xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="WpfApplication1.Window1" Title="ColumnDefinitions Sample"> Grid Column and Row Collections
//File:Window.xaml.cs using System; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; namespace WpfApplication1 { public partial class Window1 : Window { RowDefinition rowDef1; ColumnDefinition colDef1; private void rowCount(object sender, RoutedEventArgs e) { Console.WriteLine("The current number of Rows is: " + grid1.RowDefinitions.Count); } } }