把一个类（或者Object）转换成字典

 1         internal static IDictionary<string, string> GetDictionary(this object source)
 2         {
 3             if (source == null)
 4             {
 5                 return new Dictionary<string, string>();
 6             }
 7             PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(source);
 8             Dictionary<string, string> dictionary = new Dictionary<string, string>();
 9             for (int i = 0; i < properties.Count; i++)
10             {
11                 dictionary.Add(properties[i].Name, properties[i].GetValue(source).ToString());
12             }
13             return dictionary;
14         }