// existing functionality, it calls the overlaod with fireEvent== true, so it still fires the event
private int InsertRecord(int record, bool fireEvent)
{
Bid.Trace("<ds.Index.InsertRecord|INFO> %d#, record=%d, fireEvent=%d{bool}\n", ObjectID, record, fireEvent);
// SQLBU 428961: Serious performance issue when creating DataView
// this improves performance when the is no filter, like with the default view (creating before rows added)
// we know can append when the new record is the last row in table, normal insertion pattern
bool append = false;
if ((0 == IndexFields.Length) && (null != table))
{
DataRow row = table.recordManager[record];
append = (table.Rows.IndexOf(row) + 1 == table.Rows.Count);
}
int nodeId = records.InsertAt(-1, record, append);
recordCount++;
MaintainDataView(ListChangedType.ItemAdded, record, !fireEvent);
if (fireEvent)
{
if (DoListChanged)
{
OnListChanged(ListChangedType.ItemAdded, records.GetIndexByNode(nodeId));
}
return(0);
}
else
{
return(records.GetIndexByNode(nodeId));
}
}
// existing functionality, it calls the overlaod with fireEvent== true, so it still fires the event
private int InsertRecord(int record, bool fireEvent)
{
DataCommonEventSource.Log.Trace("<ds.Index.InsertRecord|INFO> {0}, record={1}, fireEvent={2}", ObjectID, record, fireEvent);
// this improves performance when the is no filter, like with the default view (creating before rows added)
// we know can append when the new record is the last row in table, normal insertion pattern
bool append = false;
if ((0 == _indexFields.Length) && (null != _table))
{
DataRow row = _table._recordManager[record];
append = (_table.Rows.IndexOf(row) + 1 == _table.Rows.Count);
}
int nodeId = _records.InsertAt(-1, record, append);
_recordCount++;
MaintainDataView(ListChangedType.ItemAdded, record, !fireEvent);
if (fireEvent)
{
if (DoListChanged)
{
OnListChanged(ListChangedType.ItemAdded, _records.GetIndexByNode(nodeId));
}
return(0);
}
else
{
return(_records.GetIndexByNode(nodeId));
}
}
private void InitRecords(IFilter filter)
{
DataViewRowState states = recordStates;
// SQLBU 428961: Serious performance issue when creating DataView
// this improves performance when the is no filter, like with the default view (creating after rows added)
// we know the records are in the correct order, just append to end, duplicates not possible
bool append = (0 == IndexFields.Length);
records = new IndexTree(this);
recordCount = 0;
// SQLBU 428961: Serious performance issue when creating DataView
// this improves performance by iterating of the index instead of computing record by index
foreach (DataRow b in table.Rows)
{
int record = -1;
if (b.oldRecord == b.newRecord)
{
if ((int)(states & DataViewRowState.Unchanged) != 0)
{
record = b.oldRecord;
}
}
else if (b.oldRecord == -1)
{
if ((int)(states & DataViewRowState.Added) != 0)
{
record = b.newRecord;
}
}
else if (b.newRecord == -1)
{
if ((int)(states & DataViewRowState.Deleted) != 0)
{
record = b.oldRecord;
}
}
else
{
if ((int)(states & DataViewRowState.ModifiedCurrent) != 0)
{
record = b.newRecord;
}
else if ((int)(states & DataViewRowState.ModifiedOriginal) != 0)
{
record = b.oldRecord;
}
}
if (record != -1 && AcceptRecord(record, filter))
{
records.InsertAt(-1, record, append);
recordCount++;
}
}
}