.net – Page 8 – Tarik Billa

Change selected and unfocused Listbox style to not be grayed out

April 6, 2024 by Tarik

I have done something like this using the following in a merged ResourceDictionary, it may help you: <Style TargetType=”ListBoxItem”> <Style.Resources> <!–SelectedItem with focus–> <SolidColorBrush x:Key=”{x:Static SystemColors.HighlightBrushKey}” Color=”LightBlue” Opacity=”.4″/> <!–SelectedItem without focus–> <SolidColorBrush x:Key=”{x:Static SystemColors.InactiveSelectionHighlightBrushKey }” Color=”LightBlue” Opacity=”.4″/> </Style.Resources> </Style>

Why is an explicit `this` constructor initializer required in records with a primary constructor?

April 6, 2024 by Tarik

This is because primary constructor parameters are a little bit special – they are in scope throughout initialization of the record. Guess what the following program prints: System.Console.WriteLine(new Foo(Bar: 42).Baz); public record Foo(int Bar) { public int Bar => 41; public int Baz = Bar; } 41 or 42? And the answer is… drumroll please… … Read more

How to turn off “Break when exception is thrown” for custom exception types

April 5, 2024 by Tarik

In the Debug > Exceptions dialog, click Add, select Common Language Runtime exceptions, and enter the full name (not the assembly-qualified name) of the exception. Then uncheck the Thrown checkbox for this exception.

How to use the dotnet-pack –version-suffix with csproj?

April 5, 2024 by Tarik

According the documentation, the Version property override the version on packing, instead, use the VersionPrefix. <PropertyGroup> <VersionPrefix>1.0.0</VersionPrefix> </PropertyGroup> And use the command to pack solution: dotnet pack –version-suffix beta Optionally you can set VersionPrefix and VersionSuffix in .csproj file. <PropertyGroup> <VersionPrefix>1.0.0</VersionPrefix> <VersionSuffix>alpha</VersionSuffix> </PropertyGroup>

Why “Data at the root level is invalid. Line 1, position 1.” for XML Document?

April 5, 2024 by Tarik

I eventually figured out there was a byte mark exception and removed it using this code: string _byteOrderMarkUtf8 = Encoding.UTF8.GetString(Encoding.UTF8.GetPreamble()); if (xml.StartsWith(_byteOrderMarkUtf8)) { var lastIndexOfUtf8 = _byteOrderMarkUtf8.Length-1; xml = xml.Remove(0, lastIndexOfUtf8); }

An error occurred in the Microsoft .NET Framework while trying to load assembly id 65675

April 5, 2024 by Tarik

This did the trick for me: USE <DATABASE>; EXEC sp_configure ‘clr enabled’ ,1 GO RECONFIGURE GO EXEC sp_configure ‘clr enabled’ — make sure it took GO USE <DATABASE> GO EXEC sp_changedbowner ‘sa’ USE <DATABASE> GO ALTER DATABASE <DATABASE> SET TRUSTWORTHY ON;

Autofit column in ClosedXML.Excel

April 5, 2024 by Tarik

Your cells don’t have any contents. Therefore AdjustToContents() won’t have any effect.

.NET 6 – Inject service into program.cs

April 5, 2024 by Tarik

Using .Net 6 is easy. Just execute GetService method after configure app services and have ran Build method. WebApplication? app = builder.Build(); var someService = app.Services.GetService<ISomeService>(); someService.DoSomething();

How do I add (IntelliSense) parameter comments for a method in C#

April 5, 2024 by Tarik

the “feature” is called XML comments. Just type /// right before your methods and VS will generate some xml tags. These will be used to show the tooltip as well as parameter info aso. /// <summary> /// this will be the tooltip /// </summary> /// <param name=”args”>args will be passed when starting this program</param> static … Read more

Can I debug while running a VS Unit Test?

April 5, 2024 by Tarik

Yes, with the Visual Studio Test project, you can set breakpoints and step through your code. Be sure to run your tests with the Debug menu — Tests -> Debug -> Tests in Current Context. For any given test class or test method, use the keyboard shortcut Ctrl-R Ctrl-T. When your cursor is in a … Read more