Código:
Private Sub DataGrid1_EditCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs ) Handles DataGrid1.EditCommand
DataGrid1.EditItemIndex = e.Item.ItemIndex
DataGrid1.SelectedIndex = e.Item.ItemIndex
cargar_grid()
End Sub
Podrias poner el codigo de tu
cargar_grid()
Te espero...