Beginning Web Development, Silverlight, and ASP.NET AJAX

190
CHAPTER 8 ■ .NET 3.0: WINDOWS PRESENTATION FOUNDATION
Click the “Add another item” button to create a new definition in the collection. Figure
8-13 shows the ColumnDefinition Collection Editor; pressing this button adds new
column definitions. When a definition is selected, you can edit its properties using the
Properties window at the right of this dialog.
After adding three columns and three rows, your XAML in the main window will look
like this:
You can see this grid (center-aligned) on the screen, as shown in Figure 8-14.