Set value for entire column

Hey,

Is there any way to set cell values for a entire column without using a loop?

This works:

myGrid.forEachRow(function(rowId) { myGrid.cells(rowId, colIndex).setValue("newvalue"); });

But the perfomance is not realy the best while changing >50.000 rows.

Unfortunately the usage of the forEachRow loop is the only solution.