FuncUI
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  • Getting Started
  • View Basics
    • Creating views
    • Lifetime
    • Attributes
    • How to create bindings
  • Components
    • Component basics
    • Component lifetime
    • Hooks
  • Common Questions
  • Controls
    • Button
    • Border
    • Calendar
    • CalendarDatePicker
    • CheckBox
    • DatePicker
    • DockPanel
    • Expander
    • ListBox
    • Menu
    • NativeMenu
    • NumericUpDown
    • ProgressBar
    • RadioButton
    • RepeatButton
    • Slider
    • StackPanel
    • Tabs
    • TextBlock
    • TextBox
    • TimePicker
    • ToggleButton
    • ToggleSwitch
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  1. Controls

Tabs

Last updated 2 years ago

Note: You can check the Avalonia docs for the and if you need more information.

For Avalonia.FuncUI's DSL properties you can check

The offers you a way to present content inside your application, each tab contains a different set of controls.

Set Tabs

let homePageContent = 
    DockPanel.create [ 
        DockPanel.children [
            TextBox.create [ TextBox.text "Home" ]
        ]
    ]
let aboutPageContent = 
    DockPanel.create [ 
        DockPanel.children [
            TextBox.create [ TextBox.text "About" ]
        ]
    ]

let tabs : IView list = [
    TabItem.create [
        TabItem.header "Home"
        TabItem.content homePageContent
    ]
    TabItem.create [
        TabItem.header "About"
        TabItem.content aboutPageContent
    ]
]

TabControl.create [
    TabControl.tabStripPlacement Dock.Left // Change this property to tell the app where to show the tab bar
    TabControl.viewItems tabs
]

Set HostControl as content

// counter.fs
module Counter =
    type State = (* state definition *)
    type Msg = (* message definition *)
    let init = (* init definition *)
    let update state msg = (* update definition *)
    let view state dispatch = (* view definition *)

    // encapsule the Elmish architecture in this Host Control
    type Host() as this =
        inherit HostControl()
        do
            Elmish.Program.mkSimple (fun () -> init) update view
            |> Program.withHost this
            |> Program.run

// Program.fs
let aboutPageContent = 
    DockPanel.create [ 
        DockPanel.children [
            TextBox.create [ TextBox.text "About" ]
        ]
    ]
let tabs : IView list = [
    TabItem.create [
        TabItem.header "Counter"
        // use the ViewBuilder to be able to use the Counter module in a stand alone
        TabItem.content (ViewBuilder.Create<Counter.Host>([]))
    ]
    TabItem.create [
        TabItem.header "About"
        TabItem.content aboutPageContent
    ]
]

TabControl.create [
    TabControl.viewItems tabs
]

In the example above the Counter module defines a HostControl to allow that module to work by itself. This means you don't need to nest every view/control inside the main Elmish module of your app, this can help you reduce boilerplate and complexity in the main module of your application

You can also include individual Elmish Controls as the content of your tabs by using the . Visit the to see it in action

TabControl
TabControl API
TabControl.fs
TabControl
ViewBuilder
example