teachers_mvvm2/Teachers/Views/AddCourseView.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:vm="using:Teachers.ViewModels"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             mc:Ignorable="d" d:DesignWidth="400" d:DesignHeight="225"
             x:Class="Teachers.AddCourseView"
			 x:DataType="vm:AddTeacherViewModel">
	<Grid ColumnDefinitions="*" RowDefinitions="*, *, *">
		<TextBox Classes="tbCourse" Name="tbCourse" Watermark="Название курса" Grid.Column="0" Grid.Row="0" Text="{Binding NewCourse.Name}"></TextBox>
		<TextBox Classes="tbDuration" Name="tbDuration" Watermark="Количество часов" Height="50" Grid.Column="0" Grid.Row="1" Text="{Binding NewCourse.Duration}"></TextBox>
		<Button Classes="bAddCourse" Name="bSaveCourse" Grid.Column="0" Grid.Row="2" Click="bAddCourse">Добавить курс</Button>
	</Grid>
</UserControl>