winforms - How to move label control within picturebox control -

when tried move label control within picturebox control, mouse pointer become "unavailable"(used indicate surface isn't valid drop target).

in case not single event of picturebox fire.

is there other way so.

it's still possible move label on top of picturebox going properties , changing location property.

if label no longer visible after this, might hidden behind picturebox (lower z-index). solve this, right-click on picturebox , choose send back.