Expander

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

For Avalonia.FuncUI's DSL properties you can check Expander.fs

The Expander (known as accordion as well) is a control that allows a user to show or hide content to make more room for relevant information or to show detailed information about the current view

Usage

Set Label

Expander.create [
    Expander.header "Check Logs"
    // the Logs property may be an extremely long text that's why we use an expander
    // hide the logs unless you want to see them
    Expander.content (TextBlock.create [ TextBlock.text state.Logs ])
]

Change Expand Direction you can set in which direction the content should flow

Expander.create [
    Expander.groupName "newsletter"
    Expander.content expanderContent
    // ExpandDirection.Up
    // ExpandDirection.Down
    // ExpandDirection.Left
    // ExpandDirection.Right
    Expander.expandDirection ExpandDirection.Up
]

Use Different Transitions

Expander.create [
    Expander.groupName "newsletter"
    Expander.content expanderContent
    // supply an IPageTransition
    // Expander.contentTransition (PageSlide(TimeSpan.FromSeconds(3.5), PageSlide.SlideAxis.Horizontal) :> IPageTransition)
    Expander.contentTransition (CrossFade(TimeSpan.FromSeconds(2.5)) :> IPageTransition)
]

Use Multiple Expanders you can use multiple expanders and open them programatically via their isExpanded property

Expander.create [
    Expander.header "Profile"
    Expander.isExpanded (state.CurrentSection = Sections.Profile)
    Expander.content (TextBlock.create [ TextBlock.text state.Logs ])
    Expander.onIsExpandedChanged(
        (fun isExpanded -> 
            if isExpanded then
            dispatch (SetCurrentSection (Sections.Profile))
        ), OnChangeOf(state.CurrentSection))
]
Expander.create [
    Expander.header "Preferences"
    Expander.isExpanded (state.CurrentSection = Sections.Preferences)
    Expander.content (TextBlock.create [ TextBlock.text state.Logs ])
    Expander.onIsExpandedChanged(
        (fun isExpanded -> 
            if isExpanded then
            dispatch (SetCurrentSection (Sections.Preferences))
        ), OnChangeOf(state.CurrentSection))
]
Expander.create [
    Expander.header "Misc. Information"
    Expander.isExpanded (state.CurrentSection = Sections.Preferences)
    Expander.content (TextBlock.create [ TextBlock.text state.Logs ])
    Expander.onIsExpandedChanged(
        (fun isExpanded -> 
            if isExpanded then
            dispatch (SetCurrentSection (Sections.Preferences))
        ), OnChangeOf(state.CurrentSection))
]