private void ItemChanged(MonitoredItem monitoreditem, MonitoredItemNotificationEventArgs e)
{
MonitoredItemNotification notification = e.NotificationValue as MonitoredItemNotification;
if (notification != null)
{
string nodeid = monitoreditem.StartNodeId.Identifier.ToString();
if (!_SubscriptionTags.ContainsKey(nodeid))
{
throw (new Exception(string.Format("订阅回调触发,但是_SubscriptionTags不包含键;key:{0}", nodeid)));
}
TagItem item = _SubscriptionTags[nodeid];
if (item == null)
{
throw (new Exception(string.Format("订阅回调触发,但是未找到键对应TagItem对象;key:{0},value:null", nodeid)));
}
if (item.CallBack == null)
{
return;
}
item.CBType = TagItem.CallBackType.Subscription;
item.Value = notification.Value.Value;
item.Timestamp = notification.Value.SourceTimestamp;
item.Quality = notification.Value.StatusCode.ToString();
item.CallBack(item);
}
}
private void _OpcDaGroup_AsyncReadCompleteEvent(Item item)
{
TagItem tag = _TagItems[item.Name];
if (tag == null)
{
return;
}
if (tag.CallBack == null)
{
return;
}
tag.Value = item.Value;
tag.Quality = item.Quality.ToString();
tag.Timestamp = DateTime.Parse(item.Timesnamp.ToString());
tag.CBType = TagItem.CallBackType.AsyncRead;
tag.CallBack(tag);
}
private void _OpcDaGroup_DataChangeEvent(Item item)
{
TagItem tag = _TagItems[item.Name];
if (tag == null)
{
return;
}
if (tag.CallBack == null)
{
return;
}
tag.Value = item.Value;
tag.Quality = item.Quality.ToString();
tag.Timestamp = DateTime.Parse(item.Timesnamp.ToString());
tag.CBType = TagItem.CallBackType.Subscription;
tag.CallBack(tag);
}
