PromptPlus

# PromptPlus ## **Select<T>** [](https://www.nuget.org/packages/PromptPlus) [](https://opensource.org/licenses/MIT) [](https://dotnet.microsoft.com/)

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A scrollable, filterable list where the user picks one item and confirms with Enter.

Select<T> turns any collection into an interactive menu. It works with strings, enums, records, or your own types; it can group items under headers, filter as the user types, auto-select the last match, show extra info per row, and validate the choice before returning it.

☑️ Need to pick several items at once? Use the MultiSelect control — same list model, with checkboxes.

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On this page

Sub-page	What you will find
Index (this page)	What it is, when to use it, first examples, the method map
Methods	Every fluent method — signature, parameters, defaults, and a snippet
Operations	Keyboard, filtering, grouping, validation, history, view-only
Styles	The SelectStyles regions and how to recolor them

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When to use it

Use Select<T> when…	Consider instead…
The user picks one option from a known set	—
The user may pick several	MultiSelect
The data is tabular (multiple columns)	TableSelect
The data is hierarchical	TreeSelect
It is a yes/no or single-key answer	KeyPress / Confirm

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Minimal example

using PromptPlusLibrary;

var result = PromptPlus.Controls
    .Select<string>("Favorite color")
    .AddItems(["Red", "Green", "Blue"])
    .Run();

if (!result.IsAborted)
    PromptPlus.Console.WriteLine($"You chose {result.Content}");

• Select<string>("Favorite color") creates a list of strings. The type argument T is the item type.
• .AddItems([...]) fills the list; .AddItem(x) adds one at a time.
• .Run() renders the list and blocks until Enter (confirm) or Esc (abort), returning a ResultPrompt<T>.

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Selecting from an enum

Select<T> reads enum members automatically — including [Display(Name = ..., Order = ...)] attributes for the label and ordering. No AddItems call needed:

enum Environment { Dev, Test, Staging, Prod }

var env = PromptPlus.Controls.Select<Environment>("Target environment").Run();

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A richer example

using PromptPlusLibrary;

var city = PromptPlus.Controls
    .Select<string>("Which city?", "Type to filter")
    .AddGroupedItems("North America", ["Seattle", "Boston", "New York"])
    .AddGroupedItems("Asia",          ["Tokyo", "Singapore", "Shanghai"])
    .Filter(FilterMode.Contains)     // live filtering as the user types
    .PageSize(5)                     // 5 rows visible at a time
    .Run();

This combines grouping (headers), filtering, and paging — see Operations for how they behave together.

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Method map

Grouped by purpose. Full signatures and examples are on the Methods page.

Purpose	Methods
Add items	AddItem, AddItems, AddGroupedItem, AddGroupedItems, AddSeparator
Load from a source	Interaction, InteractionAsync
Item text & info	TextSelector, TextSelectorAsync, ExtraInfo, ExtraInfoAsync, HideTipGroup
Filtering & paging	Filter, AutoSelect, PageSize
Initial value	Default, UseDefaultHistory, DefaultMatchBy
Validate on confirm	PredicateSelected, PredicateSelectedAsync
Read-only display	ViewOnly
Dynamic description	ChangeDescription, ChangeDescriptionAsync
History	EnableHistory
Appearance & behavior	Styles, Options
Run	Run

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Return value

Select<T> returns ResultPrompt<T> — the single chosen item.

Member	Meaning
.Content	The selected T (default of T if aborted)
.IsAborted	true when the user pressed Esc

var (color, aborted) = PromptPlus.Controls
    .Select<string>("Color").AddItems(["Red", "Green"]).Run();
if (!aborted) PromptPlus.Console.WriteLine(color);

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See also

• Methods — the full fluent API
• Operations — keyboard, filtering, grouping, validation
• Styles — recolor the list regions
• MultiSelect — multiple-choice sibling
• TableSelect · TreeSelect — tabular and hierarchical pickers

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