C# 从protobuf中的FieldDescriptor获取消息

在protobuf（C#）中，我想打印不同消息和子消息中的所有字段。如何获取消息类型并再次发送到函数（递归遍历到最低的子级）？更具体地说：我必须做的是，fieldDescriptor像消息一样发送？我搜索解决方案，即“更改”

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我发现一个孤独的地方。如果未设置子消息内的任何值，则HasValue return false。然后我必须创建一个具有所有默认值的新Imessage。因此，这段代码用于打印所有消息和子消息中的所有字段名

private void PrintAllReportableFieldsinMessage(Google.Protobuf.IMessage message)
{
    foreach (var fieldDescriptor in message.Descriptor.Fields.InFieldNumberOrder())
    {
        if (fieldDescriptor.FieldType == Google.Protobuf.Reflection.FieldType.Message)
        {
            if (fieldDescriptor.Accessor.HasValue(message))
            {
                IMessage submessage = fieldDescriptor.Accessor.GetValue(message) as IMessage;
                PrintAllReportableFieldsinMessage(submessage);
            }
            else {
                IMessage cleanSubmessage = fieldDescriptor.MessageType.Parser.ParseFrom(ByteString.Empty);
                PrintAllReportableFieldsinMessage(cleanSubmessage);
            }
        }
        else
        {
            Google.Protobuf.Reflection.FieldOptions options = fieldDescriptor.GetOptions();
            if (options != null && options.GetExtension(HelloworldExtensions.Reportable))
            {
                var fieldValue = fieldDescriptor.Accessor.GetValue(message);
                var fieldName = fieldDescriptor.Name;
                Dispatcher.Invoke(() =>
                {
                    lReadableResult.Content += fieldName + ":" + fieldValue + "|";
                });
            }
        }
    }
}

private void PrintAllReportableFieldsinMessage(Google.Protobuf.IMessage message)
{
    foreach (var fieldDescriptor in message.Descriptor.Fields.InFieldNumberOrder())
    {
        if (fieldDescriptor.FieldType == Google.Protobuf.Reflection.FieldType.Message)
        {
            if (fieldDescriptor.Accessor.HasValue(message))
            {
                IMessage submessage = fieldDescriptor.Accessor.GetValue(message) as IMessage;
                PrintAllReportableFieldsinMessage(submessage);
            }
            else {
                IMessage cleanSubmessage = fieldDescriptor.MessageType.Parser.ParseFrom(ByteString.Empty);
                PrintAllReportableFieldsinMessage(cleanSubmessage);
            }
        }
        else
        {
            Google.Protobuf.Reflection.FieldOptions options = fieldDescriptor.GetOptions();
            if (options != null && options.GetExtension(HelloworldExtensions.Reportable))
            {
                var fieldValue = fieldDescriptor.Accessor.GetValue(message);
                var fieldName = fieldDescriptor.Name;
                Dispatcher.Invoke(() =>
                {
                    lReadableResult.Content += fieldName + ":" + fieldValue + "|";
                });
            }
        }
    }
}