Trace vs Debug in .NET BCL

Question

It seems that the

• System.Diagnostics.Debug, and
• System.Diagnostics.Trace

are largely the same, with the notable exception that

Answer 1

This is full difference between Trace and Debug: Both Debug and Trace use System.Diagnostics namespace.

Debug

• It uses Debug class.
• It uses in debug build.
• It uses the time of application development.
• In Debug mode compiler inserts some debugging code inside the executable.
• Debug class works only in debug mode.
• Performance analysis cannot be done using Debug.
• Debugging uses to find error in program.
• For Debug we can use Debug.Write() method.
• Debug runs in same thread as main program execute.

Trace

• It uses Trace class.
• Trace statement includes by default when program compiled into released build.
• Trace class is used for testing and optimization even after an application is compiled and released.
• Trace class works in both case Debug mode as well as release mode.
• Trace runs in different thread form main program execute thread.
• For Trace we can use Trace.Write() method.
• It uses time of application deployment.

reference : csharp corner