Update modelGeneric.mustache (OpenAPITools#5378)

* Update modelGeneric.mustache

If maxlength is specified for a property type enum it there should be .ToString() appended before length check

* ran the csharp petstore bar and updated the file

Co-authored-by: Shweta Shukla <shshukl@microsoft.com>

Author: 2 people

modules/openapi-generator/src/main/resources/csharp/modelGeneric.mustache

@@ -259,22 +259,44 @@ this.{{name}} = {{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}};
             {{/parent}}
             {{#vars}}
             {{#hasValidation}}
+            {{#isEnum}}
+            {{#maxLength}}
+            // {{{name}}} ({{{dataType}}}) maxLength
+            if(this.{{{name}}} != null && this.{{{name}}}.ToString().Length > {{maxLength}})
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for {{{name}}}, length must be less than {{maxLength}}.", new [] { "{{{name}}}" });
+            }
+            {{/maxLength}}
+            {{/isEnum}}
+            {{^isEnum}}
             {{#maxLength}}
             // {{{name}}} ({{{dataType}}}) maxLength
             if(this.{{{name}}} != null && this.{{{name}}}.Length > {{maxLength}})
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for {{{name}}}, length must be less than {{maxLength}}.", new [] { "{{{name}}}" });
             }
-
             {{/maxLength}}
+            {{/isEnum}}
+
+			{{#isEnum}}
+            {{#minLength}}
+            // {{{name}}} ({{{dataType}}}) minLength
+            if(this.{{{name}}} != null && this.{{{name}}}.ToString().Length < {{minLength}})
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for {{{name}}}, length must be greater than {{minLength}}.", new [] { "{{{name}}}" });
+            }
+            {{/minLength}}
+            {{/isEnum}}
+            {{^isEnum}}
             {{#minLength}}
             // {{{name}}} ({{{dataType}}}) minLength
             if(this.{{{name}}} != null && this.{{{name}}}.Length < {{minLength}})
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for {{{name}}}, length must be greater than {{minLength}}.", new [] { "{{{name}}}" });
             }
-
             {{/minLength}}
+            {{/isEnum}}
+            
             {{#maximum}}
             // {{{name}}} ({{{dataType}}}) maximum
             if(this.{{{name}}} > ({{{dataType}}}){{maximum}})

samples/client/petstore/csharp/OpenAPIClient/src/Org.OpenAPITools/Model/FormatTest.cs

@@ -367,6 +367,8 @@ public override int GetHashCode()
         /// <returns>Validation Result</returns>
         IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
         {
+
+            
             // Integer (int) maximum
             if(this.Integer > (int)100)
             {
@@ -379,6 +381,8 @@ public override int GetHashCode()
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Integer, must be a value greater than or equal to 10.", new [] { "Integer" });
             }
 
+
+            
             // Int32 (int) maximum
             if(this.Int32 > (int)200)
             {
@@ -391,6 +395,8 @@ public override int GetHashCode()
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Int32, must be a value greater than or equal to 20.", new [] { "Int32" });
             }
 
+
+            
             // Number (decimal) maximum
             if(this.Number > (decimal)543.2)
             {
@@ -403,6 +409,8 @@ public override int GetHashCode()
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Number, must be a value greater than or equal to 32.1.", new [] { "Number" });
             }
 
+
+            
             // Float (float) maximum
             if(this.Float > (float)987.6)
             {
@@ -415,6 +423,8 @@ public override int GetHashCode()
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Float, must be a value greater than or equal to 54.3.", new [] { "Float" });
             }
 
+
+            
             // Double (double) maximum
             if(this.Double > (double)123.4)
             {
@@ -427,13 +437,17 @@ public override int GetHashCode()
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Double, must be a value greater than or equal to 67.8.", new [] { "Double" });
             }
 
+
+            
             // String (string) pattern
             Regex regexString = new Regex(@"[a-z]", RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
             if (false == regexString.Match(this.String).Success)
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for String, must match a pattern of " + regexString, new [] { "String" });
             }
 
+
+            
             // Password (string) maxLength
             if(this.Password != null && this.Password.Length > 64)
             {
@@ -445,7 +459,7 @@ public override int GetHashCode()
             {
                 yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Password, length must be greater than 10.", new [] { "Password" });
             }
-
+            
             yield break;
         }
     }