ModifyMonitoring() public method

Checks if the monitored item can still be handled by the group.
The ApplyChanges() method must be called to actually stop sampling the item.
public ModifyMonitoring ( OperationContext context, ISampledDataChangeMonitoredItem monitoredItem ) : bool
context OperationContext
monitoredItem ISampledDataChangeMonitoredItem
return bool
SamplingGroup Class Documentation
コード例 #1
0
        /// <summary>
        /// Changes monitoring attributes the item.
        /// </summary>
        /// <remarks>
        /// It will call the external source to change the monitoring if an external source was provided originally.
        /// The changes will not take affect until the ApplyChanges() method is called.
        /// </remarks>
        public virtual void ModifyMonitoring(OperationContext context, ISampledDataChangeMonitoredItem monitoredItem)
        {
            lock (m_lock)
            {
                // find existing sampling group.
                SamplingGroup samplingGroup = null;

                if (m_sampledItems.TryGetValue(monitoredItem, out samplingGroup))
                {
                    if (samplingGroup != null)
                    {
                        if (samplingGroup.ModifyMonitoring(context, monitoredItem))
                        {
                            return;
                        }
                    }

                    m_sampledItems.Remove(monitoredItem);
                }

                // assign to a new sampling group.
                StartMonitoring(context, monitoredItem);
                return;
            }
        }