static Boolean InvokeAllEventHandlers <TArgs>(this GenericEventHandler <TArgs> evt, TArgs args, out Exception[] occurredExceptions)
{
LinkedList <Exception> exceptions = null;
var result = evt != null;
if (result)
{
foreach (var handler in evt.GetInvocationList())
{
try
{
((GenericEventHandler <TArgs>)handler)?.Invoke(args);
}
catch (Exception exc)
{
if (exceptions == null)
{
exceptions = new LinkedList <Exception>();
}
exceptions.AddLast(exc);
}
}
}
if (exceptions != null)
{
occurredExceptions = exceptions.ToArray();
}
else
{
occurredExceptions = Empty <Exception> .Array;
}
return(result);
}
static Boolean InvokeAllEventHandlers <TArgs>(this GenericEventHandler <TArgs> evt, TArgs args, Boolean throwExceptions = true)
{
LinkedList <Exception> exceptions = null;
var result = evt != null;
if (result)
{
var invocationList = evt.GetInvocationList();
for (var i = 0; i < invocationList.Length; ++i)
{
try
{
((GenericEventHandler <TArgs>)invocationList[i])?.Invoke(args);
}
catch (Exception exc)
{
if (throwExceptions)
{
if (exceptions == null)
{
// Just re-throw if this is last handler and first exception
if (i == invocationList.Length - 1)
{
throw;
}
else
{
exceptions = new LinkedList <Exception>();
}
}
exceptions.AddLast(exc);
}
}
}
}
if (exceptions != null)
{
throw new AggregateException(exceptions.ToArray());
}
return(result);
}