I have created a container with a text field and a command button which I would like to include in a grid.
It will be used to enter a value which will be looked up in another table. The user can also click on the command button which will display all of the look-up values (in another grid) from which they can pick one.
The problem that I am having is setting the 'current control' in the column.
If I try to use the containername.textfield I get an error 'Expression evaluated to an illegal value'. I have set sparse to false.

Previously, I used a combo box in the column but am now moving away from them due to a bug that was documented here.

Any suggestions as what I am doing wrong with the container or a better way to accomplish the same task are appreciated.

TIA.