diff --git a/modules/openapi-generator/src/main/resources/csharp-netcore/ApiClient.mustache b/modules/openapi-generator/src/main/resources/csharp-netcore/ApiClient.mustache
index 5bd04c55670..a919c37996f 100644
--- a/modules/openapi-generator/src/main/resources/csharp-netcore/ApiClient.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp-netcore/ApiClient.mustache
@@ -514,6 +514,10 @@ namespace {{packageName}}.Client
             {
                 response.Data = (T)(object)response.RawBytes;
             }
+            else if (typeof(T).Name == "String") // for string response
+            {
+                response.Data = (T)(object)response.Content;
+            }
 
             InterceptResponse(req, response);
 
diff --git a/samples/client/others/csharp-netcore-complex-files/src/Org.OpenAPITools/Client/ApiClient.cs b/samples/client/others/csharp-netcore-complex-files/src/Org.OpenAPITools/Client/ApiClient.cs
index ab2eaa766ec..4706ebce003 100644
--- a/samples/client/others/csharp-netcore-complex-files/src/Org.OpenAPITools/Client/ApiClient.cs
+++ b/samples/client/others/csharp-netcore-complex-files/src/Org.OpenAPITools/Client/ApiClient.cs
@@ -497,6 +497,10 @@ namespace Org.OpenAPITools.Client
             {
                 response.Data = (T)(object)response.RawBytes;
             }
+            else if (typeof(T).Name == "String") // for string response
+            {
+                response.Data = (T)(object)response.Content;
+            }
 
             InterceptResponse(req, response);
 
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools/Client/ApiClient.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools/Client/ApiClient.cs
index 41df3d29bcf..b488b996d08 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools/Client/ApiClient.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools/Client/ApiClient.cs
@@ -512,6 +512,10 @@ namespace Org.OpenAPITools.Client
             {
                 response.Data = (T)(object)response.RawBytes;
             }
+            else if (typeof(T).Name == "String") // for string response
+            {
+                response.Data = (T)(object)response.Content;
+            }
 
             InterceptResponse(req, response);
 
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Client/ApiClient.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Client/ApiClient.cs
index fb2acf28a9b..660dcd3a055 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Client/ApiClient.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net47/src/Org.OpenAPITools/Client/ApiClient.cs
@@ -513,6 +513,10 @@ namespace Org.OpenAPITools.Client
             {
                 response.Data = (T)(object)response.RawBytes;
             }
+            else if (typeof(T).Name == "String") // for string response
+            {
+                response.Data = (T)(object)response.Content;
+            }
 
             InterceptResponse(req, response);
 
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiClient.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiClient.cs
index fb2acf28a9b..660dcd3a055 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiClient.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient-net5.0/src/Org.OpenAPITools/Client/ApiClient.cs
@@ -513,6 +513,10 @@ namespace Org.OpenAPITools.Client
             {
                 response.Data = (T)(object)response.RawBytes;
             }
+            else if (typeof(T).Name == "String") // for string response
+            {
+                response.Data = (T)(object)response.Content;
+            }
 
             InterceptResponse(req, response);
 
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/ApiClient.cs b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/ApiClient.cs
index 41df3d29bcf..b488b996d08 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/ApiClient.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClient/src/Org.OpenAPITools/Client/ApiClient.cs
@@ -512,6 +512,10 @@ namespace Org.OpenAPITools.Client
             {
                 response.Data = (T)(object)response.RawBytes;
             }
+            else if (typeof(T).Name == "String") // for string response
+            {
+                response.Data = (T)(object)response.Content;
+            }
 
             InterceptResponse(req, response);
 
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/ApiClient.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/ApiClient.cs
index fb2acf28a9b..660dcd3a055 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/ApiClient.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCore/src/Org.OpenAPITools/Client/ApiClient.cs
@@ -513,6 +513,10 @@ namespace Org.OpenAPITools.Client
             {
                 response.Data = (T)(object)response.RawBytes;
             }
+            else if (typeof(T).Name == "String") // for string response
+            {
+                response.Data = (T)(object)response.Content;
+            }
 
             InterceptResponse(req, response);
 
diff --git a/samples/client/petstore/csharp-netcore/OpenAPIClientCoreAndNet47/src/Org.OpenAPITools/Client/ApiClient.cs b/samples/client/petstore/csharp-netcore/OpenAPIClientCoreAndNet47/src/Org.OpenAPITools/Client/ApiClient.cs
index 92dc7dc97f3..3d9182b8906 100644
--- a/samples/client/petstore/csharp-netcore/OpenAPIClientCoreAndNet47/src/Org.OpenAPITools/Client/ApiClient.cs
+++ b/samples/client/petstore/csharp-netcore/OpenAPIClientCoreAndNet47/src/Org.OpenAPITools/Client/ApiClient.cs
@@ -512,6 +512,10 @@ namespace Org.OpenAPITools.Client
             {
                 response.Data = (T)(object)response.RawBytes;
             }
+            else if (typeof(T).Name == "String") // for string response
+            {
+                response.Data = (T)(object)response.Content;
+            }
 
             InterceptResponse(req, response);