This is a simple console-based PhoneBook application written in C#. The application allows users to manage their contacts by adding, deleting, updating, and viewing contact information.

• Add Information: Add a new contact with name, email, and phone number.
• Delete Information: Delete an existing contact by providing its ID.
• Update Information: Update the details of an existing contact.
• View All Information: Display all contacts stored in the PhoneBook.

• .NET Core SDK (version 5.0 or higher)
• PostgreSQL database

1. Clone the repository to your local machine:

   git clone <repository-url>

2. Navigate to the project directory:

   cd PhoneBook

3. Restore the dependencies:

   dotnet restore

4. Update the database connection string in PostgresContext.cs to match your PostgreSQL database settings.

5. Build the application:

   dotnet build

6. Run the application:

   dotnet run

Upon running the application, you will be presented with a menu offering various options to manage your contacts. Use the arrow keys to navigate through the menu and press Enter to select an option.

• Add Information: Enter the contact's name, email, and phone number. The application will validate the input before adding the contact.
• Delete Information: Enter the ID of the contact you want to delete. Confirm the deletion when prompted.
• Update Information: Enter the ID of the contact you want to update. Provide the new details for the contact.
• View All Information: Display all contacts stored in the PhoneBook.

Contributions are welcome! If you find any issues or have suggestions for improvements, please open an issue or create a pull request.

This project is licensed under the MIT License - see the LICENSE file for details.