TapeCatalog/MainWindow.xaml

<Window x:Class="TapeCatalog.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:TapeCatalog"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <TabControl>
            <TabItem Header="SRC-ARC">
                <Grid Background="#FFE5E5E5">
                    <TextBox x:Name="SourceTextBox" HorizontalAlignment="Left" Margin="0,19,0,0" TextWrapping="Wrap" Text="Source Directory" VerticalAlignment="Top" Width="507" Height="20"/>
                    <TextBox x:Name="ArchiveTextBox" HorizontalAlignment="Left" Height="20" Margin="0,56,0,0" TextWrapping="Wrap" Text="Archive Directory" VerticalAlignment="Top" Width="507"/>
                    <Button x:Name="SourceSelect" Content="Select Directory" HorizontalAlignment="Left" Margin="512,19,0,0" VerticalAlignment="Top" Height="20" Click="SET_RES_DIR"/>
                    <Button x:Name="ArchiveSelect" Content="Select Directory" HorizontalAlignment="Left" Margin="512,56,0,0" VerticalAlignment="Top" Height="20" Click="SET_ARC_DIR"/>
                    <Button Content="Scan Source" HorizontalAlignment="Left" Height="22" Margin="700,146,0,0" VerticalAlignment="Top" Width="76" Click="SCAN_RES_DIR" RenderTransformOrigin="2.316,5.185" Grid.Column="1"/>
                    <Button Content="Scan Archive" HorizontalAlignment="Left" Height="22" Margin="700,168,0,0" VerticalAlignment="Top" Width="76" Click="SCAN_ARC_DIR" Grid.Column="1"/>
                    <Button Content="Clear List" HorizontalAlignment="Left" Height="22" Margin="700,190,0,0" VerticalAlignment="Top" Width="76" Click="CLEAR_FILES" Grid.Column="1"/>
                    <Button Content="Verify Sizes" HorizontalAlignment="Left" Height="22" Margin="700,212,0,0" VerticalAlignment="Top" Width="76" Click="VERIFY_SIZES" Grid.Column="1"/>
                    <Button Content="Export XML" HorizontalAlignment="Left" Height="22" Margin="700,234,0,0" VerticalAlignment="Top" Width="76" Click="EXPORT_LIST" Grid.Column="1"/>
                    <Button Content="Import XML" HorizontalAlignment="Left" Height="22" Margin="700,256,0,0" VerticalAlignment="Top" Width="76" Click="IMPORT_LIST" Grid.Column="1"/>
                    <Button Content="-> TapeCat" HorizontalAlignment="Left" Height="22" Margin="700,278,0,0" VerticalAlignment="Top" Width="76" Click="COPY_TO_TAPECATALOG" Grid.Column="1"/>
                    <ListView x:Name="FilesListView" Margin="10,146,101,10" Grid.ColumnSpan="2">
                        <ListView.View>
                            <GridView>
                                <GridViewColumn Header="Filename" DisplayMemberBinding="{Binding Filename}" Width="300"/>
                                <GridViewColumn Header="File Dir" DisplayMemberBinding="{Binding FileDir}" Width="300"/>
                                <GridViewColumn Header="Size SRC (MB)" DisplayMemberBinding="{Binding SizeSrc}" Width="100"/>
                                <GridViewColumn Header="Size ARC (MB)" DisplayMemberBinding="{Binding SizeArc}" Width="100"/>
                                <GridViewColumn Header="Status" DisplayMemberBinding="{Binding Status}" Width="60"/>
                                <GridViewColumn Header="Archive Drive" DisplayMemberBinding="{Binding ArcDrive}" Width="140"/>
                                <GridViewColumn Header="Mod SRC" DisplayMemberBinding="{Binding ModSrc}" Width="140"/>
                                <GridViewColumn Header="Mod ARC" DisplayMemberBinding="{Binding ModArc}" Width="140"/>
                            </GridView>
                        </ListView.View>
                    </ListView>
                    <TextBlock TextWrapping="Wrap" Text="Source Directory:" Margin="0,0,697,387"/>
                    <TextBlock TextWrapping="Wrap" Text="Archive Directory:" Margin="0,37,697,350"/>
                </Grid>
            </TabItem>
            <TabItem Header="Tapecatalog">
                <Grid Background="#FFE5E5E5">
                    <ComboBox x:Name="MediumComboBox" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Width="200" Grid.ColumnSpan="2"/>
                    <Button Content="Refresh Mediums" HorizontalAlignment="Left" Height="22" Margin="218,10,0,0" VerticalAlignment="Top" Width="120" Click="REFRESH_MEDIUMS"/>
                    <Button Content="Copy from SRC-ARC" HorizontalAlignment="Left" Height="22" Margin="343,10,0,0" VerticalAlignment="Top" Width="120" Click="COPY_FROM_SRCARC"/>
                    <ListView x:Name="TapeCatalogListView" Margin="10,44,10,40" Grid.ColumnSpan="2">
                        <ListView.View>
                            <GridView>
                                <GridViewColumn Header="Medium" DisplayMemberBinding="{Binding Medium}" Width="150"/>
                                <GridViewColumn Header="Dateiname" DisplayMemberBinding="{Binding Filename}" Width="400"/>
                                <GridViewColumn Header="Änderungsdatum" DisplayMemberBinding="{Binding Modified}" Width="200"/>
                            </GridView>
                        </ListView.View>
                    </ListView>
                    <Button Content="Export Medium" HorizontalAlignment="Left" Height="22" Margin="468,0,0,374" VerticalAlignment="Bottom" Width="120" Click="EXPORT_MEDIUM"/>
                </Grid>
            </TabItem>
        </TabControl>

    </Grid>
</Window>