Is it possible to make some items of TRadioBox disabled?

[kinlion]

Hi, all,

I want to disable some items of a radiobox. That is, user can't check those items under some condition.
But I don't know how to.
Is it possible to do this?

Thanks in advance!

[wp]

RadioBox? You probably mean a TRadioGroup?

You get access to the individual buttons of a TRadioGroup by means of the Controls[] property; you must cast them to TRadioButton, though:

Code: Pascal  [Select][+][-]

1.   // Disable the radiobutton #1 of Radiogroup1
2.   TRadioButton(RadioGroup1.Controls[1]).Enabled := false;  

Alternatively and less hacky, you can use a TGroupbox and add the radio buttons separately; this way you have full control of the radiobuttons without any tricks.

[kinlion]

Thanks to wp