Use the Add Watchpoint dialog ( Creating watchpoint) to set a watchpoint. When the value at the memory address on which you set a watchpoint changes, your program's execution halts and the debugger takes control.
To set a watchpoint:
The process of setting a watchpoint varies depending upon the type of view:
The Add Watchpoint dialog appears.
The Add Watchpoint dialog appears.
The Breakpoints view shows information about the newly set watchpoint and the number of addressable units that the watchpoint monitors.
The Problems view shows error messages if the debugger fails to set a watchpoint.