/// <summary>
/// Called on the target table thread - copies adds/updates/deletes
/// </summary>
/// <param name="rowUpdatesAdd"></param>
/// <param name="colUpdaters"></param>
/// <param name="rowUpdatesDelete"></param>
private void CopyChanges(List <TableUpdate> rowUpdatesAdd, List <ITableColumnUpdater> colUpdaters, List <TableUpdate> rowUpdatesDelete)
{
try
{
// Copy the adds
if (rowUpdatesAdd != null)
{
for (var i = 0; i < rowUpdatesAdd.Count; i++)
{
_targetTable.AddRow();
}
}
// Copy the updates
foreach (var updater in colUpdaters)
{
updater.SetValues(_targetTable);
}
// Copy the deletes
if (rowUpdatesDelete != null)
{
for (var i = 0; i < rowUpdatesDelete.Count; i++)
{
_targetTable.DeleteRow(rowUpdatesDelete[i].RowIndex);
}
}
}
finally
{
StartTimer();
}
}
public void OnNext(TableUpdate update)
{
_threadMarshaller.Dispatch(
() =>
{
if (update.Action == TableUpdateAction.Add)
{
var newRowIndex = _targetTable.AddRow();
Debug.Assert(update.RowIndex == newRowIndex);
}
else if (update.Action == TableUpdateAction.Delete)
{
_targetTable.DeleteRow(update.RowIndex);
}
else if (update.Action == TableUpdateAction.Update)
{
// BUG: When this line is called the original update.Column may not contain the same state as when the outside method is called.
_targetTable.SetValue(update.Column.ColumnId, update.RowIndex, update.Column, update.RowIndex);
}
});
}
private void SynchroniseChanges(object state)
{
// Make copies to control exactly when we lock
List <TableUpdate> updates;
lock (_shared)
{
if (_updates.Count == 0)
{
return;
}
updates = _updates.DequeueAllToList();
}
_threadMarshaller.Dispatch(
() =>
{
foreach (var update in updates.Where(TableUpdate.IsRowUpdate))
{
if (update.Action == TableUpdateAction.Add)
{
_targetTable.AddRow();
}
else if (update.Action == TableUpdateAction.Delete)
{
_targetTable.DeleteRow(update.RowIndex);
}
}
// BUG: When this line is called the original update.Column may not contain the same state as when the outside method is called.
foreach (var update in updates.Where(TableUpdate.IsColumnUpdate))
{
_targetTable.SetValue(update.Column.ColumnId, update.RowIndex, update.Column, update.RowIndex);
}
});
}