<Window x:Class="MyApplication.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:MyApplication"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <StackPanel>
            <Label Name="lableAddress" Content="Label"/>
            <Button Content="Select file to send" Click="Select_Click"/>
            <Button x:Name="send_Button" Content="Send" Click="Send_Click" IsEnabled="False"/>
            <Button Content="Recive" Click="Recive_Click"/>
            <Label Name="lableFileName"/>
            <Label Name="lableSize"/>
            <Label Name="lableFinish"/>

        </StackPanel>
    </Grid>
</Window>