PromptPlus

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

← Back to Home • Next: TreeMultiSelect Control →

---

TreeSelect<T> paints its output in named regions. Each region is a TreeSelectStyles value you can recolor per control instance.

ℹ️ Styling is per control — there is no global “style all trees” API. The only style-related global setting is PromptPlus.Config.ContrastRatio.

---

The TreeSelectStyles regions

Region	What it paints
Prompt	The prompt text
Answer	The confirmed answer shown after .Run()
Description	The description line under the prompt
Selected	The focused / selected node
UnSelected	The non-focused nodes
Disabled	Nodes that cannot be confirmed (e.g., containers under SelectLeafOnly)
Error	The validation error line
Pagination	The page indicator
Tooltips	The keyboard-hint line
Lines	The tree connector lines
ExpandSymbol	The expand / collapse indicator on containers
Root	The root node
Node	Container / leaf entries
ChildsCount	The extra-info column rendered next to each node (ExtraInfo)

---

Recoloring a region

Use the fluent Styles method. A Style is a foreground color, a background color, and an Overflow strategy — there is no bold/italic/underline. A bare Color is accepted as shorthand for a foreground-only style.

using ConsolePlusLibrary;
using PromptPlusLibrary;

PromptPlus.Controls
    .TreeSelect<Node>("Nodes")
    .Root(company)
    .TextSelector(n => n.Name)
    .ExtraInfo(n => n.Info)
    .DefaultMatchBy((a, b) => a.Id == b.Id)
    .Styles(TreeSelectStyles.Prompt,      new Style(Color.Yellow,  Color.Black))
    .Styles(TreeSelectStyles.Root,        new Style(Color.Magenta, Color.Black))
    .Styles(TreeSelectStyles.Node,        new Style(Color.Cyan,    Color.Black))
    .Styles(TreeSelectStyles.ChildsCount, new Style(Color.Gray,    Color.Black))
    .Styles(TreeSelectStyles.Selected,    new Style(Color.Black,   Color.Gray))
    .Run();

To reuse a theme across trees, wrap the styling in a helper you call for each control — the library does not broadcast styles for you. See Global Styles for the pattern.

---

Contrast enforcement

PromptPlus nudges foreground colors that fall below the configured contrast ratio so text stays readable on any terminal theme. Tune or disable with PromptPlus.Config.ContrastRatio.

---

See also

• Global Styles — the Style type, per-control styling, contrast
• ConsolePlus → Styles & Overflow — full Style API and Overflow
• Visual Symbols — the focus arrow and expand markers these styles color
• Methods → Styles
• TreeMultiSelect → Styles — the multiple-choice sibling

This site is open source. Improve this page.