private void // ERROR: Handles clauses are not supported in C#
moBarData_DataSeriesUpdated(object sender, T4.API.ChartData.DataSeriesUpdatedEventArgs e)
{
// NOTE: This event is raised on it's own thread. If you are updating a GUI application with the chart data (like this example), don't forget that you
// MUST marshall this update onto the GUI thread before you modify any GUI components.
// (This is the same for all T4 API events.)
if (this.InvokeRequired)
{
// An invoke is required to update the GUI, simply invoke back to this same mthod.
this.BeginInvoke(new T4.API.ChartData.DataSeriesUpdatedEventHandler(moBarData_DataSeriesUpdated), new object[] {
sender,
e
});
// Don't forget to exit now!
return;
}
//On the GUI thread now, update the chart.
// Before iterating the data collection, you MUST lock it. This will prevent live trade updates from modifying the collection as you read it.
moBarData.Lock();
try {
//e.TradeBarIndexUpdate is the index of the first bar that was added or updated since the last update event.
for (int i = e.TradeBarIndexUpdate; i <= moBarData.TradeBars.Count - 1; i++)
{
T4.API.ChartData.BarDataPoint oBar = (T4.API.ChartData.BarDataPoint)moBarData.TradeBars[i];
if (i < moTable.Rows.Count)
{
// Update the chart series.
DataRow oRow = moTable.Rows[i];
oRow.ItemArray = new object[] {
i,
oBar.TradeDate,
oBar.Time,
oBar.OpenTicks,
oBar.HighTicks,
oBar.LowTicks,
oBar.CloseTicks,
oBar.Volume
};
}
else
{
// Add a new bar.
moTable.Rows.Add(i, oBar.TradeDate, oBar.Time, oBar.OpenTicks, oBar.HighTicks, oBar.LowTicks, oBar.CloseTicks, oBar.Volume);
}
}
} catch (Exception ex) {
Trace.WriteLine("Error updating chart data: " + ex.ToString());
} finally {
// If you don't be sure to unlock the data collection, you probably won't get any live trade updates.
moBarData.Unlock();
}
}
private void // ERROR: Handles clauses are not supported in C#
moBarData_DataLoadComplete(object sender, T4.API.ChartData.DataLoadCompleteEventArgs e)
{
// NOTE: This event is raised on it's own thread. If you are updating a GUI application with the chart data (like this example), don't forget that you
// MUST marshall this update onto the GUI thread before you modify any GUI components.
// (This is the same for all T4 API events.)
if (this.InvokeRequired)
{
// An invoke is required to update the GUI, simply invoke back to this same mthod.
this.BeginInvoke(new T4.API.ChartData.DataLoadCompleteEventHandler(moBarData_DataLoadComplete), new object[] {
sender,
e
});
// Don't forget to exit now!
return;
}
// On the GUI thread now, update the chart.
if (e.Status == DataLoadStatus.Failed)
{
Trace.WriteLine("IChartDataRequest_ChartDataComplete: Chart data request failed.");
return;
}
else
{
// Sometimes, you won't get all the historical data you requested. This could happen if there isn't chart data available all the back to the start date you requested.
Trace.WriteLine(string.Format("IChartDataRequest_ChartDataComplete: Status: {0}, Dates Requested: {1}, Dates Received: {2}", e.Status, e.DateRangeRequested, e.DateRangeProcessed));
}
chart1.Series["candlestickSeries"].Points.Clear();
chart1.Series["candlestickVolumeSeries"].Points.Clear();
chart1.Series["movingAverageSeries"].Points.Clear();
int dataPointHigh = int.MinValue;
int dataPointLow = int.MaxValue;
// Before iterating the data collection, you MUST lock it. This will prevent live trade updates from modifying the collection as you read it.
moBarData.Lock();
try {
for (int i = 0; i <= moBarData.TradeBars.Count - 1; i++)
{
T4.API.ChartData.BarDataPoint oBar = (T4.API.ChartData.BarDataPoint)moBarData.TradeBars[i];
Trace.WriteLine(string.Format("TradeDate: {6}, Time: {5}, Open: {0}, High: {1}, Low: {2}, Close: {3}, Volume: {4}", oBar.OpenTicks, oBar.HighTicks, oBar.LowTicks, oBar.CloseTicks, oBar.Volume, oBar.Time, oBar.TradeDate));
moTable.Rows.Add(i, oBar.TradeDate, oBar.Time, oBar.OpenTicks, oBar.HighTicks, oBar.LowTicks, oBar.CloseTicks, oBar.Volume);
// Add candlestick to chart (high, low, open, close).
object[] multipleValues = new object[] { oBar.HighTicks, oBar.LowTicks, oBar.OpenTicks, oBar.CloseTicks };
chart1.Series[0].Points.AddXY(oBar.Time, multipleValues);
chart1.Series[1].Points.AddXY(oBar.Time, oBar.Volume);
// See if our maximum and minimum values on the chart have changed (we will use this for axis scaling).
dataPointHigh = Math.Max(dataPointHigh, oBar.HighTicks);
dataPointLow = Math.Min(dataPointLow, oBar.LowTicks);
}
DataGridView1.AutoResizeColumns();
chart1.ChartAreas[0].AxisY.Minimum = dataPointLow;
chart1.ChartAreas[0].AxisY.Maximum = dataPointHigh;
/*
* IList<DateTime> listx = new List<DateTime>();
* IList<double> listy = new List<double>();
*
* //iterate and add your values to the two lists: listx and listy
*
* //when you're done, bind the lists to the points collection
* yourSeries.Points.DataBindXY(listx, listy);
*/
} catch (Exception ex) {
Trace.WriteLine("Error loading chart data: " + ex.ToString());
} finally {
// If you don't be sure to unlock the data collection, you probably won't get any live trade updates.
moBarData.Unlock();
}
}
