Hello,

I want to make the first item in the CheckedListBox, let say a Header. When I check/uncheck this Header, all other items will be checked/unchecked following the Header and the checked state of Header also depends on checked state of other items. I tried to make it but it does not work, when I check or uncheck Header nothing changes. Could you please help me out?

Thank you very much for your help.

Aves 

PS: I already send a sample project to your support email.

Hi Palli,

I tried moving return statement and something changed, but it is still not that I want.

What i want to do is: Header is checked if all other items are checked and header is unchecked if at least one item is unchecked. Header is using for fast check/uncheck all items.

It seems to me from the original code, when I checked Header, all other items are checked and after that some of them call unchecked and nothing changes.

Aves

Hi Palli,

I moved Header outside CheckedListBox ( using normal CheckBox) and everything worked. Btw CheckedListBox is slowly when debug in VisualStudio, but in IIS it is much more better.

Thanks again for your help.

Aves