public void RefreshList()
{
if (!this.SymbolChanged && this.RealtimeChanged)
{
this.RefreshData();
}
else if (this.SymbolChanged || this.RealtimeChanged)
{
StockDB.ResetList();
this.RefreshData();
StockDB.RecreateFolders();
}
this.RealtimeChanged = false;
this.SymbolChanged = false;
}