ToString();
cell.Controls.Add(content);
row.Cells.Add(cell);
}
table.Rows.Add(row);
}
Span1.Controls.Add(table);
}
}
}
When reviewing the source code, you will find that no changes were needed in the codebehind
class file. All of the hard AJAX programming is automatically handled by the ASP.NET
AJAX extensions server controls and associated JavaScript file that ships with ASP.NET AJAX.
Figure 2-13 shows the page loading with the phrase ???Updating . . .??? displayed under the Build
Table button while waiting for the update HTML to return from the AJAX call.
ASP.NET AJAX provides a rapid ability to add AJAX-like functionality to existing web sites.
In Chapter 9, we cover building server controls that are AJAX aware as well as considerations to
make sure that any custom server controls you develop work properly within the ASP.NET
AJAX popular UpdatePanel server control.
82 CHAPTER 2 ?– ENCAPSULATING FUNCT IONALITY IN A SP.NET
Figure 2-13. The Web form demonstrating ASP.NET AJAX partial updates with progress status
Using Design-Time Attributes
Visual Studio provides a rich, powerful development environment with automatic completion
and default properties, as well as custom property editors to speed developers??™ coding efforts.
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