Beginning Ajax With ASP.NET (2006).pdf

Debugging
Figure 13-12
Right-clicking on the cntrl variable with the mouse brings up a context menu, again similar to
the menu presented to users when they are debugging server-side code. Traditional debugging
mechanisms are available such as Add watch to add the display of the cntrl variable to the
Watch window at the bottom of the display. These features are discussed in more detail later in
this chapter. Alternatively, a developer can open a Quick watch window that allows the developer
to open a dialog box that provides for easy examination of the variables contents. This window
is similar to the Watch window but provides a more direct and prevalent way of interacting
with and examining a specific variable. A modal window is presented for the user to navigate;
the sole purpose is to display the contents of the selected variable only. The functionality is otherwise
almost identical to the Watch window. The only real difference is the availability of a
Reevaluate button to allow a new variable to be entered into the text entry field and examined.
8. Press F10 again to advance the programs execution to the next line. Program execution should
now be paused on the line that reads:
number++;
9. Position the mouse over the number variable. The debugger should display the value of the
number variable, as shown in Figure 13-13.
Currently, the value of the number variable is as expected — that is, it is equal to the contents of
the input textbox control defined within the form.
Figure 13-13
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