public async Task AsyncTask_updateinfo()
{
IList <PIPointChangeInfo> clist = new List <PIPointChangeInfo>();
Action asyncJobupdateinfo = () =>
{
PIPointChangesCookie cookie = null;
while (updateval2 == 0)
{
if (myPIServer != null)
{
if (monitval == 0)
{
monitval = 1;
cookie = null;
UpdMonitorLabel("Monitoring ON (" + myPIServer.Name + ")");
}
if (ReferenceEquals(cookie, null))
{
clist = myPIServer.FindChangedPIPoints(int.MaxValue, null, out cookie);
}
else
{
clist = myPIServer.FindChangedPIPoints(int.MaxValue, cookie, out cookie);
}
if (clist != null)
{
foreach (PIPointChangeInfo change in clist)
{
//MessageBox.Show(change.ID + " : " + change.Action);
string[] displayvalues = new string[3];
if (change.Action.ToString() == "Removed")
{
displayvalues[0] = change.ID.ToString();
}
else
{
PIPoint mypt = PIPoint.FindPIPoint(myPIServer, change.ID);
displayvalues[0] = mypt.Name;
}
displayvalues[1] = change.Action.ToString();
displayvalues[2] = DateTime.Now.ToString();
ListViewItem lvi = new ListViewItem(displayvalues);
UpdListView2(lvi);
}
}
}
}
};
await Task.Run(asyncJobupdateinfo);
}