public void stopSubscribeChart(ChartQuotes receiver)
{
try
{
Subscription s_stocks = charts[receiver];
client.unsubscribe(s_stocks);
}
catch (Exception ex)
{
Console.WriteLine("Exception while subscribing: " + ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
public void subscribeChart(string item, ChartQuotes receiver)
{
try
{
if (charts.ContainsKey(receiver))
{
return;
}
// We subscribes it again because we don't want any
// restriction to updates frequecy of the main subscription.
Subscription s_stocks = new Subscription("MERGE");
s_stocks.Fields = new string[3] {
"last_price", "time", "stock_name"
};
s_stocks.Items = new string[1] {
item
};
s_stocks.DataAdapter = "QUOTE_ADAPTER";
s_stocks.RequestedSnapshot = "yes";
s_stocks.RequestedMaxFrequency = "3.0";
s_stocks.addListener(new ChartListener(">> ", receiver));
charts.Add(receiver, s_stocks);
client.subscribe(s_stocks);
}
catch (Exception ex)
{
Console.WriteLine("Exception while subscribing: " + ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
private void dataGridview_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
ChartQuotes cq = new ChartQuotes("item" + (e.RowIndex + 1), dataGridview.Rows[e.RowIndex].Cells[0].Value.ToString(), stocklistClient);
cq.Show();
}
public ChartListener(string prefix, ChartQuotes chartForm)
{
this.prefix = prefix;
this.chartForm = chartForm;
this.delegateChart = new LightstreamerChartUpdateDelegate(chartForm.OnLightstreamerUpdate);
}