DSIK_FILEZILLA/sikFtpClient/MainWindow.xaml

<Window x:Class="sikFtpClient.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        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"
        xmlns:local="clr-namespace:sikFtpClient"
        xmlns:vm="clr-namespace:sikFtpClient.ViewModel"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Window.DataContext>
        <vm:MainViewModel/>
    </Window.DataContext>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
            <RowDefinition Height="5*"/>
        </Grid.RowDefinitions>
        <Button Command="{Binding ShowUploadCommand}" Content="Upload"/>
        <ContentControl Grid.Row="1" Content="{Binding ViewModel}" />
    </Grid>
</Window>