Debugging

This chapter looks into features, which can make debugging an application easier.

Using DebuggerDisplayAttribute

The DebuggerDisplayAttribute determines how a class or structure is displayed in the debugger. This can save time if you have complex object, where you have a few key information, which are the most significant.

var steven = new Person("Steven", 31, Array.Empty<string>());
Console.WriteLine(steven);

[DebuggerDisplay("{Name} is {Age} years old with {PetNames.Count} pets.")]
public record Person(string Name, int Age, IReadOnlyCollection<string> PetNames);

In the debugger window or if you hover over the steven object the debugger will show:

Steven is 31 years old with 0 pets.