Professional ASP.NET 1.1 [Electronic resources] نسخه متنی

Use a DataReader Instead of a DataSet

In general, the only times that a

DataSet must be used in preference to a

DataReader are:

When the data will be remoted (that is, sent as a disconnected package) to the client or a remote instance of the application or a component–for example, when using a web service that returns a

DataSet .

When you need to retrieve and store more than one set of rows, and, optionally, the relationships between them.

A

DataReader can be used as the source for data binding controls if required.