Now you can ask questions directly to me on my new site ASPForums.
Net Question Answer site, specially started to allow visitors of this site ask their doubts and queries. Just click the Ask Now button and ask your question now.
, the connection to the database was continually maintained, unless explicitly closed.
It is also possible to work in a manner where a connection is only established when needed.
What I’ve tried to-do with the below set of tutorials is provide an end-to-end, step-by-step, walkthrough that covers all of the core concepts involved in creating and consuming a DAL built with the data designer. NET 2.0 together, you should be able to create a core DAL implementation and build from scratch a data-driven UI web app on top of an existing database very quickly (~10-15 minutes to build an application from scratch that supports master/details filtering along with data paging, sorting, insertion, and editing).
SQL Express databases within the App_Data directory will automatically show-up as a listed item in the Server Explorer property window (note: I sometimes get a timeout error the very first time I expand a newly copied sql express database here – I think because it is generating the log file the first time it is accessed.
In Lesson 4, we learned about how to read data quickly an let go of the connection with the Sql Data Reader.This Lesson shows how to accomplish something in-between Sql Connection and Sql Data Reader interaction by using the Data Set and Sql Data Adapter objects.A Data Set is an in-memory data store that can hold numerous tables.Data Sets only hold data and do not interact with a data source.It is the Sql Data Adapter that manages connections with the data source and gives us disconnected behavior.