diff --git a/modules/openapi-generator/src/main/resources/csharp-netcore/modelAnyOf.mustache b/modules/openapi-generator/src/main/resources/csharp-netcore/modelAnyOf.mustache
index a808b9c161a..7e318b309c9 100644
--- a/modules/openapi-generator/src/main/resources/csharp-netcore/modelAnyOf.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp-netcore/modelAnyOf.mustache
@@ -1,3 +1,4 @@
+{{#model}}
     /// <summary>
     /// {{description}}{{^description}}{{classname}}{{/description}}
     /// </summary>
@@ -22,20 +23,22 @@
         }
 
         {{/isNullable}}
-        {{#anyOf}}
+        {{#composedSchemas.anyOf}}
+        {{^isNull}}
         /// <summary>
         /// Initializes a new instance of the <see cref="{{classname}}" /> class
-        /// with the <see cref="{{#lambdaCref}}{{{.}}}{{/lambdaCref}}" /> class
+        /// with the <see cref="{{#lambdaCref}}{{{dataType}}}{{/lambdaCref}}" /> class
         /// </summary>
-        /// <param name="actualInstance">An instance of {{{.}}}.</param>
-        public {{classname}}({{{.}}} actualInstance)
+        /// <param name="actualInstance">An instance of {{dataType}}.</param>
+        public {{classname}}({{{dataType}}} actualInstance)
         {
-            this.IsNullable = {{#isNullable}}true{{/isNullable}}{{^isNullable}}false{{/isNullable}};
+            this.IsNullable = {{#model.isNullable}}true{{/model.isNullable}}{{^model.isNullable}}false{{/model.isNullable}};
             this.SchemaType= "anyOf";
-            this.ActualInstance = actualInstance{{^isNullable}} ?? throw new ArgumentException("Invalid instance found. Must not be null."){{/isNullable}};
+            this.ActualInstance = actualInstance{{^model.isNullable}}{{^isPrimitiveType}} ?? throw new ArgumentException("Invalid instance found. Must not be null."){{/isPrimitiveType}}{{#isPrimitiveType}}{{#isArray}} ?? throw new ArgumentException("Invalid instance found. Must not be null."){{/isArray}}{{/isPrimitiveType}}{{#isPrimitiveType}}{{#isFreeFormObject}} ?? throw new ArgumentException("Invalid instance found. Must not be null."){{/isFreeFormObject}}{{/isPrimitiveType}}{{#isPrimitiveType}}{{#isString}} ?? throw new ArgumentException("Invalid instance found. Must not be null."){{/isString}}{{/isPrimitiveType}}{{/model.isNullable}};
         }
 
-        {{/anyOf}}
+        {{/isNull}}
+        {{/composedSchemas.anyOf}}
 
         private Object _actualInstance;
 
@@ -62,18 +65,20 @@
                 }
             }
         }
-        {{#anyOf}}
+        {{#composedSchemas.anyOf}}
+        {{^isNull}}
 
         /// <summary>
-        /// Get the actual instance of `{{{.}}}`. If the actual instance is not `{{{.}}}`,
+        /// Get the actual instance of `{{dataType}}`. If the actual instance is not `{{dataType}}`,
         /// the InvalidClassException will be thrown
         /// </summary>
-        /// <returns>An instance of {{{.}}}</returns>
-        public {{{.}}} Get{{{.}}}()
+        /// <returns>An instance of {{dataType}}</returns>
+        public {{{dataType}}} Get{{#lambda.titlecase}}{{baseType}}{{/lambda.titlecase}}{{#isArray}}{{#lambda.titlecase}}{{{dataFormat}}}{{/lambda.titlecase}}{{/isArray}}()
         {
-            return ({{{.}}})this.ActualInstance;
+            return ({{{dataType}}})this.ActualInstance;
         }
-        {{/anyOf}}
+        {{/isNull}}
+        {{/composedSchemas.anyOf}}
 
         /// <summary>
         /// Returns the string presentation of the object
@@ -233,3 +238,4 @@
             return false;
         }
     }
+{{/model}}
\ No newline at end of file