您只需建立一个数据源对象，提供连接字符串和查询文本，为GridView的DataSourceId属性分配数据源id。

You set up a data source object, provide the connection string and query text, and assign the id of the data source to the DataSourceId property of the GridView.

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字典在常见文本字符串和整数之间建立映射，并为压缩和解压缩xml提供一种有效的机制。

Dictionaries establish a mapping between commonly appearing text strings, and integers, and provide an effective mechanism for compressing and decompressing XML.

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