/// <summary>
/// Adds the provided items to the subscription.
/// </summary>
/// <param name="items">The items <see cref="OpcDa::ItemResult"/>.</param>
/// <returns>
/// Array of <see cref="ItemResult"/> with results
/// </returns>
internal OpcDa::ItemResult[] AddItems(OpcDa::Item[] items)
{
if (Tag != null)
{
Tag.SetResultFilters((int)OpcDa.ResultFilter.All); //TODO clean up ResultFilter usage
return(Tag.AddItems(items));
}
else
{
OpcDa::ItemResult[] res = new OpcDa::ItemResult[items.Length];
for (int ix = 0; ix < items.Length; ix++)
{
res[ix] = new OpcDa::ItemResult(items[ix])
{
ResultID = Opc.ResultID.S_OK
}
}
;
return(res);
}
}
/// <summary>
/// Returns the value of the specified field.
/// </summary>
private object GetFieldValue(OpcDa::ItemResult item, int fieldID)
{
object fieldValue = null;
switch (fieldID)
{
case ITEM_NAME: { return(item.ItemName); }
case ITEM_PATH: { return(item.ItemPath); }
// case CLIENT_HANDLE: { return Opc.Convert.ToString(item.ClientHandle); }
// case SERVER_HANDLE: { return Opc.Convert.ToString(item.ServerHandle); }
case DEADBAND: { return((item.DeadbandSpecified) ? item.Deadband : fieldValue); }
case SAMPLING_RATE: { return((item.SamplingRateSpecified) ? item.SamplingRate : fieldValue); }
case ENABLE_BUFFERING: { return((item.EnableBufferingSpecified) ? item.EnableBuffering : fieldValue); }
case ERROR: { return(GetErrorText(item.ResultID)); }
}
return(null);
}
