/// <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 edit the properties of a trend.
/// </summary>
public bool ShowDialog(TsCHdaTrend trend)
{
if (trend == null)
{
throw new ArgumentNullException("trend");
}
// initialize the controls.
trendCtrl_.Initialize(trend, RequestType.None);
// show the dialog.
if (ShowDialog() != DialogResult.OK)
{
return(false);
}
// update the trend.
trendCtrl_.Update(trend);
return(true);
}
/// <summary>
/// Prompts the user to edit the properties of a trend.
/// </summary>
public bool ShowDialog(TsCHdaTrend trend, RequestType type)
{
if (trend == null)
{
throw new ArgumentNullException("trend");
}
// initialize the controls.
trendCtrl_.Initialize(trend, type);
// adjust dialog height.
Height -= (buttonsPn_.Top - mainPn_.Height);
// show the dialog.
if (ShowDialog() != DialogResult.OK)
{
return(false);
}
// update the trend.
trendCtrl_.Update(trend);
return(true);
}