DataGrid Speed

[Michael Doub]

Does anyone understand the basic internal workings of DataGrid enough to help me understand what is going on.  I am trying to use the least amount of memory and maximize performance on IOS.

I have a field of 4000 lines with 6 items in each line that have been pre-sorted.   Is it better for me to set the dgText or manually create an array and use dgData.   Either I create the array or the data grid library does.   Is the data grid library unpacking this array into text anyway?

What is going on under the covers with persistent data?   Can I climate a copy of the data if this is turned off?

Thanks in advance.
   -= Mike