We have tested a scenario similar to what you described, and we got acceptable results.
The test application was done both in VS 2003 and VS 2005 C#. It generates a dataset of 60 column by 90000 rows in memory, then fill and clear the grid. The result I get on my machine (which is very average) is under 20 seconds for the filling and clearing, and if I do it a second time, it is even a bit faster. Results were the same in both 2003 and 2005.
Imported from legacy forums. Posted by André (had 2794 views)