The OnButtonClick event doesn't seem to work for this component.
I inserted
into the OnButtonClick procedure to see if it was being triggered but apparently not.
OnButtonClick may not be enough because the filter can be emptied also by delete or backspace.
Good point. I'll see if I can check whether the edit box is empty instead.
As for it not being very intuitive, I kind of agree but removing the option to add, delete or edit entries when using the filter would save me so many headaches.
I've attached a screenshot of the programs UI. Greying out the above options shouldn't be too confusing for the user.