Dinamically Adding DropDownList Into DataGridItem

1kHz · January 20th, 2006, 12:06 AM

Hi experts,

I want to do a custom datagrid which has my custom style of pager. What
I want in the pager is a drop down list which list all the available
pages.

I inherits my custom control from the original datagrid. The idea is to
remove all original child from the pager row, add my own. So I override
the OnItemCreated, get the pager row and put my customization in..

Code:

protected override void OnItemCreated(DataGridItemEventArgs e) 
{ 
  if (e.Item.ItemType == ListItemType.Pager) 
  { 
    BuildPager(e.Item);  //my customization 
  } 
  base.OnItemCreated (e); 
}

private void BuildPager(DataGridItem row) 
{ 
  int totalPage = (int)Math.Ceiling(this.VirtualItemCount / 
this.PageSize); 

  TableCell cell = row.Cells[0]; 
  cell.Controls.Clear(); 

  DropDownList ddlPages = new DropDownList(); 
  cell.Controls.Add(ddlPages); 

  for (int i=1; i<=totalPage; i++) 
    ddlPages.Items.Add(i.ToString()); 

  ddlPages.AutoPostBack = true; 
  ddlPages.SelectedIndexChanged += new 
EventHandler(ddlPages_SelectedIndexChanged); 
  . 
  .

It came out displayed correctly. But I can't seem to capture the
SelectedIndexChanged event? How come?
I've tried adding a Button and LinkButton in exactly the same way.
Events from them can be captured without problem.

Can anybody please explain? Thank you...