Coding⏱️ 2 min read📅 2026-06-02

How to Fix: Why is UnhandledExceptionEventArgs.ExceptionObject an object and not an Exception?

The ExceptionObject property in UnhandledExceptionEventArgs is an object that wraps the underlying exception, which can be cast to an Exception.

Quick Answer: Cast UnhandledExceptionEventArgs.ExceptionObject to an Exception to access its properties and methods.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🚀 How to Resolve This Issue
  3. 💡 Conclusion

UnhandledExceptionEventArgs.ExceptionObject is not an Exception because it's a custom class that wraps the underlying exception. This allows you to access additional information about the unhandled exception, such as its inner exception.

⚠️ Common Causes

  • Using a custom exception type in your application.

🚀 How to Resolve This Issue

Method 1: Using the TypeCode

  1. Step 1: Cast UnhandledExceptionEventArgs.ExceptionObject to its underlying type using the TypeCode.

Method 2: Using Reflection

  1. Step 1: Use reflection to get the underlying exception type.

💡 Conclusion

When will UnhandledExceptionEventArgs.ExceptionObject be null? It will be null when no unhandled exceptions are thrown in your application.

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