diff --git a/Source/Engine/Core/Config.h b/Source/Engine/Core/Config.h
index 9c0d49122..feae02139 100644
--- a/Source/Engine/Core/Config.h
+++ b/Source/Engine/Core/Config.h
@@ -52,6 +52,6 @@
 #define API_EVENT(...)
 #define API_PARAM(...)
 #define API_TYPEDEF(...)
-#define API_INJECT_CPP_CODE(...)
+#define API_INJECT_CODE(...)
 #define API_AUTO_SERIALIZATION(...) public: void Serialize(SerializeStream& stream, const void* otherObj) override; void Deserialize(DeserializeStream& stream, ISerializeModifier* modifier) override;
 #define DECLARE_SCRIPTING_TYPE_MINIMAL(type) public: friend class type##Internal; static struct ScriptingTypeInitializer TypeInitializer;
diff --git a/Source/Engine/Platform/Base/ClipboardBase.h b/Source/Engine/Platform/Base/ClipboardBase.h
index ed7cf722b..709b6664e 100644
--- a/Source/Engine/Platform/Base/ClipboardBase.h
+++ b/Source/Engine/Platform/Base/ClipboardBase.h
@@ -7,7 +7,7 @@
 #include "Engine/Core/Types/StringView.h"
 #include "Engine/Core/Collections/Array.h"
 
-API_INJECT_CPP_CODE("#include \"Engine/Platform/Clipboard.h\"");
+API_INJECT_CODE(cpp, "#include \"Engine/Platform/Clipboard.h\"");
 
 /// <summary>
 /// Native platform clipboard service.
diff --git a/Source/Engine/Platform/Base/FileSystemBase.h b/Source/Engine/Platform/Base/FileSystemBase.h
index c99fd74da..782ff89b3 100644
--- a/Source/Engine/Platform/Base/FileSystemBase.h
+++ b/Source/Engine/Platform/Base/FileSystemBase.h
@@ -35,7 +35,7 @@ enum class SpecialFolder
     Temporary,
 };
 
-API_INJECT_CPP_CODE("#include \"Engine/Platform/FileSystem.h\"");
+API_INJECT_CODE(cpp, "#include \"Engine/Platform/FileSystem.h\"");
 
 /// <summary>
 /// Platform implementation of filesystem service.
diff --git a/Source/Engine/Platform/Base/NetworkBase.h b/Source/Engine/Platform/Base/NetworkBase.h
index 506edaa54..a18ad97ec 100644
--- a/Source/Engine/Platform/Base/NetworkBase.h
+++ b/Source/Engine/Platform/Base/NetworkBase.h
@@ -5,7 +5,7 @@
 #include "Engine/Core/Types/BaseTypes.h"
 #include "Engine/Core/Types/String.h"
 
-API_INJECT_CPP_CODE("#include \"Engine/Platform/Network.h\"");
+API_INJECT_CODE(cpp, "#include \"Engine/Platform/Network.h\"");
 
 /// <summary>
 /// Network connection protocol type.
diff --git a/Source/Engine/Platform/Base/PlatformBase.h b/Source/Engine/Platform/Base/PlatformBase.h
index 1c01bd0bc..0508cccd3 100644
--- a/Source/Engine/Platform/Base/PlatformBase.h
+++ b/Source/Engine/Platform/Base/PlatformBase.h
@@ -124,7 +124,7 @@ enum class ThreadPriority
 
 extern FLAXENGINE_API const Char* ToString(ThreadPriority value);
 
-API_INJECT_CPP_CODE("#include \"Engine/Platform/Platform.h\"");
+API_INJECT_CODE(cpp, "#include \"Engine/Platform/Platform.h\"");
 
 /// <summary>
 /// Runtime platform service.
diff --git a/Source/Engine/Platform/Base/UserBase.h b/Source/Engine/Platform/Base/UserBase.h
index bc60763c1..f486f5d35 100644
--- a/Source/Engine/Platform/Base/UserBase.h
+++ b/Source/Engine/Platform/Base/UserBase.h
@@ -5,7 +5,7 @@
 #include "Engine/Core/Types/String.h"
 #include "Engine/Scripting/ScriptingObject.h"
 
-API_INJECT_CPP_CODE("#include \"Engine/Platform/User.h\"");
+API_INJECT_CODE(cpp, "#include \"Engine/Platform/User.h\"");
 
 /// <summary>
 /// Native platform user object.
diff --git a/Source/Engine/Platform/Base/WindowBase.h b/Source/Engine/Platform/Base/WindowBase.h
index 7c1602f5c..638a7e84a 100644
--- a/Source/Engine/Platform/Base/WindowBase.h
+++ b/Source/Engine/Platform/Base/WindowBase.h
@@ -263,7 +263,7 @@ API_ENUM() enum class WindowHitCodes
     Help = 21,
 };
 
-API_INJECT_CPP_CODE("#include \"Engine/Platform/Window.h\"");
+API_INJECT_CODE(cpp, "#include \"Engine/Platform/Window.h\"");
 
 /// <summary>
 /// Native platform window object.
diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Api.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Api.cs
index 1d4dc8065..e8f98d401 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Api.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Api.cs
@@ -21,7 +21,7 @@ namespace Flax.Build.Bindings
             public const string Event = "API_EVENT";
             public const string Param = "API_PARAM";
             public const string Typedef = "API_TYPEDEF";
-            public const string InjectCppCode = "API_INJECT_CPP_CODE";
+            public const string InjectCode = "API_INJECT_CODE";
             public const string AutoSerialization = "API_AUTO_SERIALIZATION";
 
             public static readonly string[] SearchTags =
diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
index c9a48d1ed..207f543cc 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs
@@ -1383,6 +1383,17 @@ namespace Flax.Build.Bindings
                     GenerateCSharpEnum(buildData, contents, indent, enumInfo);
                 else if (type is InterfaceInfo interfaceInfo)
                     GenerateCSharpInterface(buildData, contents, indent, interfaceInfo);
+                else if (type is InjectCodeInfo injectCodeInfo && string.Equals(injectCodeInfo.Lang, "csharp", StringComparison.OrdinalIgnoreCase))
+                {
+                    // `using` directives needs to go above the generated code
+                    foreach(var code in injectCodeInfo.Code.Split(';'))
+                    {
+                        if (code.StartsWith("using"))
+                            CSharpUsedNamespaces.Add(code.Substring(6));
+                        else if (code.Length > 0)
+                            contents.Append(injectCodeInfo.Code).AppendLine(";");
+                    }
+                }
                 else
                     return false;
             }
diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cache.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cache.cs
index 8984d7e2a..ae4b71271 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cache.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cache.cs
@@ -19,7 +19,7 @@ namespace Flax.Build.Bindings
     partial class BindingsGenerator
     {
         private static readonly Dictionary<string, Type> TypeCache = new Dictionary<string, Type>();
-        private const int CacheVersion = 13;
+        private const int CacheVersion = 14;
 
         internal static void Write(BinaryWriter writer, string e)
         {
diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
index a75b13ea0..64a8ce9c2 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
@@ -2178,8 +2178,8 @@ namespace Flax.Build.Bindings
                     GenerateCppEnum(buildData, contents, moduleInfo, enumInfo);
                 else if (type is InterfaceInfo interfaceInfo)
                     GenerateCppInterface(buildData, contents, moduleInfo, interfaceInfo);
-                else if (type is InjectCppCodeInfo injectCppCodeInfo)
-                    contents.AppendLine(injectCppCodeInfo.Code);
+                else if (type is InjectCodeInfo injectCodeInfo && string.Equals(injectCodeInfo.Lang, "cpp", StringComparison.OrdinalIgnoreCase))
+                    contents.AppendLine(injectCodeInfo.Code);
             }
             catch
             {
diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Parsing.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Parsing.cs
index 565da0571..457787a22 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Parsing.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Parsing.cs
@@ -1310,13 +1310,12 @@ namespace Flax.Build.Bindings
             return desc;
         }
 
-        private static InjectCppCodeInfo ParseInjectCppCode(ref ParsingContext context)
+        private static InjectCodeInfo ParseInjectCode(ref ParsingContext context)
         {
             context.Tokenizer.ExpectToken(TokenType.LeftParent);
-            var desc = new InjectCppCodeInfo
-            {
-                Code = context.Tokenizer.ExpectToken(TokenType.String).Value.Replace("\\\"", "\""),
-            };
+            var desc = new InjectCodeInfo();
+            context.Tokenizer.SkipUntil(TokenType.Comma, out desc.Lang);
+            desc.Code = context.Tokenizer.ExpectToken(TokenType.String).Value.Replace("\\\"", "\"");
             desc.Code = desc.Code.Substring(1, desc.Code.Length - 2);
             context.Tokenizer.ExpectToken(TokenType.RightParent);
             return desc;
diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.cs
index 081b390c8..ad37850dd 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.cs
@@ -302,10 +302,10 @@ namespace Flax.Build.Bindings
                             var typeInfo = ParseTypedef(ref context);
                             fileInfo.AddChild(typeInfo);
                         }
-                        else if (string.Equals(token.Value, ApiTokens.InjectCppCode, StringComparison.Ordinal))
+                        else if (string.Equals(token.Value, ApiTokens.InjectCode, StringComparison.Ordinal))
                         {
-                            var injectCppCodeInfo = ParseInjectCppCode(ref context);
-                            fileInfo.AddChild(injectCppCodeInfo);
+                            var injectCodeInfo = ParseInjectCode(ref context);
+                            fileInfo.AddChild(injectCodeInfo);
                         }
                         else if (string.Equals(token.Value, ApiTokens.Interface, StringComparison.Ordinal))
                         {
@@ -560,7 +560,7 @@ namespace Flax.Build.Bindings
             return type is ClassInfo ||
                    type is StructureInfo ||
                    type is InterfaceInfo ||
-                   type is InjectCppCodeInfo;
+                   type is InjectCodeInfo;
         }
 
         /// <summary>
diff --git a/Source/Tools/Flax.Build/Bindings/InjectCppCodeInfo.cs b/Source/Tools/Flax.Build/Bindings/InjectCodeInfo.cs
similarity index 72%
rename from Source/Tools/Flax.Build/Bindings/InjectCppCodeInfo.cs
rename to Source/Tools/Flax.Build/Bindings/InjectCodeInfo.cs
index b7cef27b1..55d2356c6 100644
--- a/Source/Tools/Flax.Build/Bindings/InjectCppCodeInfo.cs
+++ b/Source/Tools/Flax.Build/Bindings/InjectCodeInfo.cs
@@ -5,14 +5,16 @@ using System.IO;
 namespace Flax.Build.Bindings
 {
     /// <summary>
-    /// The custom C++ code injection information for bindings generator.
+    /// The custom C++/C# code injection information for bindings generator.
     /// </summary>
-    public class InjectCppCodeInfo : ApiTypeInfo
+    public class InjectCodeInfo : ApiTypeInfo
     {
+        public string Lang;
         public string Code;
 
         public override void Write(BinaryWriter writer)
         {
+            writer.Write(Lang);
             writer.Write(Code);
 
             base.Write(writer);
@@ -20,6 +22,7 @@ namespace Flax.Build.Bindings
 
         public override void Read(BinaryReader reader)
         {
+            Lang = reader.ReadString();
             Code = reader.ReadString();
 
             base.Read(reader);
diff --git a/Source/Tools/Flax.Build/Flax.Build.csproj b/Source/Tools/Flax.Build/Flax.Build.csproj
index 61fda8b97..27770cd87 100644
--- a/Source/Tools/Flax.Build/Flax.Build.csproj
+++ b/Source/Tools/Flax.Build/Flax.Build.csproj
@@ -76,7 +76,7 @@
     <Compile Include="Bindings\FieldInfo.cs" />
     <Compile Include="Bindings\FileInfo.cs" />
     <Compile Include="Bindings\InheritanceInfo.cs" />
-    <Compile Include="Bindings\InjectCppCodeInfo.cs" />
+    <Compile Include="Bindings\InjectCodeInfo.cs" />
     <Compile Include="Bindings\InterfaceInfo.cs" />
     <Compile Include="Bindings\LangType.cs" />
     <Compile Include="Bindings\MemberInfo.cs" />