BorisEetgerink.ConsoleExtensions 1.3.0

.NET Console Extensions

Various console extensions to handle user input.

Confirm

Display a confirmation prompt with a preset default. The user can select the yes or no key, press enter to select the default or escape to select the other option.

Usage

using BorisEetgerink.ConsoleExtensions;

// The default usage.
bool confirmDefault = ConsoleExtensions.Confirm("Continue?");

// Set the no option as the default.
bool continueWithCaution = ConsoleExtensions.Confirm("Are you sure?", false);

// Built in support for different languages.
bool confirmFrench = ConsoleExtensions.Confirm("Continuer?", true, 'o', 'n');

Output

Continue? [Y/n]:

Supported keys

• Enter: Select the default option (defaults to yes).
• Esc: Select the other option (defaults to no).
• y: The default yes-key. Can be overridden.
• n: The default no-key. Can be overridden.

PickOne

Display a prompt with a list of options. The user can select the appropriate option with the up and down arrow keys and confirm with the enter key.

Usage

using BorisEetgerink.ConsoleExtensions;

// Select from a list of hard-coded options:
int selectedIndex = ConsoleExtensions.PickOne("Which is your favorite OS?", "Linux", "MacOS", "Windows");

// Select from an IEnumerable<string> of options:
List<string> operatingSystems = new() { "Linux", "MacOS", "Windows" };
int selectedIndex = ConsoleExtensions.PickOne("Pick your favorite OS:", operatingSystems);

// Optionally set the selected index (defaults to zero, the first option):
List<string> operatingSystems = new() { "Linux", "MacOS", "Windows" };
int selectedIndex = ConsoleExtensions.PickOne("Pick your favorite OS:", 2, operatingSystems);

Output

Pick your favorite OS:
>Linux
 MacOS
 Windows

Supported keys

• ↑ / ↓: Select the previous or the next option from the list.
• Enter: Confirm the selected option.

ReadInt

Extension to ReadLine to enter a number.

Usage

using BorisEetgerink.ConsoleExtensions;

int number = ConsoleExtensions.ReadInt("ID>", 42, "Invalid ID.");

Output

ID>abc
Invalid ID.
ID>42

Supported keys

See supported keys of ReadLine.

ReadLine

Enable a prompt and default input as an extension to Console.ReadLine().

Usage

using BorisEetgerink.ConsoleExtensions;

string? line = ConsoleExtensions.ReadLine("What is your favorite color? >", "Green");

Output

What is your favorite color? >Green

Supported keys

• Backspace / Delete: Remove one character to the left or right.
• ← / →: Move the cursor to the left or right.
• Ctrl + ← / Ctrl + →: Move the cursor one word to the left or right.
• Home / End: Move the cursor to the beginning or the end of the line.
• Esc: Clear the line.
• Ctrl + Z: Reset the line to the default input.
• Enter: Confirm the input.