Beginning Web Development, Silverlight, and ASP.NET AJAX

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CHAPTER 5 ■ ASP.NET WEB SERVICES
Figure 5-16. Binding the ObjectDataSource to the web method
The next step is to bind the input parameters to the data source. This means that
you can codelessly accept input parameters via a text box and use them in the call to the
web method. Earlier you added a text box and a button control to the page, and these
will be used. Clicking the button triggers the form action, and this contains data from the
text box. As a result, you should specify Form as the parameter source, and the text box
as the form field that contains the parameter data. The default text box name is TextBox1,
so if you didn’t change the name of the text box, you would use this name, as shown in
Figure 5-17.