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Errata for page 275

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Mark J Price 2023-01-16 08:47:10 +00:00
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If you find any mistakes in the seventh edition, *C# 11 and .NET 7 - Modern Cross-Platform Development Fundamentals*, or if you have suggestions for improvements, then please [raise an issue in this repository](https://github.com/markjprice/cs11dotnet7/issues) or email me at markjprice (at) gmail.com. If you find any mistakes in the seventh edition, *C# 11 and .NET 7 - Modern Cross-Platform Development Fundamentals*, or if you have suggestions for improvements, then please [raise an issue in this repository](https://github.com/markjprice/cs11dotnet7/issues) or email me at markjprice (at) gmail.com.
[**Errata** (19 items)](errata.md): Typos, tool user interface changes, or mistakes in code that would cause a compilation error that prevents a successful build. [**Errata** (20 items)](errata.md): Typos, tool user interface changes, or mistakes in code that would cause a compilation error that prevents a successful build.
[**Improvements** (3 items)](improvements.md): Changes to text or code that would improve the content. These are optional. [**Improvements** (3 items)](improvements.md): Changes to text or code that would improve the content. These are optional.

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**Errata** (19 items) **Errata** (20 items)
If you find any mistakes, then please [raise an issue in this repository](https://github.com/markjprice/cs11dotnet7/issues) or email me at markjprice (at) gmail.com. If you find any mistakes, then please [raise an issue in this repository](https://github.com/markjprice/cs11dotnet7/issues) or email me at markjprice (at) gmail.com.
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- [Page 185 - Creating a class library that needs testing](#page-185---creating-a-class-library-that-needs-testing) - [Page 185 - Creating a class library that needs testing](#page-185---creating-a-class-library-that-needs-testing)
- [Page 188 - Running unit tests using Visual Studio Code](#page-188---running-unit-tests-using-visual-studio-code) - [Page 188 - Running unit tests using Visual Studio Code](#page-188---running-unit-tests-using-visual-studio-code)
- [Page 244 - Init-only properties](#page-244---init-only-properties) - [Page 244 - Init-only properties](#page-244---init-only-properties)
- [Page 275 - Releasing unmanaged resources](#page-275---releasing-unmanaged-resources)
- [Page 322 - Revealing the location of a type](#page-322---revealing-the-location-of-a-type) - [Page 322 - Revealing the location of a type](#page-322---revealing-the-location-of-a-type)
- [Page 330 - Publishing a self-contained app, Page 354 - Exercise 7.3 – Explore PowerShell](#page-330---publishing-a-self-contained-app-page-354---exercise-73--explore-powershell) - [Page 330 - Publishing a self-contained app, Page 354 - Exercise 7.3 – Explore PowerShell](#page-330---publishing-a-self-contained-app-page-354---exercise-73--explore-powershell)
- [Page 412 - Compressing streams](#page-412---compressing-streams) - [Page 412 - Compressing streams](#page-412---compressing-streams)
@ -140,6 +141,14 @@ In Step 1, the project name `CalculatorLibUnitTest` should be `CalculatorLibUnit
In Step 1, I say to add a new file named `Records.cs` to the `PacktLibraryNetStandard2` project/folder. I should have said to the `PacktLibraryModern` project/folder. In Step 1, I say to add a new file named `Records.cs` to the `PacktLibraryNetStandard2` project/folder. I should have said to the `PacktLibraryModern` project/folder.
# Page 275 - Releasing unmanaged resources
> Thanks to `Wuu#0348` on the Packt Discord channels for raising this issue.
In the second bullet point after the large code block, I wrote, "It needs to check the `disposing` parameter and `disposed` field because if the finalizer thread has already run and it called the `~ObjectWithUnmanagedResources` method, then only unmanaged resources need to be deallocated." I should have written **managed** not **unmanaged**.
It might be clearer if I wrote, "It needs to check the `disposing` parameter and `disposed` field because if the finalizer thread has already run and it called the `~ObjectWithUnmanagedResources` method, then unmanaged resources will already have been deallocated and only managed resources remain to be deallocated by the garbage collector." I will do this in the next edition.
# Page 322 - Revealing the location of a type # Page 322 - Revealing the location of a type
> Thanks to Bob Molloy for raising this issue via email. > Thanks to Bob Molloy for raising this issue via email.