Often you will find that you would like to turn off (disable) a breakpoint instead of removing the breakpoint because you wish to re-enable that breakpoint at a later time without having to re-enter that breakpoint's settings. A disabled breakpoint will cause the debugger to ignore the breakpoint as though it had not been set.
A filled circle icon indicates that the breakpoint is enabled. A hollow circle indicates that the breakpoint is disabled.
To toggle the enable status of a line breakpoint, select Breakpoint | Enable Breakpoint to enable a disabled line breakpoint or select Breakpoint | Disable Breakpoint to disable an enabled line breakpoint. Shortcut: ALT clicking on the breakpoint icon in the breakpoint strip will toggle the breakpoint's enable state.
To enable/disable all other breakpoint types, open the Breakpoints dialog (select View | Breakpoints) which will list all breakpoint for the current project. Select the breakpoints you wish to disable or enable and press the Enable or Disable buttons. You can also change the enable status of any breakpoint by display the property dialog for that breakpoint and toggling the enable check box option.
Breakpoints may be enabled or disabled anytime, even when a debug session is active. Changing the enable status for a breakpoint affects all debug sessions for the current project.