exception when moving with TAB to next cell

I have a datagrid inside in a form using also formkeypreview function and and I am getting an access violation, when moving from a cell to an other with TAB.
I can not reproduce it in a clean project for the moment but the screenshot of the error is following and it seems that the TMSFNCEDIT of the datagrid's cell is nil


The executable runs in debug mode, so no optimizations exist.

Exactly the save form/unit with the TdataGrid when used in new project does not give any error.
When used inside an existing application I have , it gives the above exception: a TTMSFNCDataGridEdit runs the DoKeyUp event but it is already nil.

I have managed to create a project that reproduces the problem
Press the button to have a new form open
In the new form, press the button to add a row in the datagrid
The put the cursor in the first column/row and try to move with a TAB
Sometimes you will notice a combobox to exist..from the barbage it reads in the memory...
ftestacc.zip (13.5 KB)

Thanks, we have applied a fix for this issue. Next version of TMS FNC UI Pack will address this.

1 Like

Thank you..
Is it possible to send me the fix through message?