public static IEnumerable <QueryStockResult> ExtractFrom(TabulateData data)
{
if (columnIndices == null)
{
columnIndices = columns.Select(c => data.GetColumnIndex(c)).ToArray();
}
var subData = data.GetSubColumns(columnIndices);
foreach (var row in subData.Rows)
{
QueryStockResult result = new QueryStockResult();
int index = 0;
result.SecurityCode = row[index++];
result.SecurityName = row[index++];
result.Volume = TradingHelper.SafeParseFloat(row[index++]);
result.SellableVolume = TradingHelper.SafeParseFloat(row[index++]);
result.ReferenceCost = TradingHelper.SafeParseFloat(row[index++]);
result.CurrentPrice = TradingHelper.SafeParseFloat(row[index++]);
result.LatestMarketValue = TradingHelper.SafeParseFloat(row[index++]);
result.ProfitPercentage = TradingHelper.SafeParseFloat(row[index++]);
yield return(result);
}
}
public IEnumerable <QueryStockResult> QueryStock(out string error)
{
TabulateData data;
if (!QueryData(DataCategory.Stock, out data, out error))
{
return(new List <QueryStockResult>());
}
return(QueryStockResult.ExtractFrom(data));
}