Show alert from DataList

this example for show alert message when user click at delete button in Datalist

Protected Sub dl1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataListItemEventArgs) Handles dl1.ItemDataBound

If Not e.Item.ItemType = ListItemType.Header And Not e.Item.ItemType = ListItemType.Footer Then

Dim lnkDelete As LinkButton = CType(e.Item.FindControl("LDelete"), LinkButton)

lnkDelete.Attributes.Add("onclick", "return confirm('Are you sure you want to delete this record?');")

End If

End Sub