public event EventHandler <ProcessEventArgs> ProcessCompleted; // event
public void StartProcess()
{
var data = new ProcessEventArgs();
try
{
Console.WriteLine("Process Started!");
//uncomment following to see the result
//throw new NullReferenceException();
// some process code here..
data.IsSuccessful = true;
data.CompletionTime = DateTime.Now;
OnProcessCompleted(data);
}
catch (Exception ex)
{
data.IsSuccessful = false;
data.CompletionTime = DateTime.Now;
OnProcessCompleted(data);
}
}
protected virtual void OnProcessCompleted(ProcessEventArgs e)
{
ProcessCompleted?.Invoke(this, e);
}
// event handler
public static void bl_ProcessCompleted(object sender, ProcessEventArgs e)
{
Console.WriteLine("Process " + (e.IsSuccessful ? "Completed Successfully" : "failed"));
Console.WriteLine("Completion Time: " + e.CompletionTime.ToLongDateString());
}
