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docs/error-messages/compiler-errors-1/compiler-error-c2039.md

@@ -1,20 +1,19 @@
 ---
 description: "Learn more about: Compiler Error C2039"
 title: "Compiler Error C2039"
-ms.date: "11/04/2016"
+ms.date: "8/1/2023"
 f1_keywords: ["C2039"]
 helpviewer_keywords: ["C2039"]
-ms.assetid: f9dfd521-9b36-4454-a69c-d63f45b606bb
 ---
 # Compiler Error C2039
 
-'identifier1' : is not a member of 'identifier2'
+`'identifier1' : is not a member of 'identifier2'`
 
 The code incorrectly calls or refers to a member of a structure, class, or union.
 
 ## Examples
 
-The following sample generates C2039.
+The following sample generates C2039:
 
 ```cpp
 // C2039.cpp
@@ -28,7 +27,7 @@ int main() {
 }
 ```
 
-The following sample generates C2039.
+The following sample generates C2039:
 
 ```cpp
 // C2039_b.cpp
@@ -41,7 +40,7 @@ int main() {
 }
 ```
 
-The following sample generates C2039.
+The following sample generates C2039:
 
 ```cpp
 // C2039_c.cpp
@@ -57,9 +56,9 @@ int S::get_Count() { return 0; }   // C2039
 int S::Count::get() { return 0; }   // OK
 ```
 
-C2039 can also occur if you attempt to access a default indexer incorrectly. The following sample defines a component authored in C#.
+C2039 can also occur if you attempt to access a default indexer incorrectly. To demonstrate, this code defines a C# component that is used by the C++/CLI code that follows:
 
-```
+```c#
 // C2039_d.cs
 // compile with: /target:library
 // a C# program
@@ -72,7 +71,7 @@ public class B {
 };
 ```
 
-The following sample generates C2039.
+The following sample generates C2039 when it uses the previously defined C# component's default indexer incorrectly from C++/CLI:
 
 ```cpp
 // C2039_e.cpp
@@ -89,7 +88,7 @@ int main() {
 }
 ```
 
-C2039 can also occur if you use generics. The following sample generates C2039.
+C2039 can also occur if you use generics. The following sample generates C2039:
 
 ```cpp
 // C2039_f.cpp
@@ -114,7 +113,7 @@ int main() {
 
 C2039 can occur when you try to release managed or unmanaged resources. For more information, see [Destructors and finalizers](../../dotnet/how-to-define-and-consume-classes-and-structs-cpp-cli.md#BKMK_Destructors_and_finalizers).
 
-The following sample generates C2039.
+The following sample generates C2039:
 
 ```cpp
 // C2039_g.cpp