void CalculateTotal()
{
total = 0;
if (group.Details is RecordsDetails)
{
foreach (Record r in group.Records)
{
object obj = r.GetValue(field);
if (obj != null && !(obj is DBNull))
{
double d = Convert.ToDouble(obj);
total += d;
}
}
}
else
{
foreach (Group g in group.Groups)
{
IManualTotalSummaryArraySource tsa = g as IManualTotalSummaryArraySource;
ManualTotalSummary mt = tsa.GetManualTotalSummaryArray()[this.FieldIndex];
if (mt == null)
{
mt = new ManualTotalSummary(g, field);
}
double d = mt.Total;
total += d;
}
}
}
public void ApplyDelta(Element r, bool isObsoleteRecord, bool isAddedRecord, ChangedFieldInfo ci)
{
if (Dirty)
{
return;
}
ManualTotalSummary mt = this;
if (isObsoleteRecord)
{
if (ci.OldValue != null && !(ci.OldValue is DBNull))
{
mt.Total -= Convert.ToDouble(ci.OldValue);
}
}
else if (isAddedRecord)
{
if (ci.NewValue != null && !(ci.NewValue is DBNull))
{
mt.Total += Convert.ToDouble(ci.NewValue);
}
}
else
{
mt.Total += ci.Delta;
}
}
protected override void OnRecordChanged(Element r, bool isObsoleteRecord, bool isAddedRecord)
{
TableDescriptor td = TableDescriptor;
Group g = r.ParentGroup;
while (g is IManualTotalSummaryArraySource)
{
OnGroupSummaryInvalidated(new GroupEventArgs(g));
IManualTotalSummaryArraySource tsa = g as IManualTotalSummaryArraySource;
foreach (ChangedFieldInfo ci in this.ChangedFieldsArray)
{
ManualTotalSummary mt = tsa.GetManualTotalSummaryArray()[ci.FieldIndex];
if (mt != null)
{
mt.ApplyDelta(r, isObsoleteRecord, isAddedRecord, ci);
}
}
g = g.ParentGroup;
}
} // Fix ManualTotalSummary of parent groups.
