Tell me how to make MediaElement work using the MVVM pattern. I made the VideoPlayer design left only with the help of buttons to control video playback in MediaElement. Tell me how you can do it correctly. I saw what the interface between View and ViewModel of the player is doing or something like that. But completely unable to figure it out.

VideoPlayerControl.xaml

<UserControl x:Class="VideoPlayer.VideoPlayerControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:local="clr-namespace:VideoPlayer" xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity" mc:Ignorable="d" d:DesignHeight="450" d:DesignWidth="800"> <UserControl.DataContext> <local:VideoPlayerVM/> </UserControl.DataContext> <UserControl.Resources> <local:TimeConverter x:Key="converter"/> <Style x:Key="buttonStyle" TargetType="Button"> <Setter Property="Background" Value="Black"></Setter> <Setter Property="FontFamily" Value="Segoe UI Symbol"></Setter> <Setter Property="Foreground" Value="White"></Setter> <Setter Property="Width" Value="Auto"></Setter> <Setter Property="Height" Value="Auto"></Setter> <Setter Property="FontSize" Value="20"></Setter> <Setter Property="Margin" Value="5,5,5,0"></Setter> <Setter Property="Padding" Value="5"></Setter> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Button"> <Border Background="{TemplateBinding Background}" CornerRadius="5"> <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" Margin="{TemplateBinding Padding}"/> </Border> <ControlTemplate.Triggers> <EventTrigger RoutedEvent="Button.MouseEnter"> <BeginStoryboard> <Storyboard> <ColorAnimation To="#9778AB" Storyboard.TargetProperty="(Button.Background).(SolidColorBrush.Color)" Duration="0:0:0.5"></ColorAnimation> </Storyboard> </BeginStoryboard> </EventTrigger> <EventTrigger RoutedEvent="Button.MouseLeave"> <BeginStoryboard> <Storyboard> <ColorAnimation To="Black" Storyboard.TargetProperty="(Button.Background).(SolidColorBrush.Color)" Duration="0:0:0.5"></ColorAnimation> </Storyboard> </BeginStoryboard> </EventTrigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="FirstRepeatButton" TargetType="RepeatButton"> <Setter Property="SnapsToDevicePixels" Value="True"></Setter> <Setter Property="OverridesDefaultStyle" Value="True"></Setter> <Setter Property="IsTabStop" Value="False"></Setter> <Setter Property="Focusable" Value="False"></Setter> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="RepeatButton"> <Border BorderThickness="0" Background="#0E0817" CornerRadius="0,5,5,0" Height="7"></Border> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="SecondRepeatButton" TargetType="RepeatButton"> <Setter Property="SnapsToDevicePixels" Value="True"></Setter> <Setter Property="OverridesDefaultStyle" Value="True"></Setter> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="RepeatButton"> <Border SnapsToDevicePixels="True" CornerRadius="5,0,0,5" Background="#8D72A1" BorderThickness="0" Height="7"></Border> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="SliderThumb" TargetType="Thumb"> <Setter Property="SnapsToDevicePixels" Value="True"></Setter> <Setter Property="OverridesDefaultStyle" Value="True"></Setter> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Thumb"> <Ellipse Height="16" Width="16" Fill="#553064" ClipToBounds="True"></Ellipse> </ControlTemplate> </Setter.Value> </Setter> </Style> <ControlTemplate x:Key="SliderTemplate" TargetType="Slider"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="Auto"></RowDefinition> <RowDefinition Height="Auto" MinHeight="{TemplateBinding MinHeight}"></RowDefinition> <RowDefinition Height="Auto"></RowDefinition> </Grid.RowDefinitions> <Track Grid.Row="1" x:Name="PART_Track"> <Track.DecreaseRepeatButton> <RepeatButton Style="{StaticResource SecondRepeatButton}" Command="Slider.DecreaseLarge" Margin="0,0,-5,0"></RepeatButton> </Track.DecreaseRepeatButton> <Track.IncreaseRepeatButton> <RepeatButton Style="{StaticResource FirstRepeatButton}" Command="Slider.IncreaseLarge" Margin="-5,0,0,0"></RepeatButton> </Track.IncreaseRepeatButton> <Track.Thumb> <Thumb Style="{StaticResource SliderThumb}"></Thumb> </Track.Thumb> </Track> </Grid> </ControlTemplate> <Style x:Key="SliderStyle" TargetType="Slider"> <Setter Property="Focusable" Value="False"></Setter> <Setter Property="SnapsToDevicePixels" Value="True"></Setter> <Setter Property="OverridesDefaultStyle" Value="true" /> <Setter Property="IsMoveToPointEnabled" Value="True"></Setter> <Style.Triggers> <Trigger Property="Orientation" Value="Horizontal"> <Setter Property="MinHeight" Value="21"></Setter> <Setter Property="MinWidth" Value="104" /> <Setter Property="Template" Value="{StaticResource SliderTemplate}" /> </Trigger> </Style.Triggers> </Style> </UserControl.Resources> <Grid> <MediaElement Source="{Binding SourceVideo}"></MediaElement> <StackPanel HorizontalAlignment="Right" VerticalAlignment="Top" Orientation="Horizontal"> <Button Style="{StaticResource buttonStyle}" Content="&#xE147;"></Button> <Button Style="{StaticResource buttonStyle}" Content="&#xE115;" Command="{Binding SettingsCommand}"></Button> <Button Style="{StaticResource buttonStyle}" Content="&#xE10A;"></Button> </StackPanel> <StackPanel Orientation="Vertical" VerticalAlignment="Bottom" HorizontalAlignment="Stretch" Margin="20,0,20,100"> <Slider Style="{StaticResource SliderStyle}" Value="0" Maximum="{Binding VideoDuration}"></Slider> <Grid HorizontalAlignment="Stretch"> <TextBlock Text="{Binding VideoTime, Converter={StaticResource converter}}" HorizontalAlignment="Left"></TextBlock> <TextBlock Text="{Binding VideoDuration, Converter={StaticResource converter}}" HorizontalAlignment="Right"></TextBlock> </Grid> </StackPanel> <StackPanel Orientation="Horizontal" VerticalAlignment="Bottom" HorizontalAlignment="Center" Margin="0,0,0,55"> <Button Style="{StaticResource buttonStyle}" Content="&#xE100;"></Button> <Button Style="{StaticResource buttonStyle}" Content="&#xE102;"></Button><!--E103--> <Button Style="{StaticResource buttonStyle}" Content="&#xE101;"></Button> </StackPanel> </Grid>

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