docs-desktop/dotnet-desktop-guide/net/wpf/events/snippets/how-to-add-an-event-handler-using-code/csharp/MainWindow.xaml

<Window x:Class="CodeSampleCsharp.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="How to add an event handler using code" Height="100" Width="300">

    <!--<ButtonCreatedByXaml>-->
    <StackPanel Name="StackPanel1">
        <Button
            Name="ButtonCreatedByXaml" 
            Click="ButtonCreatedByXaml_Click"
            Content="Create a new button with an event handler"
            Background="LightGray">
        </Button>
    </StackPanel>
    <!--</ButtonCreatedByXaml>-->
</Window>