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Ebook ASP.Net - Database programming weekend crash course: Part 2

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(BQ) Part 2 book "ASP.Net - Database programming weekend crash course" has contents: Introducing data binding, using the datagrid control with bound data, migrating from ASP to ASP.Net, migrating from ADO to ADO.NET,. and other contents. | 324830-1 DPO3.F 11/7/01 9:03 AM Page 209 Part V — Sunday Morning Session 21 Introducing Datasets, Part II Session 22 Introducing Data Binding Session 23 Using the DataGrid Control with Bound Data Session 24 Beating the CRUD out of the DataGrid Control Session 25 Data Shaping with ADO.NET Session 26 Handling ADO.NET Errors Part VI — Sunday Afternoon Session 27 SOAP It Up! Session 28 Web Services Session 29 Migrating from ASP to ASP.NET Session 30 Migrating from ADO to ADO.NET 334830-1 PtO5.F 11/7/01 9:03 AM Page 210 PART V Sunday Morning Session 21 Introducing Datasets, Part II Session 22 Introducing Data Binding Session 23 Using the DataGrid Control with Bound Data Session 24 Beating the CRUD out of the DataGrid Control Session 25 Data Shaping with ADO.NET Session 26 Handling ADO.NET Errors 344830-1 Ch21.F 11/7/01 9:03 AM Page 211 SESSION 21 Introducing DataSets, Part II Session Checklist ✔ Learning to construct a DataSet without a DataAdapter object ✔ Learning to navigate the DataSet’s object model ✔ Understanding the relationship between DataSet, DataTable, DataRow, and DataColumn objects I n the previous session, we began our discussion of DataSet objects, the cornerstone of ADO.NET. You learned that a dataset is effectively a disconnected copy of a database and that you can populate a DataSet using a DataAdapter object. In this session, you’re going to attack some of the DataSet object’s constituent, or child, objects, including the DataTable, DataColumn, and DataRow objects. Constructing a DataSet Before we get started with its constituent objects, lets step back for a moment and discuss how to construct a DataSet object. In Session 20, “Introducing DataSets, Part I,” you learned how to construct a DataSet with a DataAdapter object. Oddly enough, you don’t actually need a DataAdapter object to create a DataSet object. Creating a DataSet object is fairly straightforward as shown in the following example: Dim oDS As DataSet oDS = New .