> For the complete documentation index, see [llms.txt](https://docs.shouldly.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.shouldly.org/documentation/equality/assignableto.md).

# AssignableTo

```cs
var theSimpsonsDog = new Person { Name = "Santas little helper" };
theSimpsonsDog.ShouldBeAssignableTo<Pet>();
```

[snippet source](https://github.com/shouldly/shouldly/blob/master/src/DocumentationExamples/CodeExamples/ShouldBeAssignableToExamples.ShouldBeAssignableTo.codeSample.approved.cs#L1-L2) | [anchor](#snippet-ShouldBeAssignableToExamples.ShouldBeAssignableTo.codeSample.approved.cs)

**Exception**

```
theSimpsonsDog
    should be assignable to
Simpsons.Pet
    but was
Simpsons.Person
```