skip pattern check for byte array in C# (#6048)

Author: wing328

modules/swagger-codegen/src/main/resources/csharp/modelGeneric.mustache

@@ -241,13 +241,15 @@ this.{{name}} = {{name}};
 
             {{/minimum}}
             {{#pattern}}
+            {{^isByteArray}}
             // {{{name}}} ({{{datatype}}}) pattern
             Regex regex{{{name}}} = new Regex(@"{{{vendorExtensions.x-regex}}}"{{#vendorExtensions.x-modifiers}}{{#-first}}, {{/-first}}RegexOptions.{{{.}}}{{^-last}} | {{/-last}}{{/vendorExtensions.x-modifiers}});
             if (false == regex{{{name}}}.Match(this.{{{name}}}).Success)
             {
-                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for {{{name}}}, must match a pattern of {{{pattern}}}.", new [] { "{{{name}}}" });
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for {{{name}}}, must match a pattern of " + regex{{{name}}}, new [] { "{{{name}}}" });
             }
 
+            {{/isByteArray}}
             {{/pattern}}
             {{/hasValidation}}
             {{/vars}}

samples/client/petstore/csharp/SwaggerClient/src/IO.Swagger/Model/FormatTest.cs

@@ -415,7 +415,7 @@ public override int GetHashCode()
             Regex regex_String = new Regex(@"[a-z]", RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
             if (false == regex_String.Match(this._String).Success)
             {
-                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for _String, must match a pattern of /[a-z]/i.", new [] { "_String" });
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for _String, must match a pattern of " + regex_String, new [] { "_String" });
             }
 
             // _Byte (byte[]) pattern

samples/client/petstore/csharp/SwaggerClientWithPropertyChanged/src/IO.Swagger/Model/FormatTest.cs

@@ -438,7 +438,7 @@ public virtual void OnPropertyChanged(string propertyName)
             Regex regex_String = new Regex(@"[a-z]", RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
             if (false == regex_String.Match(this._String).Success)
             {
-                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for _String, must match a pattern of /[a-z]/i.", new [] { "_String" });
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for _String, must match a pattern of " + regex_String, new [] { "_String" });
             }
 
             // _Byte (byte[]) pattern