8.4 Windows Forms and Web Services
Previously, Windows DNA tended not to use
fat clients, rich Windows applications on PCs, because of the need
for an intrusive installation program. With .NET
"copy" deployment, there is no such
problem. Now fat Windows clients can interface easily with business
logic in the middle tier through XML/HTTP. The rich client
application will, in fact, perform better than a web-based front end.
However, everything depends on the requirements of the application.You can still add web references to web services that auto-generate
proxy classes for use in your Windows Forms applications just as for
Web Forms applications. This is further evidence that .NET as a whole
is intended to embrace the Web. In Windows Forms, data binding is
automatic once you've set the
control's DataSource to the appropriate data source,
as seen in the next block of code. Note that there is no explicit
call to the DataBind method as in Web Forms data binding:localhost.PubsWS ws = new localhost.PubsWS( );
DataSet ds = ws.GetAuthors( );
DataGrid1.DataSource = ds.tables[0].DefaultView;
Again, you can also generate the source for the proxy class yourself
using the wsdl.exe tool,
along with the WSDL obtained from the web service. You can then
include this source to your Windows Forms project or compile the
source into a DLL and add the DLL to the project as a reference.