Command:执行数据库命令 DataAdapter:连接数据 DataSet:获取数据的缓存 DataReader:只读数据库 13 序列化与反序列化的数据转换,如Json,Xml,DataTable,泛型之间的转换,做过哪些,需要用哪些技术手段。 是否做过这些转换的工具类。 C#中使用Serialize和Deserialize进行序列化和反序列化。 14 ...

DataAdapter 对象是一个数据适配器对象，是DataSet 与数据源之间的桥梁。DataAdapter 对像提供了 4 个属性，用于实现与数据源之间的互通。 SelectCommand 属性：向数据库发送查询 SQL 语句。 DeleteCommand 属性：向数据库发送删除 SQL语句 ...

Why is there no such type as DataAdapter? The CreateDataAdapter method is also not instantiated。I need to use it now, is there any alternative?

The SourceVersion specifies the DataRow version that the DataAdapter uses to retrieve the value. The following table shows the xref:System.Data.DataRowVersion enumeration values available for use with ...

When working with ADO.Net in disconnected mode of operation, you would typically leverage DataAdapter, DataSet, DataTable and DataTableReader. While the DataAdapter acts as a bridge between the ...

By Xiaodong Liang In the last post, we leant how to create a database table. Now let us take a look the usage of add rows and query the table. To add a row, we need to prepare the value of each column ...

By Balaji Ramamoorthy The "EATTEXT" command in AutoCAD can extract data such as attribute text and display it inside a table. Here is a sample code to do it programmatically using the DataExtraction ...

利用DataAdapter对象，可以设置UpdateCommand，InsertCommand以及DeleteCommand属性来调用存储过程，这些存储过程将修改、添加或删除数据库中相应表的数据行。 然后可以只调用DataAdapter对象的Update方法，ADO.NET就会使用所创建的Command对象向数据库提交DataSet中缓存的更改。

这里讲解了AOP.NET DataAdapter对象表示一组数据命令和一个数据库连接，用于填充DataSet对象和更新数据源，文章有详细的图片演示。