Table

private readonly Table<Mod> _mods;

_mods = new Table<Mod>(options.Keymap)
{
    Columns =
    [
        new() { Header = () => Loc(LocString.Name), Cell = mod => mod.Name,
                Sort = (first, second) => string.CompareOrdinal(first.Name, second.Name) },
        new() { Header = () => Loc(LocString.Author), Cell = mod => mod.Author, Width = 12 },
        new() { Header = () => Loc(LocString.Files), Cell = mod => mod.Files.ToString(),
                Width = 6, AlignRight = true,
                Sort = (first, second) => first.Files.CompareTo(second.Files) },
    ],
    ItemStyle = mod => mod.Enabled ? Theme.Default : Theme.Secondary,
    Rows = catalog,
};

Widgets are built in the view's constructor, so options is the ArlecchinoOptions the container hands it, and region is the region the view draws the widget into.

Columns

TableColumn<T> is the shape of one column:

Member	Meaning
Header	Func<string>, so the heading follows the language
Cell	Turns a row into the text of this column
Width	Fixed width in cells; 0 takes an equal share of what is left after the fixed ones
AlignRight	Pads on the left instead of the right
Sort	A comparison; a column without one is never sorted

Sorting

SortBy(column) sorts by that column and flips the direction when called again — the header of the sorted column shows ↑ or ↓. Columns without a Sort comparison are never sorted, so SortBy on them does nothing.

That makes a sort a view command rather than a key buried in Handle:

public IReadOnlyList<ViewCommand> Commands() =>
[
    ViewCommand.For(ConsoleKey.M, () => Loc(LocString.SortByName), () => _mods.SortBy(0)),
    ViewCommand.For(ConsoleKey.N, () => Loc(LocString.SortByFiles), () => _mods.SortBy(2)),
];

Everything else comes from the list

Rows, movement, clicks, activation, the focused and unfocused cursor styles and the scroll bar come from the ListBox inside, so everything on that page applies here.

A worked example

Each panel of Arlecchino.Commander is a sortable table of one folder, colored by what each row is — a folder, a marked file, a hidden one:

dotnet run --project src/Arlecchino.Commander -- --frame 132x26 --left . --right src

See Showcase.