CheckedListBox

[Ferdinand Zaubzer]

Is there any possibility to prevent that any items can be checked, while
it is still possible to select items.
Thanks
Ferdinand

 

[Nicholas Paldino [.NET/C# MVP]]

Ferdinand,

I would derive a class from the CheckedListBox class and override the
WndProc method to handle the LBC_SETCHECKSTATE message.

Unfortunately, this is not a constant, but something that is determined
at run time. You will need to call the RegisterWindowMessage API function
through P/Invoke, passing the string "LBC_SETCHECKSTATE" string to it, and
then checking against that.

Hope this helps.