void SaveToFile()
{
var dlg = new SaveFileDialog()
{
Filter = "Text File|*.txt |Csv File| *.csv | (*.*)|*.*"
};
if (dlg.ShowDialog() == true)
{
var ep = new ReportCommonLib.ReportExportHelper();
ep.CreateCsvReport <IInstrument>(dlg.FileName, InstrumentList.ToList());
}
}