模板导出能否支持嵌套类？ #839

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1. michelebastione commented on Jul 23, 2025

   

   michelebastione

   on Jul 23, 2025

   Collaborator

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   This is not supported at the moment and likely won't be worked on in the foreseeable future. If you could please share a sample of your code explaining what you're trying to achieve we might be able to suggest a workaround for you.
2. iyumot commented on Jul 30, 2025

   

   iyumot

   on Jul 30, 2025

   Last edited by iyumot

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   There is a temporary solution to expand nested classes into the class_property form. You need to modify the NeedExpand function.

   public static class ObjectToDictionaryConverter
   {
       public static Dictionary<string, object> ExpandToDictionary(this object obj)
       {
           if (obj == null) return new Dictionary<string, object>();
   
           var dictionary = new Dictionary<string, object>();
           var type = obj.GetType();
   
           foreach (var property in GetProperties(type))
           {
               var value = property.GetValue(obj);
   
               if (value == null)
               {
                   dictionary.Add(property.Name, null);
                   continue;
               }
               if (value is IEnumerable enumerable && !(value is string))
               {
                   var list = new List<object>();
                   foreach (var item in enumerable)
                   {
                       if (item is null)
                           continue;
                       else if (NeedExpand(item.GetType()))
                           list.Add(ExpandToDictionary(item));
                       else
                           list.Add((item));
                   }
                   dictionary.Add($"{property.Name}", list);
               }
               else if (NeedExpand(property.PropertyType))//(!IsSimpleType(property.PropertyType))
               {
                   var innerDict = ExpandToDictionary(value);
                   dictionary.Add($"{property.Name}", value.ToString() ?? "");
                   foreach (var innerPair in innerDict)
                   {
                       dictionary.Add($"{property.Name}_{innerPair.Key}", innerPair.Value);
                   }
               }
   
               else
                   dictionary.Add(property.Name, value);
           }
   
           return dictionary;
       }
   
       private static bool NeedExpand(Type type)
       {
           //if (type == typeof(CoolingPeriodInfo))
           ///     return false;
   
           if (type.FullName!.StartsWith("FMO"))
               return true;
   
           return false;
       }
   
       //private static bool IsSimpleType(Type type)
       //{
       //    // 处理可空类型
       //    if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable<>))
       //    {
       //        type = Nullable.GetUnderlyingType(type);
       //    }
   
       //    // 基本类型
       //    if (type.IsPrimitive ||
       //        type == typeof(string) ||
       //        type == typeof(decimal) ||
       //        type == typeof(DateTime) ||
       //        type == typeof(DateTimeOffset) ||
       //        type == typeof(TimeSpan) ||
       //        type == typeof(Guid) ||
       //        type.IsEnum)
       //    {
       //        return true;
       //    }
   
       //    // 数组和集合
       //    if (typeof(IEnumerable).IsAssignableFrom(type))
       //    {
       //        return true;
       //    }
   
       //    return false;
       //}
   
       private static IEnumerable<PropertyInfo> GetProperties(Type type)
       {
           return type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
       }
   }
   
   
3. michelebastione

   closed this as a duplicateof Template support multiple level collection expand #170 on Mar 13, 2026