Outputting trace and debug information

When a template doesn't behave as you expect, you can gather information with the .NET System.Diagnostics.Trace and System.Diagnostics.Debug classes. They write to the Debug pane of the Output window.

The two classes have the same members. The difference is that Trace is always active, while Debug is active only when the template is compiled in debug mode.

System.Diagnostics.Trace.WriteLine("Template code reached this point.");

Useful members

Member	Type	Description
Assert	Method	Checks a condition and displays a message if the condition is false.
Fail	Method	Displays an error message.
Indent	Method	Increases the current IndentLevel by one.
IndentLevel	Property	The indent level.
IndentSize	Property	The number of spaces in an indent.
Unindent	Method	Decreases the current IndentLevel by one.
Write	Method	Writes the given information.
WriteIf	Method	Writes the given information only if a condition is true.
WriteLine	Method	Same as Write, followed by a line break.
WriteLineIf	Method	Same as WriteIf, followed by a line break.