第一個示例方法：
1 sqlconnection conn = new sqlconnection();
2 conn.connectionstring = server=127.0.0.1;user
id=sa;password=fdahgdrethj31313210212121;
database=northwind;persist security info=true;
3 conn.open();
4 sqldataadapter da = new sqldataadapter(select * from 表, conn);
5 sqlcommandbuilder thisbulder = new sqlcommandbuilder(da);
6 dataset ds = new dataset();
7 da.fill(ds);
8 ds.writexml(@c:\temp.xml);
第二個示例方法：
1 private void writexmltofile(dataset thisdataset)
2 {
3 if (thisdataset == null) { return; }
4 // create a file name to write to.
5 string filename = myxmldoc.xml;
6 // create the filestream to write with.
7 system.io.filestream myfilestream = new system.io.filestream
8 (filename, system.io.filemode.create);
9 // create an xmltextwriter with the filestream.
10 system.xml.xmltextwriter myxmlwriter =
11 new system.xml.xmltextwriter
(myfilestream, system.text.encoding.unicode);
12 // write to the file with the writexml method.
13 thisdataset.writexml(myxmlwriter);
14 myxmlwriter.close();
15 }