protected void Page_Load(object sender, EventArgs e)    
{        
   body.Style.Add("overflow", "hidden");

   /* setup root rows and add them to RootTable */

   WebGridRow[] rootRows = new WebGridRow[6];

   for (int i = 0; i <= 6; i++)            
      rootRows[i] = WebGrid1.RootTable.CreateRow();

   rootRows[0].Cells.SetItemData(new string[] { "172-32-1176", "White", "Johnson" });
   rootRows[1].Cells.SetItemData(new string[] { "213-46-8915", "Green", "Marjorie" });        
   rootRows[2].Cells.SetItemData(new string[] { "238-95-7766", "Carson", "Cheryl" });        
   rootRows[3].Cells.SetItemData(new string[] { "267-41-2394", "O'Leary", "Michael" });        
   rootRows[4].Cells.SetItemData(new string[] { "274-80-9391", "Straight", "Dean" });        
   rootRows[5].Cells.SetItemData(new string[] { "341-22-1782", "Smith", "Meander" });

   WebGrid1.RootTable.Rows.AddRange(rootRows);

   /* - create child rows and add them to the parent row in the RootTable         
    * - in this sample, the second row in the root is not expandable         
    * - first row is expanded programmatically         
    * - all expandable rows should have at least one child row and the SetHierarchicalType()         
    *   must be set to the Children collection.        
   */

   WebGridTable childTable = WebGrid1.RootTable.ChildTables[0];        
   WebGridRow[] childRows = new WebGridRow[11];

   for (int i = 0; i < 11; i++)            
      childRows[i] = childTable.CreateRow();
   
   childRows[0].Cells.SetItemData(new object[] { "BU1032", "The Busy Executive's Database Guide", "Business", 19.99 });
   childRows[1].Cells.SetItemData(new object[] { "BU1111", "Cooking with Computers: Surreptitious Balance Sheets", "Business", 11.95 });        
   childRows[2].Cells.SetItemData(new object[] { "BU2075", "You Can Combat Computer Stress!", "Business", 2.99 });        
   childRows[3].Cells.SetItemData(new object[] { "BU7832", "Straight Talk About Computers", "Business", 19.99 });        
   childRows[4].Cells.SetItemData(new object[] { "MC2222", "Silicon Valley Gastronomic Treats", "Cooking", 19.99 });        
   childRows[5].Cells.SetItemData(new object[] { "MC3021", "The Gourmet Microwave", "Cooking", 14.95 });        
   childRows[6].Cells.SetItemData(new object[] { "MC3026", "The Psychology of Computer Cooking", "Undecided", 10.29 });        
   childRows[7].Cells.SetItemData(new object[] { "PC1035", "But Is It User Friendly?", "Popular Computer", 11.05 });        
   childRows[8].Cells.SetItemData(new object[] { "PC8888", "Secrets of Silicon Valley", "Popular Computer", 24.99 });        
   childRows[9].Cells.SetItemData(new object[] { "PC9999", "Net Etiquette", "Popular Computer", 9.49 });        
   childRows[10].Cells.SetItemData(new object[] { "PS1372", "Computer Phobic AND Non-Phobic Individuals: Behavior Variations", "Psychology", 14.69 });

   rootRows[0].Children.SetHierarchicalType();        
   rootRows[0].Children.AddRange(new WebGridRow[] { childRows[0], childRows[1], childRows[2] });        
   rootRows[0].ExpandChildRow();

   rootRows[1].ChildNotExpandable = true;

   rootRows[2].Children.SetHierarchicalType();        
   rootRows[2].Children.AddRange(new WebGridRow[] { childRows[3], childRows[4] });
   
   rootRows[3].Children.SetHierarchicalType();        
   rootRows[3].Children.AddRange(new WebGridRow[] { childRows[5], childRows[6] });

   rootRows[4].Children.SetHierarchicalType();        
   rootRows[4].Children.AddRange(new WebGridRow[] { childRows[7], childRows[8] });

   rootRows[5].Children.SetHierarchicalType();        
   rootRows[5].Children.AddRange(new WebGridRow[] { childRows[9], childRows[10] });    
}