/// <summary>
/// Implements IModelErrorOwner.GetErrorCollection
/// </summary>
protected new IEnumerable <ModelErrorUsage> GetErrorCollection(ModelErrorUses filter)
{
if (filter == 0)
{
filter = (ModelErrorUses)(-1);
}
if (0 != (filter & (ModelErrorUses.Verbalize | ModelErrorUses.DisplayPrimary)))
{
CardinalityRangeOverlapError overlapError = CardinalityRangeOverlapError;
if (overlapError != null)
{
yield return(overlapError);
}
ConstraintDuplicateNameError duplicateName = DuplicateNameError;
if (duplicateName != null)
{
yield return(duplicateName);
}
}
// Get errors off the base
foreach (ModelErrorUsage baseError in base.GetErrorCollection(filter))
{
yield return(baseError);
}
}
/// <summary>
/// Verify that ranges are ordered and non-overlapping and handle the
/// corresponding error.
/// </summary>
private void ValidateRanges(INotifyElementAdded notifyAdded)
{
LinkedElementCollection <CardinalityRange> ranges = RangeCollection;
int rangeCount = ranges.Count;
int prevMin = -1;
int prevMax = -1;
bool hasError = false;
for (int i = 0; i < rangeCount; ++i)
{
CardinalityRange range = ranges[i];
int lower = range.LowerBound;
int upper = range.UpperBound;
if (upper == -1)
{
upper = int.MaxValue;
}
if (lower < 0 ||
lower <= prevMin ||
lower <= prevMax ||
upper <= prevMax)
{
hasError = true;
break;
}
prevMin = lower;
prevMax = upper;
}
CardinalityRangeOverlapError overlapError = this.CardinalityRangeOverlapError;
if (hasError)
{
if (overlapError == null)
{
overlapError = new CardinalityRangeOverlapError(Partition);
overlapError.CardinalityConstraint = this;
overlapError.Model = this.Model;
overlapError.GenerateErrorText();
if (notifyAdded != null)
{
notifyAdded.ElementAdded(overlapError, true);
}
}
}
else if (overlapError != null)
{
overlapError.Delete();
}
}