[CODE]
 Public Sub a(ByVal source As Object, ByVal e As System.Web.UI.WebControls.RepeaterCommandEventArgs) Handles queryres1.ItemCommand
       [COLOR=red] If Me.IsPostBack = True Then[/COLOR]

            If (e.Item.ItemType = ListItemType.Item) Then 
                Dim pulsante As String = e.Item.FindControl("ImageButton1").Controls.ToString 
[/CODE]