c# net 使用反射為對象賦值

public T Bson2T(MongoDB.Bson.BsonDocument bson)
        {
            T t = default(T);

            //獲取T類中的所有屬性
            PropertyInfo[] TpropertyInfo = typeof(T).GetProperties(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic);

            //用反射自動創建泛型對象
            t=System.Activator.CreateInstance<T>();

            foreach (PropertyInfo pInfo in TpropertyInfo)
            {
                string pInfo_name=pInfo.Name;

                //PropertyInfo bsonPropertyInfo= bson.GetType().GetProperty(pInfo_name);

                //object bsonValue=bsonPropertyInfo.GetValue(bson,null);

                object bsonValue = BsonGetValue(bson.ToString(), pInfo_name);

                //給屬性賦值
                pInfo.SetValue((object)t,bsonValue,null);
            }
            return t;