codice:
//collego la griglia ai dati(tabella popolata da un query)
grdElenco.DataSource = myDataset.Tables[0];

DataGridTableStyle myStyle = new DataGridTableStyle();
myStyle.MappingName = "Alessio";
grdElenco.TableStyles.Add(myStyle);
grdElenco.TableStyles["Alessio"].GridColumnStyles[0].Width = 0;
mi da questo errore: Index was out of range. Must be non-negative and less than the size of the collection.