public void Delete(int[] ndxData)
{
Assert(IsConnected);
Assert(ndxData != null);
Assert(ndxData.Count(x => x < 0 || RowCount <= x) == 0);
var indices = ndxData.OrderByDescending(x => x).ToArray();
lock (m_rwLock)
{
for (int i = 0; i < indices.Length; ++i)
{
m_writer.Position = 0;
m_writer.Write(m_header.FirstDeletedFrameIndex);
int ndxFrame = RowIndexToFrameIndex(indices[i]);
long framePos = GetFramePosition(ndxFrame);
WriteFrame(framePos);
m_header.FirstDeletedFrameIndex = ndxFrame;
int loc = m_recycledData.BinarySearch(ndxFrame);
Assert(loc < 0);
m_recycledData.Insert(~loc, ndxFrame);
}
m_header.LastWriteTime = DateTime.Now;
DataDeleted?.Invoke(indices);
}
}
private void Source_DataDeleted(IList <int> indices)
{
var data = new IDatum[indices.Count];
Monitor.Enter(m_lock);
for (int i = 0; i < indices.Count; ++i)
{
int ndx = indices[i];
Assert(m_cache.ContainsKey(ndx));
IDatum datum = m_cache[ndx];
m_cache.Remove(ndx);
m_ndxTable.Remove(datum.ID);
data[i] = datum;
var keys = from kv in m_ndxTable
where kv.Value > ndx
select kv.Key;
keys.ToList().ForEach(k => -- m_ndxTable[k]);
}
Monitor.Exit(m_lock);
DataDeleted?.Invoke(data);
}
private void DataProvider_DataDeleted(IList <int> Indices)
{
using (Lock())
{
var data = new IDatum[Indices.Count];
foreach (int ndx in Indices)
{
IDatum datum = null;
int i = 0;
while (i < m_cache.Count)
{
int index = m_cache[i].Item1;
if (ndx < index)
{
IDatum d = m_cache[i].Item2;
m_cache[i] = Tuple.Create(index - 1, d);
++i;
}
else if (index == ndx)
{
datum = m_cache[i].Item2;
m_cache.RemoveAt(i);
}
}
Assert(datum != null);
data[ndx] = datum;
T key = m_selector(datum);
m_dataIndices[key].Remove(ndx);
//adjust indices
foreach (List <int> lst in m_dataIndices.Values)
{
for (int k = 0; k < lst.Count; ++k)
{
if (ndx < lst[k])
{
--lst[k];
}
}
}
}
DataDeleted?.Invoke(data);
}
}
public void Delete(IList <int> indices)
{
Assert(IsConnected);
Assert(indices != null);
Assert(indices.Any(ndx => ndx < 0 || ndx >= Count) == false);
lock (m_table)
{
DataDeleting?.Invoke(indices);
m_table.Delete(indices);
if (AutoFlush)
{
m_table.Flush();
}
DataDeleted?.Invoke(indices);
}
}
private void OnNodeDataDeleted(TreeNode node)
{
DataDeleted?.Invoke(this, new EventArgs <object>(node.Tag));
}
void Table_DataDeleted(int[] indices) => DataDeleted?.Invoke(indices);
