Where Is |Datadirectory| Defined

ADO.NET |DataDirectory| where is this documented?

|DataDirectory| is a substitution string so you can configure the location of your database file separately.

So instead of:

SqlConnection c = new SqlConnection (
   @"Data Source=.\SQLDB; AttachDbFilename=C:\MyDB\Database.mdf;Initial Catalog=Master");

you do the following:

// Set |DataDirectory| value
AppDomain.CurrentDomain.SetData("DataDirectory", "C:\myDB");

// SQL Connection String with |DataDirectory| substitution string
SqlConnection c = new SqlConnection (
   @"Data Source=.\SQLDB; AttachDbFilename=|DataDirectory|\Database.mdf;Initial Catalog=Master");

Where is source location?

The Source file must be in the same directory of the file that you put this code illustrative img if you use a server to host your site the same logic applies, you can also use a subdirectory like a folder "myfolder" and add this the location in the source like that

There is another ways to access a file that is out of the folder using for example ../ to step back or using ./ to make the path start in the root folder

[UPDATE] Try this in your index.html in the Server after that try to access your domain "http://stevegilman.net/index.html" if still dosen't work keep the files like that that I'll will check, but try others browsers like Firefox or Opera to test

[UPDATE 2] the first source code is my with only one type of Double Quotes your is below with two types of Quotes, Curly and Stright Quotes

Where is /data/data folder android

/data/data is a part of your device's internal storage, and where all apps are installed to. You cannot browse it directly unless you have a rooted device.

As for where it points to, it simply points to a part of your internal storage.

Where is Visual Studio 2022 storing the nupkg-files

There are several locations where the nuget files are stored and/or decompressed. You get them with the following command:

dotnet nuget locals -l all

For me, this returns:

C:\projects>dotnet nuget locals -l all
http-cache: C:\Users\PMF\AppData\Local\NuGet\v3-cache
global-packages: C:\Users\PMF\.nuget\packages\
temp: C:\Users\PMF\AppData\Local\Temp\NuGetScratch
plugins-cache: C:\Users\PMF\AppData\Local\NuGet\plugins-cache

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