I read about these variables a long time ago in some blog, but I could not find anything about those hidden little things, mainly the problem was that they are not called magic or hidden, they are documented and are called Pseudovariables;
Pseudovariables are terms used to display certain information in a variable window or the QuickWatch dialog box. You can enter a pseudovariable the same way you would enter a normal variable. Pseudovariables are not variables, however, and do not correspond to variable names in your program.
Anyway, I don't think many people know about them, here they are:
- $exception: Displays information on the last exception. If no exception has occurred, evaluating $exception displays an error message.
In Visual C# only, when the Exception Assistant is disabled, $exception is automatically added to the Locals window when an exception occurs. - $user: Displays a structure with account information for the account running the application. For security reasons, the password information is not displayed
try {
//some code
} catch (Exception e) {
//don't really need e here, just to get the exception information on the Watch window
}
you could write this code as:
try {
//some code
catch { } //put the breakpoint on this line, inspect $exception (Debug, Watch, Watch 1, type $exception there)
and get the same information.
The $user pseudovariable is pretty self explanatory.
in native code you have a few more pseudovariables available, check the link if you are interested.
those little things...
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