[System.ComponentModel.DataObject]
来源:互联网 发布:网络心理误区 编辑:程序博客网 时间:2024/06/02 02:07
Accidentally,I saw "[System.ComponentModel.DataObject]" before a class or a method was declared, I just don't understand why need it. So I searched & ask my friends, then I got the answer.
It is used to identifies a data operation method exposed by a type, what type of operation the method performs, and whether the method is the default data method. This class cannot be inherited.
It has two constructor methods:
the first one is DataObjectMethodAttribute(DataObjectMethodType):Initializes a new instance of the DataObjectMethodAttribute class and identifies the type of data operation the method performs.
the other one is DataObjectMethodAttribute(DataObjectMethodType, Boolean):Initializes a new instance of the DataObjectMethodAttribute class, identifies the type of data operation the method performs, and identifies whether the method is the default data method that the data object exposes.
You can use the DataObjectMethodAttribute to identify data operation methods on a type marked with the DataObjectAttribute attribute so that they are more easily identified by callers using reflection. When the DataObjectMethodAttribute attribute is applied to a method, it describes the type of operation the method performs and indicates whether the method is the default data operation method of a type. Components such as the ObjectDataSource control and the ObjectDataSourceDesigner class examine the values of this attribute, if present, to help determine which data method to call at run time.
- [System.ComponentModel.DataObject]
- System.Diagnostics System.ComponentModel
- [System.ComponentModel.DesignerCategory("Code")]
- System.ComponentModel.Component入门
- System.ComponentModel.Component简介
- System.ComponentModel.Component入门
- System.ComponentModel.Win32Exception解决方案
- 错误:类型 System.ComponentModel.ISite ...
- System.ComponentModel.ComponentResourceManager resources作用?
- System.ComponentModel.Win32Exception: 拒绝访问。
- using System.ComponentModel.DataAnnotations
- System.ComponentModel.DataAnnotations.Schema 冲突
- [System.ComponentModel.DesignerCategory("Code")]的含义
- System.ComponentModel.AsyncOperation类 - 这个类很特别
- System.ComponentModel.DataAnnotations dll中标签的用法
- 类型“System.ComponentModel.PropertyChangedEventManager”未标记为可序列化
- “System.ComponentModel.Win32Exception配额不足,无法处理此命令。”问题
- using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; usin
- Meego wifi 测试
- poj 1904 King's Quest 二分图中强联通分量的运用
- Java Properties文件的读写
- find命令查找包含指定内容的文件
- surf匹配流程。。。
- [System.ComponentModel.DataObject]
- c++简单的学生管理系统----继承练习
- VC2010 STL 与 STLport 性能比较
- SQL2008报错“请验证实例名称是否正确并且SQL Server已配置为允许远程连接”
- 系统管理员设置了系统策略 禁止此运行
- 用比自己厉害的人,可能吗?
- 《Pro ASP.NET MVC 3 Framework》译文目录
- usaco overfencing
- 其实我是一只风筝