How to disable a checkbox in a checkedlistbox?

Question

I have some items in a CheckedListBox, I want to disable the CheckBox of first item in it.
i.e. I want to disable the first item in the C

Answer 1

This works for me:

checkedListBox1.SelectionMode = SelectionMode.None;

Which means no items can be selected

None: No items can be selected.

For more info, you can check it here: SelectionMode Enumeration.