/// <summary>
/// Prompts the user to view the values of a trend.
/// </summary>
public bool ShowDialog(TsCHdaServer server, TsCHdaItemValueCollection values, bool readOnly)
{
if (server == null)
{
throw new ArgumentNullException("server");
}
if (values == null)
{
throw new ArgumentNullException("values");
}
// initialize controls.
trendCtrl_.Initialize(server, values);
trendCtrl_.ReadOnly = readOnly;
// show the dialog.
if (ShowDialog() != DialogResult.OK)
{
return(false);
}
// update collection if not read only.
if (!readOnly)
{
values.Clear();
foreach (TsCHdaItemValue value in trendCtrl_.GetValues())
{
values.Add(value);
}
}
return(true);
}
/// <summary>
/// Unmarshals and deallocates an OPCHDA_ITEM structure.
/// </summary>
internal static TsCHdaItemValueCollection GetItemValueCollection(OpcRcw.Hda.OPCHDA_ITEM input, bool deallocate)
{
TsCHdaItemValueCollection output = new TsCHdaItemValueCollection();
output.ClientHandle = input.hClient;
output.Aggregate = input.haAggregate;
object[] values = Com.Interop.GetVARIANTs(ref input.pvDataValues, input.dwCount, deallocate);
DateTime[] timestamps = Utilities.Interop.GetDateTimes(ref input.pftTimeStamps, input.dwCount, deallocate);
int[] qualities = Utilities.Interop.GetInt32s(ref input.pdwQualities, input.dwCount, deallocate);
for (int ii = 0; ii < input.dwCount; ii++)
{
TsCHdaItemValue value = new TsCHdaItemValue();
value.Value = values[ii];
value.Timestamp = timestamps[ii];
value.Quality = new TsCDaQuality((short)(qualities[ii] & 0x0000FFFF));
value.HistorianQuality = (TsCHdaQuality)((int)(qualities[ii] & 0xFFFF0000));
output.Add(value);
}
return(output);
}
/// <summary>
/// Returns the set of item values stored in the list control.
/// </summary>
public TsCHdaItemValueCollection GetValues()
{
TsCHdaItemValueCollection values = new TsCHdaItemValueCollection();
foreach (ListViewItem listItem in valuesLv_.Items)
{
if (typeof(TsCHdaItemValue).IsInstanceOfType(listItem.Tag))
{
values.Add(listItem.Tag);
}
}
return(values);
}
/// <summary>
/// Reads the expected results for a test case from the dataset.
/// </summary>
private TsCHdaItemValueCollection GetExpectedResults(DataSet.TestCase testcase)
{
// create item value collection.
TsCHdaItemValueCollection values = new TsCHdaItemValueCollection();
try
{
// set expected result.
values.Result = new OpcResult(testcase.ResultId, "");
// get the item values.
DataRow[] rows = testcase.GetChildRows(mDataset_.TestCases.ChildRelations[0]);
// read the expected values.
if (rows != null)
{
foreach (DataSet.TsCHdaItemValue row in rows)
{
// create item value.
TsCHdaItemValue value = new TsCHdaItemValue();
if (!typeof(DBNull).IsInstanceOfType(row["Value"]))
{
value.Value = row.Value;
}
value.Timestamp = Basetime.AddSeconds((double)row.Timestamp);
value.Quality = new TsCDaQuality((short)(row.Quality & 0x000FFFF));
value.HistorianQuality = (Technosoftware.DaAeHdaClient.Hda.TsCHdaQuality)Enum.ToObject(typeof(Technosoftware.DaAeHdaClient.Hda.TsCHdaQuality), (int)(row.Quality & 0xFFFF0000));
// add to list.
values.Add(value);
}
}
}
catch (Exception)
{
// ignore exceptions - return at whatever was read correctly.
}
// return set of values.
return(values);
}