private void dg_djsqry_CellClick(object sender, DataGridViewCellEventArgs e) { if (e.RowIndex < 0) { return; } if (object.Equals(dg_djsqry.CurrentRow, null)) { return; } DataGridViewRow dgr = dg_djsqry.CurrentRow; string djlsh = dgr.Cells["djlsh"].Value.ToString(); dt = lisbiz.Get_TJ_JYJGB(djlsh); dg_jyjgmx.DataSource = dt; }