Value: {paramsCollection(key)}")
+        Next
+    End Sub
+End Class
+
+' The example displays the following output:
+' Key: name => Value: John
+' Key: age => Value: 30
+' Key: location => Value: USA
+
+' </Snippet1>

snippets/visualbasic/VS_Snippets_WebNet/HttpUtility_ParseQueryString/vb/httputility_parsequerystring.aspx

@@ -847,7 +847,7 @@
           <format type="text/markdown"><![CDATA[
 
 ## Remarks
- The <xref:System.Web.HttpUtility.ParseQueryString%2A> method uses <xref:System.Text.Encoding.UTF8%2A> format to parse the query string In the returned <xref:System.Collections.Specialized.NameValueCollection>, URL-encoded characters are decoded and multiple occurrences of the same query string parameter are listed as a single entry with a comma separating each value.
+ The <xref:System.Web.HttpUtility.ParseQueryString%2A> method uses <xref:System.Text.Encoding.UTF8%2A> format to parse the query string In the returned <xref:System.Collections.Specialized.NameValueCollection>, URL encoded characters are decoded and multiple occurrences of the same query string parameter are listed as a single entry with a comma separating each value.
 
 > [!IMPORTANT]
 >  The <xref:System.Web.HttpUtility.ParseQueryString%2A> method uses query strings that might contain user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see [Script Exploits Overview](https://docs.microsoft.com/previous-versions/aspnet/w1sw53ds(v=vs.100)).
@@ -857,8 +857,8 @@
 ## Examples
  The following code example demonstrates how to use the <xref:System.Web.HttpUtility.ParseQueryString%2A> method. Multiple occurrences of the same query string variable are consolidated in one entry of the returned <xref:System.Collections.Specialized.NameValueCollection>.
 
- :::code language="aspx-csharp" source="~/snippets/csharp/VS_Snippets_WebNet/HttpUtility_ParseQueryString/cs/httputility_parsequerystring.aspx" id="Snippet1":::
- :::code language="aspx-vb" source="~/snippets/visualbasic/VS_Snippets_WebNet/HttpUtility_ParseQueryString/vb/httputility_parsequerystring.aspx" id="Snippet1":::
+ :::code language="csharp" source="~/snippets/csharp/VS_Snippets_WebNet/HttpUtility_ParseQueryString/cs/httputility_parsequerystring.cs" interactive="try-dotnet" id="Snippet1":::
+ :::code language="vb" source="~/snippets/visualbasic/VS_Snippets_WebNet/HttpUtility_ParseQueryString/vb/httputility_parsequerystring.vb" id="Snippet1":::
 
  ]]></format>
         </remarks>
@@ -922,7 +922,7 @@
           <format type="text/markdown"><![CDATA[
 
 ## Remarks
- In the returned <xref:System.Collections.Specialized.NameValueCollection>, URL-encoded characters are decoded and multiple occurrences of the same query string parameter are listed as a single entry with a comma separating each value.
+ In the returned <xref:System.Collections.Specialized.NameValueCollection>, URL encoded characters are decoded and multiple occurrences of the same query string parameter are listed as a single entry with a comma separating each value.
 
 > [!IMPORTANT]
 >  The <xref:System.Web.HttpUtility.ParseQueryString%2A> method uses query strings that might contain user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see [Script Exploits Overview](https://docs.microsoft.com/previous-versions/aspnet/w1sw53ds(v=vs.100)).