private void UpdateSystemRow(int rowindex) { if (rowindex < dataGridViewRouteSystems.Rows.Count && dataGridViewRouteSystems[0, rowindex].Value != null) { string sysname = dataGridViewRouteSystems[0, rowindex].Value.ToString(); var sys = GetSystem(sysname); dataGridViewRouteSystems[1, rowindex].Value = ""; if (rowindex > 0 && rowindex < dataGridViewRouteSystems.Rows.Count && dataGridViewRouteSystems[0, rowindex - 1].Value != null && dataGridViewRouteSystems[0, rowindex].Value != null) { string prevsysname = dataGridViewRouteSystems[0, rowindex - 1].Value.ToString(); var prevsys = GetSystem(prevsysname); if (sys != null && prevsys != null) { double dist = SystemClass.DistanceIncludeDB(sys, prevsys); string strdist = dist >= 0 ? ((double)dist).ToString("0.00") : ""; dataGridViewRouteSystems[1, rowindex].Value = strdist; } } dataGridViewRouteSystems[0, rowindex].Tag = sys; dataGridViewRouteSystems.Rows[rowindex].DefaultCellStyle.ForeColor = (sys != null && sys.HasCoordinate) ? _discoveryForm.theme.VisitedSystemColor : _discoveryForm.theme.NonVisitedSystemColor; if (sys != null) { dataGridViewRouteSystems[2, rowindex].Value = SystemNoteClass.GetSystemNoteOrEmpty(sys.name); } if (sys == null && sysname != "") { dataGridViewRouteSystems.Rows[rowindex].ErrorText = "System not known to EDSM"; } else { dataGridViewRouteSystems.Rows[rowindex].ErrorText = ""; } } }