shiny-tableview

name: shiny-tableview description: Generate settings-style TableView pages and cells for .NET MAUI using Shiny.Maui.TableView - a pure MAUI implementation with cascading styles, 14 cell types, sections, drag-sort, and full MVVM support auto_invoke: true triggers: - tableview - table view - settings page - settings view - settingsview

Shiny.Maui.TableView Skill

You are an expert in Shiny.Maui.TableView, a pure .NET MAUI settings-style TableView control with 14 cell types, cascading styles, sections, drag-sort reordering, and full MVVM/binding support.

When to Use This Skill

Invoke this skill when the user wants to:

• Create a settings page or preferences UI in .NET MAUI
• Add or configure TableView cells (switch, checkbox, entry, picker, command, etc.)
• Style a TableView with global cascading styles or per-cell overrides
• Use sections with headers, footers, and dynamic ItemTemplate cells
• Enable drag-to-reorder within a section
• Bind cell properties to a ViewModel using MVVM
• Create radio button groups, date/time pickers, number pickers, or multi-select pickers
• Build any form-like or list-based settings UI

Library Overview

Repository: https://github.com/shinyorg/tableview Namespace: Shiny.Maui.TableView XAML Namespace: http://shiny.net/maui/tableview (prefix: tv)

Shiny.Maui.TableView is a pure .NET MAUI implementation inspired by AiForms.Maui.SettingsView. Unlike AiForms which uses native platform renderers (UITableView on iOS, RecyclerView on Android), this library uses only standard MAUI layouts and views with zero platform-specific code.

Setup

1. Install NuGet Package

dotnet add package Shiny.Maui.TableView

2. Configure in MauiProgram.cs

using Shiny.Maui.TableView;

var builder = MauiApp.CreateBuilder();
builder
    .UseMauiApp<App>()
    .UseShinyTableView();

3. Add XAML Namespace

xmlns:tv="http://shiny.net/maui/tableview"

Architecture

The control hierarchy is:

tv:TableView (ContentView > ScrollView > VerticalStackLayout)
  tv:TableRoot
    tv:TableSection (Title, FooterText, cells)
      tv:LabelCell / tv:SwitchCell / tv:CommandCell / etc.

Style cascade: TableView globals -> Section overrides -> Cell overrides. All properties are BindableProperty with full MVVM support.

Cell Types (14 Total)

LabelCell

Displays title with optional value text on the right.

<tv:LabelCell Title="Version" ValueText="1.0.0" Description="Latest release" />

SwitchCell

Toggle switch.

<tv:SwitchCell Title="Wi-Fi" On="{Binding WifiEnabled, Mode=TwoWay}" OnColor="#34C759" />

CheckboxCell

Native checkbox control.

<tv:CheckboxCell Title="Accept Terms" Checked="{Binding Accepted, Mode=TwoWay}" AccentColor="Green" />

SimpleCheckCell

Checkmark toggle (no native checkbox, just a checkmark character).

<tv:SimpleCheckCell Title="Option A" Checked="{Binding OptionA, Mode=TwoWay}" />

RadioCell

Radio button selection. Use RadioCell.SelectedValue attached property on the section.

<tv:TableSection Title="Theme" tv:RadioCell.SelectedValue="{Binding SelectedTheme, Mode=TwoWay}">
    <tv:RadioCell Title="Light" Value="Light" />
    <tv:RadioCell Title="Dark" Value="Dark" />
    <tv:RadioCell Title="System" Value="System" />
</tv:TableSection>

CommandCell

Tappable cell with disclosure arrow. Inherits from LabelCell.

<tv:CommandCell Title="About" ValueText="Learn more"
                 Command="{Binding AboutCommand}"
                 KeepSelectedUntilBack="True" />

ButtonCell

Full-width button-style cell.

<tv:ButtonCell Title="Sign Out" Command="{Binding SignOutCommand}" ButtonTextColor="Red" />

EntryCell

Inline text input.

<tv:EntryCell Title="Email" ValueText="{Binding Email, Mode=TwoWay}"
               Placeholder="user@example.com" Keyboard="Email" />

DatePickerCell

Opens native date picker dialog on tap.

<tv:DatePickerCell Title="Birthday" Date="{Binding BirthDate, Mode=TwoWay}" Format="D" />

TimePickerCell

Opens native time picker dialog on tap.

<tv:TimePickerCell Title="Alarm" Time="{Binding AlarmTime, Mode=TwoWay}" Format="T" />

TextPickerCell

Opens native dropdown/spinner picker on tap.

<tv:TextPickerCell Title="Color" ItemsSource="{Binding Colors}"
                    SelectedIndex="{Binding SelectedColorIndex, Mode=TwoWay}" />

NumberPickerCell

Opens a prompt dialog for numeric input.

<tv:NumberPickerCell Title="Font Size" Number="{Binding FontSize, Mode=TwoWay}"
                      Min="8" Max="72" Unit="pt" />

PickerCell

Full-page picker for single or multi-select. Navigates to a selection page.

<!-- Single select -->
<tv:PickerCell Title="Country" ItemsSource="{Binding Countries}"
                SelectionMode="Single" SelectedItem="{Binding SelectedCountry, Mode=TwoWay}"
                PageTitle="Select Country" />

<!-- Multi select -->
<tv:PickerCell Title="Hobbies" ItemsSource="{Binding Hobbies}"
                SelectionMode="Multiple" MaxSelectedNumber="3"
                SelectedItems="{Binding SelectedHobbies, Mode=TwoWay}" />

CustomCell

Hosts any custom MAUI view.

<tv:CustomCell Title="Progress">
    <tv:CustomCell.CustomContent>
        <ProgressBar Progress="0.75" />
    </tv:CustomCell.CustomContent>
</tv:CustomCell>

Common Cell Properties (CellBase)

All cells inherit these properties:

TableSection Properties

<tv:TableSection Title="GENERAL" FooterText="These settings apply globally"
                  HeaderBackgroundColor="#F2F2F7" HeaderTextColor="#666666"
                  UseDragSort="False">
    <!-- cells -->
</tv:TableSection>

Dynamic Cells with ItemTemplate

Generate cells from a data source:

<tv:TableSection Title="Items" ItemsSource="{Binding Items}">
    <tv:TableSection.ItemTemplate>
        <DataTemplate>
            <tv:LabelCell Title="{Binding Name}" ValueText="{Binding Value}" />
        </DataTemplate>
    </tv:TableSection.ItemTemplate>
</tv:TableSection>

The ItemsSource supports INotifyCollectionChanged for live updates.

Global Styling (TableView Properties)

Apply styles at the TableView level. Individual cell/section properties override globals.

<tv:TableView CellTitleColor="#333333"
              CellTitleFontSize="17"
              CellDescriptionColor="#888888"
              CellValueTextColor="#007AFF"
              CellBackgroundColor="White"
              CellSelectedColor="#EFEFEF"
              CellAccentColor="#007AFF"
              CellIconSize="28"
              HeaderTextColor="#666666"
              HeaderFontSize="13"
              HeaderBackgroundColor="#F2F2F7"
              FooterTextColor="#8E8E93"
              SeparatorColor="#C6C6C8"
              SeparatorPadding="16"
              SectionSeparatorHeight="12">

Cell Global Styles

Header/Footer Global Styles

Separator/Section Styles

Drag & Sort

Enable reorder controls (up/down arrows) on a section:

<tv:TableView ItemDroppedCommand="{Binding ItemDroppedCommand}">
    <tv:TableRoot>
        <tv:TableSection Title="Reorder" UseDragSort="True">
            <tv:LabelCell Title="First" ValueText="1" />
            <tv:LabelCell Title="Second" ValueText="2" />
            <tv:LabelCell Title="Third" ValueText="3" />
        </tv:TableSection>
    </tv:TableRoot>
</tv:TableView>

The ItemDroppedCommand receives ItemDroppedEventArgs with Section, Cell, FromIndex, ToIndex.

Scroll Control

<tv:TableView ScrollToTop="{Binding ShouldScrollTop}" ScrollToBottom="{Binding ShouldScrollBottom}" />

await tableView.ScrollToTopAsync();
await tableView.ScrollToBottomAsync();

Events

Code Generation Instructions

When generating code with Shiny.Maui.TableView:

1. Page Structure

• Always add xmlns:tv="http://shiny.net/maui/tableview" to the page
• Wrap content in tv:TableView > tv:TableRoot > tv:TableSection
• Group related settings into sections with descriptive Title and FooterText

2. Cell Selection

• Use SwitchCell for on/off toggles
• Use CheckboxCell for accept/agree checkboxes
• Use SimpleCheckCell for selection lists (shows/hides checkmark)
• Use RadioCell for mutually exclusive choices within a section
• Use EntryCell for text input
• Use CommandCell for navigation/action items with disclosure arrow
• Use ButtonCell for destructive or primary actions
• Use LabelCell for read-only display
• Use DatePickerCell / TimePickerCell for date/time selection
• Use TextPickerCell for dropdown selection from a list
• Use NumberPickerCell for numeric input with min/max
• Use PickerCell for full-page single or multi-select
• Use CustomCell for any custom MAUI view

3. Binding Patterns

• Always use Mode=TwoWay for editable properties (On, Checked, ValueText, Date, Time, Number, SelectedIndex, SelectedItem, SelectedItems)
• Use Mode=OneWay (default) for display-only properties (Title, Description, ValueText on LabelCell)
• Commands use default Mode=OneWay
• RadioCell selection binds at section level: tv:RadioCell.SelectedValue="{Binding Prop, Mode=TwoWay}"

4. ViewModel Pattern

public class SettingsViewModel : INotifyPropertyChanged
{
    private bool _wifiEnabled = true;
    public bool WifiEnabled
    {
        get => _wifiEnabled;
        set => SetProperty(ref _wifiEnabled, value);
    }

    public ICommand SaveCommand { get; }

    public SettingsViewModel()
    {
        SaveCommand = new Command(async () =>
            await Application.Current!.Windows[0].Page!.DisplayAlertAsync("Saved", "Settings saved.", "OK"));
    }

    public event PropertyChangedEventHandler? PropertyChanged;
    private bool SetProperty<T>(ref T field, T value, [CallerMemberName] string? name = null)
    {
        if (EqualityComparer<T>.Default.Equals(field, value)) return false;
        field = value;
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(name));
        return true;
    }
}

5. Dark Mode

• Do NOT hardcode colors. Leave color properties as null to inherit system defaults.
• Only set explicit colors when the design requires specific brand colors.
• The control respects Application.Current.UserAppTheme automatically.

6. Styling Strategy

• Set global styles on tv:TableView for consistent appearance
• Override at section level for section-specific header/footer styling
• Override at cell level only for individual cell emphasis
• Use CellAccentColor for switches, checkboxes, and radio buttons globally

Complete Example

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:tv="http://shiny.net/maui/tableview"
             x:Class="MyApp.SettingsPage"
             Title="Settings">

    <tv:TableView CellSelectedColor="#E0E0E0" CellAccentColor="#007AFF">
        <tv:TableRoot>
            <tv:TableSection Title="General">
                <tv:SwitchCell Title="Notifications" On="{Binding NotificationsOn, Mode=TwoWay}" />
                <tv:SwitchCell Title="Sound" On="{Binding SoundOn, Mode=TwoWay}" />
                <tv:CheckboxCell Title="Accept Analytics" Checked="{Binding AnalyticsAccepted, Mode=TwoWay}" />
            </tv:TableSection>

            <tv:TableSection Title="Account">
                <tv:EntryCell Title="Name" ValueText="{Binding Name, Mode=TwoWay}" Placeholder="Your name" />
                <tv:EntryCell Title="Email" ValueText="{Binding Email, Mode=TwoWay}" Keyboard="Email" />
                <tv:CommandCell Title="Change Password" Command="{Binding ChangePasswordCommand}" />
            </tv:TableSection>

            <tv:TableSection Title="Theme" tv:RadioCell.SelectedValue="{Binding Theme, Mode=TwoWay}">
                <tv:RadioCell Title="Light" Value="Light" />
                <tv:RadioCell Title="Dark" Value="Dark" />
                <tv:RadioCell Title="System" Value="System" />
            </tv:TableSection>

            <tv:TableSection Title="Preferences">
                <tv:DatePickerCell Title="Birthday" Date="{Binding Birthday, Mode=TwoWay}" Format="D" />
                <tv:TimePickerCell Title="Daily Reminder" Time="{Binding ReminderTime, Mode=TwoWay}" />
                <tv:NumberPickerCell Title="Font Size" Number="{Binding FontSize, Mode=TwoWay}"
                                      Min="10" Max="36" Unit="pt" />
            </tv:TableSection>

            <tv:TableSection Title="About">
                <tv:LabelCell Title="Version" ValueText="1.0.0" />
                <tv:CommandCell Title="Privacy Policy" Command="{Binding PrivacyCommand}" />
                <tv:CommandCell Title="Terms of Service" Command="{Binding TermsCommand}" />
            </tv:TableSection>

            <tv:TableSection Title="Actions">
                <tv:ButtonCell Title="Sign Out" Command="{Binding SignOutCommand}" ButtonTextColor="Red" />
            </tv:TableSection>
        </tv:TableRoot>
    </tv:TableView>
</ContentPage>

Best Practices

1. Group logically - Put related settings in the same section with clear headers
2. Use FooterText - Explain non-obvious settings in section footers
3. Two-way bind editable values - Always Mode=TwoWay for user-editable properties
4. Leave colors null for dark mode - Only set colors when brand-specific styling is needed
5. Use CellAccentColor globally - Set once on TableView instead of per-cell AccentColor
6. Use CommandCell for navigation - With ShowArrow="True" and KeepSelectedUntilBack="True"
7. Use ButtonCell for destructive actions - Red text, centered, at the bottom of the page
8. Use RadioCell for exclusive choices - Bind SelectedValue at the section level
9. Use PickerCell for long lists - Full-page picker is better than inline for more than 4-5 items
10. Use ItemTemplate for dynamic content - Bind ItemsSource on sections for data-driven cells

Reference Files

For detailed templates and examples, see:

• reference/api-reference.md - Full API surface and property tables
• reference/templates.md - Page and cell code generation templates