MainWindow.xaml

<Window x:Class="AutoRename.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:autoRename="clr-namespace:AutoRename"
        Icon="icon.ico" FontSize="13" AllowDrop="True"
		Width="640" Height="400" MinWidth="480" MinHeight="300"
        Loaded="Window_Loaded" Closed="Window_Closed" DragEnter="Window_DragEnter" Drop="Window_Drop">

    <Window.Resources>
        <autoRename:ShowGridLinesConverter x:Key="ShowGridLinesConverter" />
    </Window.Resources>

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="66" />
            <RowDefinition Height="*" />
            <RowDefinition Height="50" />
        </Grid.RowDefinitions>

        <ToolBarTray Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="0,0,0,0">
            <ToolBar HorizontalAlignment="Stretch" VerticalAlignment="Top" Margin="0,0,0,0" ToolBarTray.IsLocked="True" >

                <Button Command="{Binding AddFileButtonClick}" Margin="0,0,0,-1" Height="53" Width="95" >
                    <TextBlock Text="Add file" FontSize="14" TextAlignment="Center"/>
                </Button>

                <GridSplitter Width="4" IsEnabled="False" Background="#210080FF"/>

                <Button Command="{Binding WebsiteButtonClick}" Margin="0,0,0,-1" Height="53" Width="95" >
                    <TextBlock Text="{Binding WebsiteButton}" FontSize="14" TextAlignment="Center"/>
                </Button>

                <GridSplitter Width="4" IsEnabled="False" Background="#210080FF"/>

                <StackPanel Orientation="Vertical" Margin="5,2,0,0">
                    <CheckBox Content="Words start with upper case" IsChecked="{Binding Path=StartWithUpperCase, Mode=TwoWay}" Margin="10,2,10,1"/>
                    <CheckBox Content="Remove text in brackets" IsChecked="{Binding Path=RemoveBrackets, Mode=TwoWay}" Margin="10,2,10,1"/>
                    <CheckBox Content="Remove starting number" IsChecked="{Binding Path=RemoveStartingNumber, Mode=TwoWay}" Margin="10,2,10,1"/>
                </StackPanel>

                <StackPanel Orientation="Vertical" Margin="5,2,0,0">
                    <CheckBox Content="Show file extension" IsChecked="{Binding Path=ShowExtension, Mode=TwoWay}" Margin="10,2,10,1"/>
                    <CheckBox Content="Show full path" IsChecked="{Binding Path=ShowFullPath, Mode=TwoWay}" Margin="10,2,10,1"/>
                    <CheckBox Content="Show grid lines" IsChecked="{Binding Path=ShowGridLines, Mode=TwoWay}" Margin="10,2,10,1"/>
                </StackPanel>

                <StackPanel Orientation="Vertical" Margin="5,2,0,0">
                    <CheckBox Content="Exit after renaming" IsChecked="{Binding Path=ExitAfterRename, Mode=TwoWay}" Margin="10,2,10,1"/>
                </StackPanel>

            </ToolBar>
        </ToolBarTray>

        <DataGrid Grid.Row="1" ItemsSource="{Binding Path=DataGridRows, Mode=TwoWay}" SelectedItem="{Binding Path=SelectedItem, Mode=TwoWay}"
                  GridLinesVisibility="{Binding ShowGridLines, Converter={StaticResource ShowGridLinesConverter}}"
                  AutoGenerateColumns="False" SelectionMode="Single" SelectionUnit="FullRow" HorizontalScrollBarVisibility="Disabled"
                  Background="{x:Null}" CanUserAddRows="False" CanUserDeleteRows="True" CanUserResizeRows="False"
                  CanUserReorderColumns="False" CanUserResizeColumns="True" CanUserSortColumns="False">

            <DataGrid.Resources>
                <Style TargetType="{x:Type DataGridCell}">
                    <Setter Property="FontSize" Value="14"></Setter>
                    <Style.Triggers>
                        <!--<Trigger Property="IsMouseOver" Value="true"> https://stackoverflow.com/a/3702183/2576489
                            <Setter Property="Background" Value="LightGray"/>
                        </Trigger>-->
                        <Trigger Property="IsSelected" Value="true">
                            <Setter Property="Foreground" Value="White" />
                            <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
                            <Setter Property="BorderBrush" Value="Black" />
                        </Trigger>
                        <DataTrigger Binding="{Binding Path=State}" Value="{x:Static autoRename:RowState.Error}">
                            <Setter Property="Background" Value="Red" />
                        </DataTrigger>
                    </Style.Triggers>
                </Style>
            </DataGrid.Resources>

            <DataGrid.Columns>
                <DataGridTextColumn Header="Current name" Width="*" Binding="{Binding Path=OldViewPath}" IsReadOnly="True"></DataGridTextColumn>
                <DataGridTextColumn Header="New name" Width="*" Binding="{Binding Path=NewViewPath, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></DataGridTextColumn>
			</DataGrid.Columns>

			<DataGrid.ContextMenu>
				<ContextMenu Name="Menu">
                    <MenuItem Visibility="{Binding RowSettingsEnabled}" Header="Words start with upper case" IsCheckable="True" IsChecked="{Binding SelectedItem.StartWithUpperCase, Mode=TwoWay}"/>
                    <MenuItem Visibility="{Binding RowSettingsEnabled}" Header="Remove text in brackets" IsCheckable="True" IsChecked="{Binding SelectedItem.RemoveBrackets, Mode=TwoWay}"/>
                    <MenuItem Visibility="{Binding RowSettingsEnabled}" Header="Remove starting number" IsCheckable="True" IsChecked="{Binding SelectedItem.RemoveStartingNumber, Mode=TwoWay}"/>
                    <Separator Visibility="{Binding RowSettingsEnabled}" />
                    <MenuItem Visibility="{Binding RowSettingsEnabled}" Header="Show file extension" IsCheckable="True"  IsChecked="{Binding SelectedItem.ShowExtension, Mode=TwoWay}"/>
                    <MenuItem Visibility="{Binding RowSettingsEnabled}" Header="Show full path" IsCheckable="True" IsChecked="{Binding SelectedItem.ShowFullPath, Mode=TwoWay}"/>
				    <Separator Visibility="{Binding RowSettingsEnabled}" />
                    <MenuItem Visibility="{Binding RowSettingsEnabled}" Header="Remove" Command="{Binding RemoveSelectedCommand}"/>
                    <MenuItem IsEnabled="{Binding ContextMenuEnabled}" Header="Clear all" Command="{Binding RemoveAllCommand}"/>
                </ContextMenu>
            </DataGrid.ContextMenu>

        </DataGrid>

		<Button Grid.Row="2" Content="Rename" FontSize="16" FontWeight="SemiBold" Command="{Binding RenameButtonClick}" IsEnabled="{Binding RenameButtonEnabled}" />

    </Grid>
</Window>