By Mahesh Chand
A Programmer's advisor to ADO.NET in C# starts off by means of taking readers via a fast moving evaluation of C# after which delves into ADO.NET. Why may still C# programmers use it rather than the present applied sciences? What new performance does it supply? The chapters that persist with plow through the main points on all the significant information companies of the .NET platform (OleDb, SQL Server, and ODBC) that assist you learn and write information to the distinct database. those chapters additionally function an exceptional reference for having a look up designated tools and homes for those info supplier periods. Authors Chand and Gold additionally exhibit C# programmers how one can paintings with XML periods and the way to combine XML into the ADO.NET architecture.
The ebook presents programmers with convenient principles approximately profiting from the VS.NET IDE and the way you could tie your information to the myriad of robust controls together with the multi-faceted information Grid. ultimately, it is going via making a visitor ebook software for the net so that you can see how every little thing healthy jointly.
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Extra info for A programmer's guide to ADO. NET in C#
NET–generated typed DataSet class 203 933ch4 3/20/02 11:03 AM Page 204 Chapter 4 You can now create an instance of this class instead of creating a DataSet programmatically. This class has a member corresponding to each column of the table to which it’s attached: MyDataSet ds = new MyDataSet(); The beauty of typed datasets is that you can access the data in the columns using MyDataSet object members. Besides creating a DataSet using the Data Adapter Configuration Wizard, there is another good way to do so.
The OdbcDataAdapter will also generate similar code. Populating DataSet and Filling the DataGrid Now, to test whether everything went fine, create a Windows Forms application and add an OleDataAdapter using the previous steps. Then, add a DataGrid control to the form, as well as all the code listed in Listing 4-5 on the Form_Load event or a button-click handler. 197 933ch4 3/20/02 11:03 AM Page 198 Chapter 4 Listing 4-5. DefaultViewManager; } If you remember the SqlDataAdapter example, you know that it contained almost the same code.
181 933ch4 3/20/02 11:03 AM Page 182 Chapter 4 Figure 4-29. Setting the SQL SelectCommand in the data adapter As you also see in Figure 4-29, you can set CommandText, CommandType, Connection, and so on using the Properties dialog box. If you double-click on CommandText, it pops up the Query Builder where you can rebuild your query (see Figure 4-30). NET Figure 4-30. Relaunching the Query Builder from the CommandText property The TableMapping class represents a mapping of DataColumns in the data source to DataColumns in the DataSet.
A programmer's guide to ADO. NET in C# by Mahesh Chand