public void BeginStart(string host, DataGridViewRow row) { lock (listRow) { if (!listRow.Contains(row)) { SetRowStyleFont(ref row, new Font(defaultCellStyle, FontStyle.Regular)); SetRowStyleForeColor(ref row, Color.Black); listRow.Add(row); BeginStartDelegate de = new BeginStartDelegate(Start); de.BeginInvoke(host, ref row, null, null); } } }