November 2007
Beginner
954 pages
25h 7m
English
book
Beginning ASP.NET 3.5 in C# 2008: From Novice to Professional, Second Edition
by Matthew MacDonald
Content preview from Beginning ASP.NET 3.5 in C# 2008: From Novice to Professional, Second Edition
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15.6. Disconnected Data Access
When you use disconnected data access, you keep a copy of your data in memory using the DataSet. You connect to the database just long enough to fetch your data and dump it into the DataSet, and then you disconnect immediately.
There are a variety of good reasons to use the DataSet to hold onto data in memory. Here are a few:
You need to do something time-consuming with the data. By dumping it into a DataSet first, you ensure that the database connection is kept open for as little time as possible.
You want to use ASP.NET data binding to fill a web control (like a grid) with your data. Although you can use the DataReader, it won't work in all scenarios. The DataSet approach is more straightforward.
You want to navigate ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.