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Why is this an issue?

The rule is reporting when an exception is thrown from certain methods and constructors. These methods are expected to behave in a specific way and throwing an exception from them can lead to unexpected behavior and break the calling code.

public override string ToString()
{
  if (string.IsNullOrEmpty(Name))
  {
    throw new ArgumentException(nameof(Name));  // Noncompliant
  }
  //...
}

An issue is raised when an exception is thrown from any of the following:

Exceptions

Certain exceptions will be ignored in specific contexts, thus not raising the issue:

  • System.NotImplementedException and its derivatives are ignored for all the aforementioned.
  • System.InvalidOperationException, System.NotSupportedException, and System.ArgumentException and their derivatives are ignored in event accessors.

Resources

Documentation





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