avalonia-controls-input

Avalonia Input Controls

Overview

Input controls capture user data or trigger actions. All support IsEnabled, IsVisible, and standard styling.

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Button

Property	Type	Notes
Content	object	Any content, including XAML subtrees
Command	ICommand	Bound command; auto-manages IsEnabled
CommandParameter	object	Passed to command
IsDefault	bool	Triggers on Enter
IsCancel	bool	Triggers on Escape
ClickMode	ClickMode	Release (default), Press, Hover

Events: Click

Variants: RepeatButton (fires Click repeatedly while held), ToggleButton (stateful press)

ToggleButton / CheckBox / RadioButton state events: use IsCheckedChanged (works in all versions). The Checked / Unchecked / Indeterminate events were removed in 12.0 — they only exist in 11.x (obsolete there). Or just bind IsChecked.

<!-- Simple command button -->
<Button Content="Save" Command="{Binding SaveCommand}" IsDefault="True"/>

<!-- Button with icon + text -->
<Button Click="OnClick">
    <StackPanel Orientation="Horizontal" Spacing="8">
        <PathIcon Data="M17 3H5c-1.1 0-2 .9-2 2v14l7-3 7 3V5c0-1.1-.9-2-2-2z" Width="16" Height="16"/>
        <TextBlock Text="Save" VerticalAlignment="Center"/>
    </StackPanel>
</Button>

<!-- RepeatButton -->
<RepeatButton Content="+" Command="{Binding IncrementCommand}" Delay="400" Interval="100"/>

<!-- ToggleButton -->
<ToggleButton Content="Bold" IsChecked="{Binding IsBold}"/>

<!-- React to state change (all versions). Checked/Unchecked events: (11.x) only -->
<ToggleButton Content="Bold" IsCheckedChanged="OnBoldChanged"/>

private void OnBoldChanged(object? sender, RoutedEventArgs e)
{
    var isOn = ((ToggleButton)sender!).IsChecked == true;
}

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CheckBox

Property	Type	Notes
IsChecked	bool?	null = indeterminate
IsThreeState	bool	Enables null/indeterminate state
Content	object	Label displayed next to box