MainWindow.xaml

<Window x:Class="ImageCompressor.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:ImageCompressor"
        Name="Main" 
        Title="MainWindow" WindowStyle="None" Margin="0" WindowStartupLocation="CenterScreen" Width="800" Height="400" ResizeMode="NoResize">
    <Window.Background>
        <ImageBrush ImageSource="Images/back.jpg" />
    </Window.Background>

    <DockPanel>
        <StackPanel Orientation="Horizontal" Height="30" HorizontalAlignment="Right" DockPanel.Dock="Top">
            <Button Name="btnClose" Background="Black" Foreground="White" Width="40" Style="{Binding No}" Click="btnClose_Click">X</Button>
        </StackPanel>

        <Canvas DockPanel.Dock="Top">
            <!-- TextBoxes -->
            <TextBox x:Name="txtFolder" Height="30"  Canvas.Left="160" Canvas.Top="79" Width="270"/>
            <TextBox x:Name="txtSizeKb" Height="30" Canvas.Left="535" Text="" Canvas.Top="80" Width="60"/>
            <!-- DataGrids -->
            <DataGrid x:Name="dgAll" Canvas.Left="35" Canvas.Top="180" Height="135" Width="350" AutoGenerateColumns="False" CanUserAddRows="False" IsReadOnly="True">
                <DataGrid.Columns>
                    <DataGridTextColumn Width="1*" Header="File Name" Binding="{Binding FileName}" />
                    <DataGridTextColumn Width="1*" Header="Type" Binding="{Binding Extension}"  />
                    <DataGridTextColumn Width="1*" Header="Size (KB)" Binding="{Binding SizeKb}"  />
                </DataGrid.Columns>
            </DataGrid>
            <DataGrid x:Name="dgCompressable" Canvas.Left="390" Canvas.Top="180" Height="135" Width="350" AutoGenerateColumns="False" CanUserAddRows="False" IsReadOnly="True">
                <DataGrid.Columns>
                    <DataGridTextColumn Width="1*" Header="File Name" Binding="{Binding FileName}" />
                    <DataGridTextColumn Width="1*" Header="Type" Binding="{Binding Extension}"  />
                    <DataGridTextColumn Width="1*" Header="Size (KB)" Binding="{Binding SizeKb}"  />
                </DataGrid.Columns>
            </DataGrid>
            <!-- Buttons -->
            <Button x:Name="btnSelect" Content="Select Folder" Canvas.Left="35" Canvas.Top="79" Height="30" Width="120" Click="btnSelect_Click"/>
            <Button x:Name="btnCompress" Content="Compress" Canvas.Left="620" Canvas.Top="135" Height="30" Width="120" Click="btnCompress_Click"/>
            <Button x:Name="btnFilter"  Content="Filter" Canvas.Left="620" Canvas.Top="80" Height="30" Width="120" Click="btnFilter_Click"/>
            <Label Content="Size Limit (KB)" Canvas.Left="435" Canvas.Top="83"/>
            <!-- Labels -->
            <Label Name="lblImagesCount" Content="" Canvas.Left="165" Canvas.Top="123" Width="125"/>
            <Label Content="Images Found" Canvas.Left="35" Canvas.Top="123" Width="125"/>
            <Label Content="Original Image List" Canvas.Left="35" Canvas.Top="149" Width="140"/>
            <Label Content="Compressed File List" Canvas.Left="390" Canvas.Top="149" Width="148"/>
            <Label x:Name="lblMessage" Content="" Foreground="White" Canvas.Left="35" Canvas.Top="340" Width="350"/>
            <Button x:Name="btnShowCompressed"  Content="Show Compressed Files" Canvas.Left="535" Canvas.Top="330" Height="30" Width="205" Click="btnShowCompressed_Click"/>

        </Canvas>
    </DockPanel>


</Window>