Is there a Chartlistbox "Enabled" by item?

[jbmckim]

I'm looking to enable/disable individual chartlistbox items as I have 4 ChartLineSeries, any one of which may be either on or off.  The on/off and other parameters associated with the curve data are handled in a separate form not available when the application is tracking data.  Turning off the unused is indicated. 

I can (and in any case will) cue the user by re-titling the chartlineseries but it would be better to do that in conjunction with disabling the individual listbox.  I'd rather not trap the box check and "null" it out when a disable would prevent entry in the first place. I found the enable/disable for the entire box but can't seem to locate for individual items.

Does this function exist and if so, where is it hiding in plain sight such that I can't find it? 

Thanks

[wp]

I'm afraid, I don't understand what you want to achieve. But to answer your question: no, individual listbox items (series) cannot be disabled.

Are you aware of the specific events OnItemClick (Series label in listbox clicked), OnSeriesIconDblClick (series symbol double-clicked), OnCheckboxClick (series checkbox clicked)?

See demo in folder components/tachart/demo/listbox of your Lazarus installation.

[jbmckim]

I can trap the click.  I was just hoping to be able to toggle the enable.

Thanks.