/// <summary>
/// Truncate the string blob to the specified last index.
/// </summary>
/// <param name="lastIndex">Index of last string to retain.</param>
public void Truncate(int lastIndex)
{
if (_index is null)
{
Refresh();
}
var l = _index[lastIndex] + get_LengthAt(lastIndex) * 2;
if (_lpwstr)
{
l = l + 2;
}
else
{
l = l + SizeDescriptorLength;
}
Array.Resize(ref _index, lastIndex + 1);
SafePtr.Length = l.ToInt64() - SafePtr.handle.ToInt64();
_count = _index.Length;
if (!_lpwstr)
{
switch (SizeDescriptorLength)
{
case 2:
{
_mem.set_UShortAt(0L, (ushort)_count);
break;
}
case 4:
{
_mem.set_UIntegerAt(0L, (uint)_count);
break;
}
case 8:
{
_mem.set_ULongAt(0L, (ulong)_count);
break;
}
}
}
}