dbcontrol | wrapper around Go 's database/sql package | SQL Database library

In general, you'd create your database object outside of this class and then inject it as a parameter. This is called Dependency Injection and is a Good Thing™.

Then you'd use that parameter within your class-specific methods. So your employee class would look something like this:

To access methods in a class, you first need to initialize that class somewhere.

You are including the jQuery script before the html is finished.

Therefore, there is no #warning on the page, yet. Nothing is shown.

You should either include your script after the

or you can tell jQuery to wait until the document is ready before applying the show():

You need to be calling OnPropertyChanged():

The only place in the code that I see DBcmd.ExecuteNonQuery is in search text changed event. Do really want to run this code every time the users types a letter?

Do not create a new connection at the class (Form) level. Every time the connection is used it needs to be disposed so it can be returned to the connection pool. Using...End Using blocks handle this for you even if there is an error.

Don't call .ExecuteNonQuery. This is not a non query; it begins with Select.

You can't execute a command without an Open connection.

Never concatenate strings for sql statments. Always use parameters.

The connection is open while the reader is active. Don't update the user interface while the connection is open.

Load a DataTable and return that to the user interface code where you update the user interface.

Found out my issue. I hadn't given a name for each select.

Before

The bank-hosted authentication URL is handled by redirecting through that redirect_to_url.url, or alternatively is managed automatically when using Stripe's Payment Intent API with confirmCardPayment in Stripe.js v3 (migration guide). If you use confirmCardPayment, you yourself don't need to manage the redirect at all. This is the recommendation approach to supporting 3D Secure.

You can support 3DS using the Sources API, but this is deprecated and no longer recommended.

Replace private DBDriver DBdriver; in Controller, DBAdder to @Autowired private final DBDriver DBdriver

There is a proper way to work with file-based databases in VB.NET.

1. Add the data file to your project in the Solution Explorer. If you're prompted to copy the file into the project, accept.
2. Set the Copy To Output Directory property of the data file to Copy If Newer.
3. Use "|DataDirectory|" to represent the folder path of the data file in your connection string, e.g. Dim connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\Hotel.mdb;".

Now you have two copies of your database. You have the one in the project folder, with the other source files, and the one in the output folder, with the EXE. The source file should stay clean, unsullied by test data. The copy in the output folder is the one you connect to when you debug so that's the one you need to look in to find any changes you make while debugging/testing.

Because you set it to only copy when the source file is newer than the output file, any changes you make while testing will not be lost unless you actually make a change to the source file, e.g. add a column or a table. By default, that property is set to Copy Always, which means that your source file is copied over the output file every time the project is built, so any time any source file changes and you run the project again. That's why your data "disappears".