How can I add such a text box in Visual Studio 2020?

Since Visual Studio 2022 can be used for many different programming languages and project types, I will give the guidance for a C# Windows form project. The steps can vary according to project type.

Steps to add a text box in a C# Windows Forms project:

1. Open or create project: Start Visual Studio 2022 and open an existing Windows Forms project or create a new one.
2. Select form: Once your project is open, navigate to the Windows Forms designer by double-clicking the form (usually Form1.cs) in the “Solution Explorer” window.
3. Open Toolbox window: If the Toolbox is not already open, you can open it by going to view -> Toolbox or simply pressing Strg+Alt+X.
4. Find Textbox: In the Toolbox you will find a category called “General Controls” or simply “Common Controls”. Under this category you will find the “TextBox” control element.
5. Add textbox: drag the “TextBox” control element from the toolbox into the form or click “TextBox” in the toolbox and then click the place in the form where the textbox is to appear.
6. Change properties: As soon as the text box is in the form, you can change their properties like size, position and others in the Properties window.
7. Add code: To add program logic, such as what happens when the user enters text, you can add an event handler in your C# code. You do that by double clicking on the text box in the designer. Visual Studio then automatically generates an event handler method for you.

That’s it! You have successfully added a text box to your Windows Forms project in Visual Studio 2022. If you have more questions, let me know!