/// <summary>
/// End table caching by writing out remaining records & opening file reader
/// </summary>
public void EndCaching()
{
if (!AllowCaching)
{
return;
}
if (CacheStartPosition < 0 || CacheWriter == null)
{
return; // caching active
}
if (RowsRemovedFromDataTable == 0)
{
if (CacheWriter != null)
{
CacheWriter.Close();
CacheWriter = null;
}
CacheStartPosition = -1;
return;
}
if (RowRetrievalState == RowRetrievalState.Running || RowRetrievalState == RowRetrievalState.Paused)
{
CancelRowRetrieval(); // cancel if not complete
}
WriteRowsToCache(false); // write out remaining rows
CacheWriter.Close();
CacheWriter = null;
CacheReader = new StreamReader(CacheFile);
CacheStartPosition = -1;
//RowCount = CacheStartRowCount; // restore counts (todo: fix this: gives zero for export count with this code)
//KeyCount = CacheStartKeyCount;
RowRetrievalState = RowRetrievalState.Paused;
if (DebugDetails)
{
ClientLog.Message("RowRetrievalState.Paused 3");
}
if (QueryManager.MoleculeGrid != null)
{
QueryManager.MoleculeGrid.EndUpdate();
QueryManager.MoleculeGrid.Refresh();
Application.DoEvents();
}
if (StatusBarManager != null)
{ // update status bar, may process an event that generates a request for more rows
StatusBarManager.DisplayRetrievalProgressState(RowRetrievalState);
StatusBarManager.DisplayFilterCounts(); // update count display
}
if (DebugCaching)
{
ClientLog.Message("EndCaching: " + DataTableMx.Rows.Count);
}
return;
}
