c# OPCClient using OPCAutomation.DLL wrapper|Classic OPC: DA, A&E, HDA, XML-DA, etc.|Forum|OPC Foundation

private void MyOPCGroup_DataChange(int TransactionID, int NumItems, ref Array ClientHandles, ref Array ItemValues, ref Array Qualities, ref Array TimeStamps)
{
   for (int i = 1; i <= NumItems; i++)
   {
      int iHandles = Convert.ToInt32(ClientHandles.GetValue(i));

      string abc = Convert.ToString( ItemValues.GetValue(i));

      // How to GetValue() of VT_ARRAY type Item ??

   }
}

See the above DataChange implementation. This works great for single item but How to implement to Read Float Array of 2000 points?