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  • Properties
  • Expand Direction
  • Example
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  1. Essentials
  2. Controls
  3. Content Controls

Expander

Last updated 15 days ago

Inherits from

The expander allows you to display two stacked views. A header view and then a content view. When the Expander is collapsed, the content is hidden. When expanded, it's shown. And then when tapping on the header it will toggle the state of the Expander.

Before shell v6, animations were used to show and hide content. However, properties related to animations will no longer work in shell v6 and later.

Properties

Property
Type
Description

Content

The content that will be displayed when expanded. This is the default property so it can be omitted when creating child elements.

ContentTemplate

This will also provide content to be displayed but it doesn't create the views until they are needed. If your expanded content is rather heavy you might consider using this to improve initial page load performance.

Header

The view that will make up the header of the expander. This is what will respond to tap events.

IsExpanded

bool

Allows you to set the initial state of the expander. Defaults to false.

Direction

Which direction the expander will expand in. Defaults to Down.

ExpandAnimationLength

int

The duration of the expand animation in milliseconds. Defaults to 250.

CollapseAnimationLength

int

The duration of the collapse animation in milliseconds. Defaults to 250.

ExpandAnimationEasing

The easing function to use when performing the animation. Defaults to Linear.

CollapseAnimationEasing

The easing function to use when performing the animation. Defaults to Linear.

Expand Direction

Value

Description

Down

Expands down below the header.

Up

Expands up above the header.

Left

Expands to the left of the header.

Right

Expands to the right of the header.

Example

<Rock:Expander>
    <Rock:Expander.Header>
        <Label Text="Tap for details" />
    </Rock:Expander.Header>
    <StackLayout>
        <Label Text="Some details about this event." />
        <Button Text="Register" StyleClass="btn btn-primary" />
    </StackLayout>
</Rock:Expander>

🧱
View
DataTemplate
View
Easing
Easing
ExpandDirection
Microsoft.Maui.Controls.ContentView