diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/formParam.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/formParam.mustache
index 2d42dc2916ba..fbd2d815d58d 100644
--- a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/formParam.mustache
+++ b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/formParam.mustache
@@ -1 +1 @@
-{{#isFormParam}}[FromForm]{{#required}}[Required()]{{/required}}{{#pattern}}[RegularExpression("{{{pattern}}}")]{{/pattern}}{{#minLength}}{{#maxLength}}[StringLength({{maxLength}}, MinimumLength={{minLength}}){{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}} [MinLength({{minLength}})]{{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}} [MaxLength({{maxLength}})]{{/maxLength}}{{/minLength}}{{#minimum}}{{#maximum}}[Range({{minimum}}, {{maximum}})]{{/maximum}}{{/minimum}}{{&dataType}} {{paramName}}{{/isFormParam}}
\ No newline at end of file
+{{#isFormParam}}[FromForm]{{#required}}[Required()]{{/required}}{{#pattern}}[RegularExpression("{{{pattern}}}")]{{/pattern}}{{#minLength}}{{#maxLength}}[StringLength({{maxLength}}, MinimumLength={{minLength}})]{{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}} [MinLength({{minLength}})]{{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}} [MaxLength({{maxLength}})]{{/maxLength}}{{/minLength}}{{#minimum}}{{#maximum}}[Range({{minimum}}, {{maximum}})]{{/maximum}}{{/minimum}}{{&dataType}} {{paramName}}{{/isFormParam}}
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diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/headerParam.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/headerParam.mustache
index 45a5be9d7b5b..a3a929904c62 100644
--- a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/headerParam.mustache
+++ b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/headerParam.mustache
@@ -1 +1 @@
-{{#isHeaderParam}}[FromHeader]{{#required}}[Required()]{{/required}}{{#pattern}}[RegularExpression("{{{pattern}}}")]{{/pattern}}{{#minLength}}{{#maxLength}}[StringLength({{maxLength}}, MinimumLength={{minLength}}){{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}} [MinLength({{minLength}})]{{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}} [MaxLength({{maxLength}})]{{/maxLength}}{{/minLength}}{{#minimum}}{{#maximum}}[Range({{minimum}}, {{maximum}})]{{/maximum}}{{/minimum}}{{&dataType}} {{paramName}}{{/isHeaderParam}}
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+{{#isHeaderParam}}[FromHeader]{{#required}}[Required()]{{/required}}{{#pattern}}[RegularExpression("{{{pattern}}}")]{{/pattern}}{{#minLength}}{{#maxLength}}[StringLength({{maxLength}}, MinimumLength={{minLength}})]{{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}} [MinLength({{minLength}})]{{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}} [MaxLength({{maxLength}})]{{/maxLength}}{{/minLength}}{{#minimum}}{{#maximum}}[Range({{minimum}}, {{maximum}})]{{/maximum}}{{/minimum}}{{&dataType}} {{paramName}}{{/isHeaderParam}}
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diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/model.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/model.mustache
index bf1cb3902fc3..4d0eac51c369 100644
--- a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/model.mustache
+++ b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/model.mustache
@@ -21,16 +21,14 @@ namespace {{modelPackage}}
     { {{#vars}}{{#isEnum}}{{>enumClass}}{{/isEnum}}{{#items.isEnum}}{{#items}}{{>enumClass}}{{/items}}{{/items.isEnum}}
         /// <summary>
         /// {{^description}}Gets or Sets {{{name}}}{{/description}}{{#description}}{{description}}{{/description}}
-        /// </summary>
-        {{#description}}
-        /// <value>{{description}}</value>
-        {{/description}}
-        {{#required}}
-        [Required]
-        {{/required}}
-        {{#pattern}}
-        [RegularExpression("{{{pattern}}}")]
-        {{/pattern}}
+        /// </summary>{{#description}}
+        /// <value>{{description}}</value>{{/description}}{{#required}}
+        [Required]{{/required}}{{#pattern}}
+        [RegularExpression("{{{pattern}}}")]{{/pattern}}{{#minLength}}{{#maxLength}}
+        [StringLength({{maxLength}}, MinimumLength={{minLength}})]{{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}}
+        [MinLength({{minLength}})]{{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}}
+        [MaxLength({{maxLength}})]{{/maxLength}}{{/minLength}}{{#minimum}}{{#maximum}}
+        [Range({{minimum}}, {{maximum}})]{{/maximum}}{{/minimum}}
         [DataMember(Name="{{baseName}}", EmitDefaultValue={{#isNullable}}true{{/isNullable}}{{^isNullable}}false{{/isNullable}})]
         {{#isEnum}}
         public {{{datatypeWithEnum}}}{{#isEnum}}{{^isContainer}}?{{/isContainer}}{{/isEnum}} {{name}} { get; set; }{{#defaultValue}} = {{{defaultValue}}};{{/defaultValue}}
diff --git a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/queryParam.mustache b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/queryParam.mustache
index e9fa09b005d3..c454950bd147 100644
--- a/modules/openapi-generator/src/main/resources/aspnetcore/2.1/queryParam.mustache
+++ b/modules/openapi-generator/src/main/resources/aspnetcore/2.1/queryParam.mustache
@@ -1 +1 @@
-{{#isQueryParam}}[FromQuery]{{#required}}[Required()]{{/required}}{{#pattern}}[RegularExpression("{{{pattern}}}")]{{/pattern}}{{#minLength}}{{#maxLength}}[StringLength({{maxLength}}, MinimumLength={{minLength}}){{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}} [MinLength({{minLength}})]{{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}} [MaxLength({{maxLength}})]{{/maxLength}}{{/minLength}}{{#minimum}}{{#maximum}}[Range({{minimum}}, {{maximum}})]{{/maximum}}{{/minimum}}{{&dataType}} {{paramName}}{{/isQueryParam}}
\ No newline at end of file
+{{#isQueryParam}}[FromQuery]{{#required}}[Required()]{{/required}}{{#pattern}}[RegularExpression("{{{pattern}}}")]{{/pattern}}{{#minLength}}{{#maxLength}}[StringLength({{maxLength}}, MinimumLength={{minLength}})]{{/maxLength}}{{/minLength}}{{#minLength}}{{^maxLength}} [MinLength({{minLength}})]{{/maxLength}}{{/minLength}}{{^minLength}}{{#maxLength}} [MaxLength({{maxLength}})]{{/maxLength}}{{/minLength}}{{#minimum}}{{#maximum}}[Range({{minimum}}, {{maximum}})]{{/maximum}}{{/minimum}}{{&dataType}} {{paramName}}{{/isQueryParam}}
\ No newline at end of file