/// <summary>
/// Prompts the user to select items and specify trend properties.
/// </summary>
public TsCHdaTrend ShowDialog(TsCHdaServer server)
{
if (server == null)
{
throw new ArgumentNullException("server");
}
mServer_ = server;
mResults_ = null;
// create new trend.
TsCHdaTrend trend = new TsCHdaTrend(mServer_);
// set reasonable defaults.
trend.StartTime = new TsCHdaTime("YEAR");
trend.EndTime = new TsCHdaTime("YEAR+1H");
browseCtrl_.Browse(mServer_, null);
trendCtrl_.Initialize(trend, RequestType.None);
itemsCtrl_.Initialize(mServer_, (OpcItem[])null);
resultsCtrl_.Initialize(mServer_, mResults_);
// update dialog state.
SetState(false);
// show dialog.
if (ShowDialog() != DialogResult.OK)
{
return(null);
}
// create or update the trend.
trendCtrl_.Update(trend);
// add new items.
if (mResults_ != null)
{
foreach (OpcItemResult item in mResults_)
{
if (item.Result.Succeeded())
{
trend.Items.Add(new TsCHdaItem(item));
}
}
}
// return new trend.
return(trend);
}
/// <summary>
/// Prompts the user to specify values to insert for an item.
/// </summary>
public bool ShowDialog(TsCHdaServer server, OpcItem item, bool synchronous)
{
if (server == null) throw new ArgumentNullException("server");
mServer_ = server;
mSynchronous_ = synchronous;
mItem_ = item;
mValues_ = null;
mResults_ = null;
// create new trend.
mTrend_ = new TsCHdaTrend(mServer_);
// set reasonable defaults.
mTrend_.StartTime = new TsCHdaTime("YEAR");
mTrend_.EndTime = new TsCHdaTime("YEAR+1H");
browseCtrl_.Browse(mServer_, null);
valuesCtrl_.Initialize(mServer_, null);
resultsCtrl_.Initialize(mServer_, mValues_, mResults_);
asyncResultsCtrl_.Initialize(mServer_, null);
// update dialog state.
SetState();
// show dialog.
bool result = (ShowDialog() == DialogResult.OK);
// release item handles.
mTrend_.ClearItems();
// return dialog result.
return result;
}
/// <summary>
/// Prompts the user to select an item and specify trend properties.
/// </summary>
public TsCHdaItemValueCollection ShowDialog(TsCHdaServer server, RequestType type, bool synchronous)
{
if (server == null)
{
throw new ArgumentNullException("server");
}
mServer_ = server;
mType_ = type;
mSynchronous_ = synchronous;
mSingleItem_ = true;
mResults_ = null;
// create new trend.
mTrend_ = new TsCHdaTrend(mServer_);
// set reasonable defaults.
mTrend_.StartTime = new TsCHdaTime("YEAR");
mTrend_.EndTime = new TsCHdaTime("YEAR+1H");
browseCtrl_.Browse(mServer_, null);
trendItemsCtrl_.Initialize(mTrend_, false, null);
trendCtrl_.Initialize(mTrend_, type);
itemsCtrl_.Initialize(null);
resultsCtrl_.Initialize(mServer_, null);
asyncResultsCtrl_.Initialize(mServer_, null);
// update dialog state.
SetState();
// show dialog.
bool result = (ShowDialog() == DialogResult.OK);
// release item handles.
mTrend_.ClearItems();
// return item values.
return((result)?mResults_[0]:null);
}
/// <summary>
/// Prompts the user to select attributes to read for an item.
/// </summary>
public TsCHdaItemAttributeCollection ShowDialog(
TsCHdaServer server,
OpcItem item,
TsCHdaTime startTime,
TsCHdaTime endTime,
bool synchronous)
{
if (server == null)
{
throw new ArgumentNullException("server");
}
mServer_ = server;
mItem_ = item;
mFixedItem_ = item != null;
mSynchronous_ = synchronous;
mResults_ = null;
// create new trend.
mTrend_ = new TsCHdaTrend(mServer_);
// set reasonable defaults.
mTrend_.StartTime = startTime;
mTrend_.EndTime = endTime;
browseCtrl_.Browse(mServer_, null);
trendCtrl_.Initialize(mTrend_, RequestType.ReadAttributes);
attributesCtrl_.Initialize(mServer_, null);
resultsCtrl_.Initialize(mServer_, mResults_);
asyncResultsCtrl_.Initialize(mServer_, null);
// update dialog state.
SetState();
// show dialog.
bool result = (ShowDialog() == DialogResult.OK);
// release item handles.
mTrend_.ClearItems();
// return item values.
return((result)?mResults_:null);
}