Expander Class

A control offering a ToggleButton that allows to show or hide its Content.

Syntax

Visual Basic
C#

'Declaration
 
<DefaultPropertyAttribute("Content")>
<ContentPropertyAttribute("Content")>
Public Class Expander 
   Inherits ContentControl
   Implements Microsoft.Maui.Controls.IAnimatable, Microsoft.Maui.Controls.IEffectControlProvider, Microsoft.Maui.Controls.IElementController, Microsoft.Maui.Controls.IGestureRecognizers, Microsoft.Maui.Controls.ILayout, Microsoft.Maui.Controls.ILayoutController, Microsoft.Maui.Controls.Internals.IGestureController, Microsoft.Maui.Controls.IViewController, Microsoft.Maui.Controls.IVisualElementController, Microsoft.Maui.HotReload.IHotReloadableView, Microsoft.Maui.IContentView, Microsoft.Maui.IContextFlyoutElement, Microsoft.Maui.ICrossPlatformLayout, Microsoft.Maui.IElement, Microsoft.Maui.IPadding, Microsoft.Maui.IPropertyMapperView, Microsoft.Maui.IReplaceableView, Microsoft.Maui.IToolTipElement, Microsoft.Maui.ITransform, Microsoft.Maui.IView, Microsoft.Maui.IVisualTreeElement

'Usage
 
Dim instance As Expander

[DefaultProperty("Content")]
[ContentProperty("Content")]
public class Expander : ContentControl, Microsoft.Maui.Controls.IAnimatable, Microsoft.Maui.Controls.IEffectControlProvider, Microsoft.Maui.Controls.IElementController, Microsoft.Maui.Controls.IGestureRecognizers, Microsoft.Maui.Controls.ILayout, Microsoft.Maui.Controls.ILayoutController, Microsoft.Maui.Controls.Internals.IGestureController, Microsoft.Maui.Controls.IViewController, Microsoft.Maui.Controls.IVisualElementController, Microsoft.Maui.HotReload.IHotReloadableView, Microsoft.Maui.IContentView, Microsoft.Maui.IContextFlyoutElement, Microsoft.Maui.ICrossPlatformLayout, Microsoft.Maui.IElement, Microsoft.Maui.IPadding, Microsoft.Maui.IPropertyMapperView, Microsoft.Maui.IReplaceableView, Microsoft.Maui.IToolTipElement, Microsoft.Maui.ITransform, Microsoft.Maui.IView, Microsoft.Maui.IVisualTreeElement

Remarks

The Content is visible when the Expander is expanded & hidden when it is collapsed.

However, the Expander's Header is always visible.

Example

The following code would display this control:

XAML

<xctk:Expander WidthRequest="200"
               Direction="Down">
  <xctk:Expander.Header>
    <Label Text="My Expander"
           HorizontalOptions="Center"/>
  </xctk:Expander.Header>
  <xctk:Expander.Content>
    <VerticalStackLayout Background="LightGray">
      <xctk:TextBox Text="First"
                    Margin="15,5"/>
      <xctk:TextBox Text="Second"
                    Margin="15,5"/>
      <xctk:Button Content="Check"
                   Margin="5"
                   HorizontalOptions="Center"/>
    </VerticalStackLayout>  
  </xctk:Expander.Content>
</xctk:Expander>

Inheritance Hierarchy

System.Object
   Microsoft.Maui.Controls.BindableObject
      Microsoft.Maui.Controls.Element
         Microsoft.Maui.Controls.NavigableElement
            Microsoft.Maui.Controls.VisualElement
               Microsoft.Maui.Controls.View
                  Microsoft.Maui.Controls.Compatibility.Layout
                     Microsoft.Maui.Controls.TemplatedView
                        Xceed.Maui.Toolkit.Control
                           Xceed.Maui.Toolkit.ContentControl
                              Xceed.Maui.Toolkit.Expander

Requirements

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

Expander Members
Xceed.Maui.Toolkit Namespace