MainWindow.xaml

<Window x:Class="CompressionApp.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:CompressionApp"
        mc:Ignorable="d"
        Title="MainWindow" Height="550" Width="800">
    <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="1*" />
            <ColumnDefinition Width="1*" />
            <ColumnDefinition Width="1*" /> 
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="1*" />
            <RowDefinition Height="1*" />
            <RowDefinition Height="1*" />
            <RowDefinition Height="1*" />
        </Grid.RowDefinitions>
        <TextBox Name="textBox" Visibility="Hidden" Grid.Column="0" Grid.Row="0" Grid.ColumnSpan="3" Grid.RowSpan="2" Margin="15"
                 Width="740" HorizontalAlignment="Left">The text of the uploaded file</TextBox>
        <Image x:Name="imageSelected" Visibility="Hidden" Grid.Column="0" Grid.Row="0" Grid.ColumnSpan="3" Grid.RowSpan="2" Margin="15"
                 Width="740" HorizontalAlignment="Center"/>
        <Label Grid.Column="0" Grid.Row="2" Margin="20" Grid.ColumnSpan="3" HorizontalAlignment="Left" Name="filePathlbl">file path : </Label>
        <StackPanel Grid.Column="0" Grid.Row="3">
            <StackPanel Orientation="Horizontal" Margin="20,0,20,0">
                <StackPanel>
                    <Label HorizontalAlignment="Left">Size Before the operation : </Label>
                    <Label HorizontalAlignment="Left">Size After the operation : </Label>
                </StackPanel>
                <StackPanel Height="50">
                    <Label HorizontalAlignment="Left" Name="sizeBefore">0 Byte</Label>
                    <Label HorizontalAlignment="Left" Name="sizeAfter">0 Byte</Label>
                </StackPanel>
            </StackPanel>
            <Button Content="Compress Image Using JpegLossy" Margin="23" HorizontalAlignment="Left" BorderThickness="2" Height="30" Width="195"  VerticalAlignment="Top" Click="CompressImageUsingJpegLossy"/>
        </StackPanel>
        <Grid Grid.Column="1" Grid.Row="2" Grid.RowSpan="2" Grid.ColumnSpan="3">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="1*" />
                <ColumnDefinition Width="1*" />
            </Grid.ColumnDefinitions>
            <Border Grid.Column="0" Margin="0,0,20,10" HorizontalAlignment="Right" VerticalAlignment="Bottom"  Background="GhostWhite" BorderBrush="Silver" Width="200" Height="180" BorderThickness="1" CornerRadius="8,8,3,3">
                <StackPanel>
                    <Button Content="Decompress File (.fano)" Margin="15" HorizontalAlignment="Left" BorderThickness="2" Height="30" Width="165"  VerticalAlignment="Top" Click="DecompressTextFile"/>
                    <Button Content="Decompress file (.lzw)" Margin="15" HorizontalAlignment="Left" BorderThickness="2" Height="30" Width="165"  VerticalAlignment="Top" Click="DeCompressImageFile"/>
                    <Button Content="Decompress folder " Margin="15" HorizontalAlignment="Left" BorderThickness="2" Height="30" Width="165"  VerticalAlignment="Top" Click="DeCompressFolder"/>
                </StackPanel>
            </Border>
            <Border Grid.Column="1" Margin="0,0,30,10" HorizontalAlignment="Right" VerticalAlignment="Bottom"  Background="GhostWhite" BorderBrush="Silver" Width="195" Height="180" BorderThickness="1" CornerRadius="8,8,3,3">
                <StackPanel>
                    <Button Content="Compress text file (.txt)" Margin="15" HorizontalAlignment="Left" BorderThickness="2" Height="30" Width="160"  VerticalAlignment="Top" Click="CompressTextFile"/>
                    <Button Content="Compress image file" Margin="15" HorizontalAlignment="Left" BorderThickness="2" Height="30" Width="160"  VerticalAlignment="Top" Click="CompressImageFile"/>
                    <Button Content="Compress folder " Margin="15" HorizontalAlignment="Left" BorderThickness="2" Height="30" Width="160"  VerticalAlignment="Top" Click="CompressFolder"/>
                </StackPanel>
            </Border>
        </Grid>

    </Grid>
</Window>