Problem description
I want to add a checkbox that I can check in the design view.
What I have tried
I added a checkbox to my document in the source view: <input type="checkbox" />
The checkbox survives going to design view. It does not react on clicks. Double clicking it pops up a dialog in which I can set name, value and selected. Checking "selected" and click ok does not affect the visual appearance of the checkbox, but going to source view shows: <input checked="checked" type="checkbox" />. Going to design view and back removes the checked attribute.
What I have not yet achieved
I want to toggle the checkbox in design view by single clicking.
Nothing should happen when double clicking.
The checked attribute must survive when I switch view.
How do I do that?