chapter 10, lesson 2: debugging and tracing.

Debug, Debugger classes - more efficient than stepping through code - less time consuming.

Debugger Class

• enables comm with a debugger app.
• Break() - equiv of setting bk'pt manually.
• Log() - posts info to the attached Debugger, if present. To listener objs attached to debugger.
• Listener - DefaultTraceListener - take Log mthds and write as text to specified target.

Debug Class

• more granularity than Debugger.
• Assert() - for true/false conditions - if condition isn't true it will break into the debugger automatically.
• in release build no debug commands are compiled in so no perf degredation.
• Fail() - doesn't use an evaluation - simply breaks at offending line and outputs failure msg.
• Write(), WriteIf()...

Debug Attributes

• DebuggerBrowsable attr - [DebuggerBrowsable(DebuggerBrowsableState.Never)]
• DebuggerDisplay - configure top line for class in Locals window.
• DebuggerHidden - stops bk'pt being set inside anything it decorates.