Cursovaia/Avalonia.UI/Views/NewView.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="Avalonia.UI.Views.NewView">
    
    <DockPanel>
        <StackPanel DockPanel.Dock="Top">
            <TextBox Text="{Binding SearchText}" Watermark="" />
            <ProgressBar IsIndeterminate="True" IsVisible="{Binding IsBusy}" />
        </StackPanel>
        <Button Command="{Binding BMCommand}" Content="Check" DockPanel.Dock="Bottom" HorizontalAlignment="Center" />
        <ListBox Items="{Binding SearchResults}" SelectedItem="{Binding SelectedSomething}" Background="Transparent" Margin="0 20" />
    </DockPanel>
</UserControl>