获取Object对象的Key值

获取Object对象的Key值

拓展方法：通过反射获取对象的属性值

public static object GetPropertyValue(this object info, string field)
        {
            if (info == null) return null;
            Type t = info.GetType();
            IEnumerable<System.Reflection.PropertyInfo> property = from pi in t.GetProperties() where pi.Name.ToLower() == field.ToLower() select pi;
            return property.First().GetValue(info, null);
        }