How to know the first checkbox checkedchangeg in Combobox?

[Phuc]

Hi all,

I have a combobox which contains checkboxes inside. The first item is "ALL", it means when this item is checked, the other checkboxes will be unchecked and disabled.
When the first item is unchecked, the other items will be enabled for user checking them.

How can I know if user is interacting with the first item for doing the above action?

Thanks for your help

[Shinu]

Hello Phuc,

Try implementing the following code library approach.
Combobox with checkboxes and select all.

Thanks,
Shinu.

[Phuc]

Thank you, Shinu.
It works well.

Regards,
Phuc PHAM

[Manish]

Hi shinu,

I am face same problem but this technique we are not able to perform this functionality if we use checkbox list.

Please help if it is possible.