By Mahesh Chand
A Programmer's advisor to ADO.NET in C# starts by means of taking readers via a fast paced evaluation of C# after which delves into ADO.NET. Why should still C# programmers use it rather than the prevailing applied sciences? What new performance does it supply? The chapters that persist with wade through the main points on all the significant info companies of the .NET platform (OleDb, SQL Server, and ODBC) that provide help to learn and write info to the detailed database. those chapters additionally function an excellent reference for taking a look up certain tools and homes for those information supplier periods. Authors Chand and Gold additionally exhibit C# programmers the right way to paintings with XML sessions and the way to combine XML into the ADO.NET architecture.
The publication presents programmers with convenient principles approximately benefiting from the VS.NET IDE and the way you could tie your info to the myriad of strong controls together with the multi-faceted facts Grid. ultimately, it is going via making a visitor e-book software for the net so that you can see how every thing healthy jointly.
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Extra resources for A programmer's guide to ADO. NET in C#
If you turn off the Use Optimistic Concurrency option, the WHERE clause only contains the primary key and no original parameter data is generated. You can probably turn this off to speed things up if the application is only for a single user. Below are the differences between the Select statements generated with optimistic concurrency on and off. , ShipCity = ? )”+ “AND (OrderDate = ? OR ? IS NULL AND OrderDate IS NULL) AND “+ “(RequiredDate = ? OR ? IS NULL AND RequiredDate IS NULL) AND “+ “(ShipAddress = ?
It’s generated all of the commands for the adapter, all of the mappings, and, although not indicated, all of the parameters. Figure 4-43. View Wizard Results page of the Data Adapter Configuration Wizard If you examine the form designer, you’ll see the wizard added two components to your form: oleDbConnection1 and oleDbDataAdapter1. The source code generated by the wizard is similar to the source generated for the SqlDataAdapter. You’ll notice differences, though, in the ConnectionString and the parameters if you were to go through the same process with a SqlDataAdapter.
Now, let’s take a quick look at OleDb data adapters. Actually, all data adapters (Sql, OleDb, and ODBC) work exactly the same way. I’ll take you through a quick step-by-step tutorial on how to use OldDb data adapters. To give you more of a variety, you’re going to use OleDb with an Access 2000 database. NET is to add a new connection using the Server Explorer. For the purposes of consistency, I’ve used the Northwind Microsoft Access 2000 database for these examples. Feel free, however, to use any data source that has an OLE DB provider available on your machine.
A programmer's guide to ADO. NET in C# by Mahesh Chand