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Steilla Mitchel

Steilla Mitchel

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I completed my post-graduation in 2013 in the engineering field. Engineering is the application of science and math to solve problems. Engineers figure out how things work and find practical uses for scientific discoveries. Scientists and inventors often get the credit for innovations that advance the human condition, but it is engineers who are instrumental in making those innovations available to the world. I love pet animals such as dogs, cats, etc.

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Aryan Kumar

Aryan Kumar

02-Sep-2023

Sure. The main difference between ArgumentException and ArgumentNullException is that ArgumentException is thrown when an argument passed to a method is invalid, while ArgumentNullException is thrown when an argument passed to a method is null.

Here is a table summarizing the key differences between ArgumentException and ArgumentNullException:

FeatureArgumentExceptionArgumentNullException
When is it thrown?When an argument passed to a method is invalid.When an argument passed to a method is null.
What is the message?The message describes the invalid argument.The message specifies the argument that is null.
Where is it inherited from?ArgumentException inherits from Exception.ArgumentNullException inherits from ArgumentException.

Here are some examples of ArgumentException:

  • Passing a string to a method that expects an integer.
  • Passing a negative number to a method that expects a positive number.
  • Passing a null string to a method that expects a non-null string.

Here are some examples of ArgumentNullException:

  • Passing null to a method that expects an integer.
  • Passing null to a method that expects a string.
  • Passing null to a method that expects an array.

It is important to use the correct exception type when handling errors. If you use ArgumentException when you should have used ArgumentNullException, the error message will not be very helpful.

In general, you should use ArgumentNullException when an argument is passed to a method and it is null. You should use ArgumentException when an argument is passed to a method and it is invalid, but not null.

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