I use a TwwDbGrid and a TIBOQuery.
In the OnChange-event of Field1 I change the value of Field2 that
is depending on Field1.
The change of Field2 is not visible in the grid.
So I use a call to InvalidateRows in the OnChange-event. Then the
change of Field2 is instantly visible in the grid.
But when I change Field1 a second time, without posting it first,
an exception is raized.
How do I solve this?

tia,


_________________________

Gerard J.M. Houtenbos
DoubleWood Software