/// <summary>
/// Try to get the row at the given index from the buffer or cache
/// </summary>
/// <param name="cursor"></param>
/// <returns></returns>
public bool TryToGetNextRow(
VoArrayListCursor cursor)
{
object[] vo = null;
int ri = cursor.Position + 1;
AssertMx.IsTrue(ri >= 0, "Invalid row index:" + ri);
if (ri >= TotalRowCount)
{
if (DebugCaching)
{
DebugLog.Message(string.Format("Row {0} not in cache or buffer (cacheSize: {1}, bufferSize: {2})", ri, RowsWrittenToCache, RowBuffer.Count));
}
return(false); // not in collection
}
vo = GetRow(ri);
cursor.CurrentRow = vo;
cursor.Position = ri;
return(true);
}
/// <summary>
/// Restore the cursor state to a previous value
/// </summary>
/// <param name="savedState"></param>
public void Restore(
ref VoArrayListCursor cursorToRestore)
{
cursorToRestore = this;
return;
}
/// <summary>
/// Clone the current cursor state so it can be restored later
/// </summary>
/// <returns></returns>
public VoArrayListCursor Save()
{
VoArrayListCursor cs2 = (VoArrayListCursor)MemberwiseClone(); // do shallow clone
return(cs2);
}
