3). Add topic files 1 to 2

.openpublishing.redirection.json

@@ -19,7 +19,7 @@
     {
       "source_path": "docs/architecture/cloud-native/distributed-data.md",
       "redirect_url": "/dotnet/architecture/cloud-native/database-per-microservice"
-    },    
+    },
     {
       "source_path": "docs/architecture/microservices/architect-microservice-container-applications/communication-between-microservices.md",
       "redirect_url": "/dotnet/architecture/microservices/architect-microservice-container-applications/communication-in-microservice-architecture",
@@ -1204,6 +1204,11 @@
       "redirect_url": "/dotnet/standard/linq/sample-xsd-file-customers-orders",
       "redirect_document_id": true
     },
+    {
+      "source_path": "docs/csharp/programming-guide/concepts/linq/linq-to-xml-overview.md",
+      "redirect_url": "/dotnet/standard/linq/linq-xml-overview",
+      "redirect_document_id": true
+    },
     {
       "source_path": "docs/csharp/programming-guide/concepts/threading/how-to-use-a-thread-pool.md",
       "redirect_url": "/dotnet/api/system.threading.threadpool.queueuserworkitem"
@@ -3699,6 +3704,11 @@
       "source_path": "docs/standard/threading/reader-writer-locks.md",
       "redirect_url": "/dotnet/api/system.threading.readerwriterlockslim"
     },
+    {
+      "source_path": "docs/standard/using-linq.md",
+      "redirect_url": "/dotnet/standard/linq/index",
+      "redirect_document_id": true
+    },
     {
       "source_path": "docs/standard/threading/thread-suspend-garbage-collection-and-safe-points.md",
       "redirect_url": "/dotnet/api/system.threading.thread.suspend"
@@ -4158,6 +4168,10 @@
       "source_path": "docs/visual-basic/programming-guide/concepts/linq/sample-xsd-file-customers-and-orders.md",
       "redirect_url": "/dotnet/standard/linq/sample-xsd-file-customers-orders"
     },
+    {
+      "source_path": "docs/visual-basic/programming-guide/concepts/linq/linq-to-xml-overview.md",
+      "redirect_url": "/dotnet/standard/linq/linq-xml-overview"
+    },
     {
       "source_path": "docs/visual-basic/programming-guide/concepts/threading/how-to-use-a-thread-pool.md",
       "redirect_url": "/dotnet/api/system.threading.threadpool.queueuserworkitem"

docfx.json

@@ -516,7 +516,6 @@
         "docs/core/versions/**.md": ".NET Core",
         "docs/desktop-wpf/**/**.md": "WPF",
         "docs/machine-learning/**/**.md": "ML.NET",
-        "docs/standard/linq/**.md": ".NET",
         "docs/standard/data/sqlite/**/**.md": "Microsoft.Data.Sqlite",
         "docs/standard/design-guidelines/**/**.md": "Framework Design Guidelines",
         "docs/visual-basic/**/**.md": "Visual Basic"

docs/breadcrumb/toc.yml

@@ -96,6 +96,9 @@
       - name: File and stream I/O
         tocHref: /dotnet/standard/io/
         topicHref: /dotnet/standard/io/index
+      - name: LINQ
+        tocHref: /dotnet/standard/linq/
+        topicHref: /dotnet/standard/linq/index
       - name: Memory and span-related types
         tocHref: /dotnet/standard/memory-and-spans/
         topicHref: /dotnet/standard/memory-and-spans/index