public async Task UpdateCurrentZoneAsync(string subName, string zoneName)
{
await lazyLoadZonesAsync();
if (String.IsNullOrEmpty(zoneName))
{
zoneName = null;
}
var changed = false;
try
{
changed = zoneName != currentZone[subName];
}
catch (KeyNotFoundException)
{
changed = true;
}
currentZone[subName] = zoneName;
if (changed)
{
var args = new CurrentZoneChangedEventArgs()
{
SubName = subName,
ZoneName = zoneName
};
OnCurrentZoneChanged(args);
await storeZonesAsync();
}
}
protected virtual void OnCurrentZoneChanged(CurrentZoneChangedEventArgs args)
{
log.LogDebug("Dispatch zone change for {0}.", args.SubName);
var handler = CurrentZoneChanged;
if (handler != null)
{
handler(this, args);
}
}