// Event handler used to write the status of the stock to
// the console. Additionally, if a the max number of stock thresholds
// have been reached, the user is asked if they wish to continue.
// If they do, the program continues, otherwise it exits.
public void stockThresholdReached(object sender,
StockNotificationEventArgs e)
{
// Using a lock ensures that no other thread tries to print to the
// console at the same time.
lock (thisLock) {
Console.WriteLine(brokerName.PadRight(20) + e.Name.PadRight(20)
+ e.CurrentValue.ToString().PadRight(15)
+ e.NumberOfChanges.ToString().PadRight(15));
}
}
// Method used to raise the event, called when the difference between
// the stock's current value and its intial value is equal to the
// threshold.
protected void OnThresholdReached(StockNotificationEventArgs args1,
StockToFileEventArgs args2)
{
// Using a lock ensures that no other thread tries to print to the
// console at the same time.
lock (thisLock) {
// Calls the write to console event handler
EventHandler<StockNotificationEventArgs> eventHandler = stockEvent;
if (eventHandler != null) {
eventHandler(this, args1);
}
// Calls the write to file event handler
EventHandler<StockToFileEventArgs> fileHandler = stockToFileEvent;
if (fileHandler != null) {
fileHandler(this, args2);
}
}
}
