protected virtual void AddImportRow(DateTime updateTime, ForexData data, bool isTotalVolume, databases.importDS.importPriceDataTable tbl)
{
databases.importDS.importPriceRow oldImportRow;
databases.importDS.importPriceRow importRow = tbl.NewimportPriceRow();
databases.AppLibs.InitData(importRow);
importRow.isTotalVolume = isTotalVolume;
importRow.onDate = updateTime;
importRow.stockCode = data.code;
importRow.volume = 0;
importRow.closePrice = data.last;
//Only add new when there are some changes
oldImportRow = lastImportData.Find(importRow);
if (!lastImportData.IsSameData(importRow, oldImportRow))
{
tbl.AddimportPriceRow(importRow);
lastImportData.Update(importRow);
}
else
{
importRow.CancelEdit();
}
}
/// <summary>
/// Import data from URL to tables : importPrice
/// The function also detect and add new companies to the database
/// </summary>
/// <param name="url">URL to get data</param>
/// <param name="priceMeta">meta describe the webpage structure</param>
/// <param name="stockExchangeCode">stock exchange code of imported data </param>
/// <param name="importPriceTbl"> where to store imported data </param>
public databases.importDS.importPriceDataTable GetPriceFromWeb(DateTime updateTime, metaStock priceMeta, databases.baseDS.exchangeDetailRow exchangeDetailRow)
{
bool bHaveData = false; //Kiem tra xem bang co du lieu hay ko
//Data in
CultureInfo CultureInfoUS = common.language.GetCulture("en-US");
databases.importDS.importPriceDataTable importPriceTbl = new databases.importDS.importPriceDataTable();
this.mappingList = CreateMapping(priceMeta, importPriceTbl);
// Get the URL specified
var webGet = new HtmlWeb();
var document = webGet.Load(exchangeDetailRow.address);
// Get <a> tags that have a href attribute and non-whitespace inner text
var linksOnPage = from item in document.DocumentNode.Descendants()
where item.Name == "td" && item.Attributes["id"] == null
select new
{
Text = item.InnerText
};
bool fError = false;
int igmoreRowCount = 0, columnCount = 0;
decimal val = 0;
databases.importDS.importPriceRow importRow = null;
databases.importDS.importPriceRow oldImportRow;
string stockCode;
foreach (var item in linksOnPage)
{
//Check whether to ignore some items at the first
if (++igmoreRowCount <= priceMeta.noRowIgnore)
{
continue;
}
if (fError)
{
break;
}
if (columnCount == priceMeta.startAtColId)
{
stockCode = item.Text.Trim();
importRow = importPriceTbl.NewimportPriceRow();
databases.AppLibs.InitData(importRow);
importRow.onDate = updateTime;
importRow.stockCode = stockCode;
importRow.isTotalVolume = true;
columnCount++;
continue;
}
//Last column
if (columnCount == priceMeta.endAtColId)
{
if (importRow.closePrice > 0)
{
//Only add new when there are some changes
oldImportRow = lastImportData.Find(importRow);
if (!lastImportData.IsSameData(importRow, oldImportRow))
{
importPriceTbl.AddimportPriceRow(importRow);
lastImportData.Update(importRow);
}
else
{
importRow.CancelEdit();
}
}
else
{
importRow.CancelEdit();
}
columnCount = 0;
continue;
}
object obj = this.mappingList.GetValue(columnCount.ToString());
if (obj != null)
{
val = 0; common.system.StrToDecimal(item.Text, CultureInfoUS, out val);
//15/07: Kiem tra gia tri co bang 0 hay ko. Neu co thi se co loi doc du lieu
if (val != 0)
{
bHaveData = true;
}
importRow[(string)obj] = val;
}
columnCount++;
}
//Neu ko co du lieu
if (!bHaveData)
{
throw new Exception();
}
return(importPriceTbl);
}