kreta/KretaWeb/Helpers/Extension/ModelStateExtension.cs

using System.Collections.Generic;
using System.Web.Http.ModelBinding;

namespace Kreta.Web.Helpers
{
    public static class ModelStateExtension
    {
        public static void AddRange(this ModelStateDictionary modelStateDictionary, Dictionary<string, string> dictionary)
        {
            foreach (KeyValuePair<string, string> item in dictionary)
            {
                modelStateDictionary.AddModelError(item.Key, item.Value);
            }
        }

        public static void AddRange(this ModelStateDictionary modelStateDictionary, Dictionary<string, List<string>> dictionary)
        {
            foreach (KeyValuePair<string, List<string>> item in dictionary)
            {
                foreach (string value in item.Value)
                {
                    modelStateDictionary.AddModelError(item.Key, value);
                }
            }
        }
    }
}