private void shareValueGrid_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
 {
     if (shareValueGrid.Rows[e.RowIndex] != null)
     {
         MaintShareValueHistory maintValue = new MaintShareValueHistory((EMMADataSet.ShareValueHistoryRow)
             (((DataRowView)shareValueGrid.Rows[e.RowIndex].DataBoundItem).Row));
         maintValue.ShowDialog();
         DisplayData();
     }
 }
 private void btnNew_Click(object sender, EventArgs e)
 {
     MaintShareValueHistory newValHist = new MaintShareValueHistory(_currentCorp);
     newValHist.ShowDialog();
     DisplayData();
 }