How to Debug WixSharp Custom Actions in the Console?

WixSharp Custom Action Console Debugging Techniques

Effective debugging is crucial for ensuring the correct functionality of WixSharp custom actions. This guide outlines several methods for debugging these actions within the console environment.

Leveraging System.Diagnostics.Debugger.Launch()

One approach involves utilizing System.Diagnostics.Debugger.Launch() within your custom action code. This requires a conditional compilation directive:

#if DEBUG
    System.Diagnostics.Debugger.Launch();
#endif

Compile your project in DEBUG mode and execute the generated .msi installer. Upon execution of the custom action, a prompt will appear, offering the option to attach a debugger (like Visual Studio). This enables step-by-step code execution and inspection.

Utilizing Debug.Assert()

Alternatively, employ Debug.Assert(). This function displays a message box only when the code runs in DEBUG mode:

Debug.Assert(); // Or Debug.Assert(condition, message);

Troubleshooting Common Issues

If debugging proves unsuccessful, consider these troubleshooting steps:

• Clean Rebuild: Delete the bin folder and perform a clean rebuild of your project.
• Conditional Compilation Check: Double-check the accuracy of the #if DEBUG statement's placement and syntax.
• Build Configuration: Confirm that the .msi is built in DEBUG mode.

Illustrative Code Example

The following custom action demonstrates the integration of debugging techniques:

[CustomAction]
public static ActionResult CustomAction(Session session)
{
#if DEBUG
    System.Diagnostics.Debugger.Launch();
#endif
    MessageBox.Show("Hello World!" + session[IISSessions.AppPoolName], "External Managed CA");
    return ActionResult.Success;
}

By implementing these methods, you can efficiently debug your WixSharp custom actions and resolve any encountered issues.

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