BD_empresa/MainWindow.xaml

<Window x:Class="BD_empresa.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:BD_empresa"
        mc:Ignorable="d"
        Loaded="Window_Loaded"
        Title="Pesquisar Unidades" Height="650" Width="800">
    <Grid>

        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        <Grid Margin="10" Grid.Row="0" Grid.Column="0">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto" />
                <ColumnDefinition Width="Auto" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="Auto" />
            </Grid.ColumnDefinitions>
            <Image Source="/marca.png" 
               Grid.Row="0" Grid.Column="0"
               HorizontalAlignment="Left" 
               VerticalAlignment="Top" 
               Margin="10" 
               Height="50"
               RenderOptions.BitmapScalingMode="HighQuality" />
            <TextBlock Text="Pesquisar Empresa:" Margin="0,0,10,0" VerticalAlignment="Center" Grid.Column="1"/>
            <Button Content="Recarregar dados do BD"
                    Margin="10"
                    Grid.Column="3"
                    Command="{Binding RefreshCommand}"
                    VerticalAlignment="Center" />
            <TextBox 
                     x:Name="txtEmpresaSearch" 
                     Margin="0,0,10,0"
                     VerticalAlignment="Center"
                     Grid.Column="2"
                     Text="{Binding SearchEmpresaText, UpdateSourceTrigger=PropertyChanged}" />
        </Grid>
        <TextBlock Text="{Binding ErrorMessage}"
                   Foreground="Red"
                   Margin="10,5,10,0"
                   Grid.Row="1"
                   Visibility="{Binding ErrorMessage, Converter={StaticResource StringToVisibilityConverter}}" />
        <Grid Grid.Row="2">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto" />
                <RowDefinition Height="*" />
            </Grid.RowDefinitions>
            <TextBlock Text="Empresas:" Margin="10,0,10,0" FontWeight="Bold" Grid.Row="0"/>
            <ListView ItemsSource="{Binding Clientes}" Height="213" Margin="10" SelectedItem="{Binding SelectedCliente, Mode=TwoWay}" Grid.Row="1">
                <ListView.View>
                    <GridView>
                        <GridViewColumn Header="Gestão" DisplayMemberBinding="{Binding Gestao}" Width="70" />
                        <GridViewColumn Header="Cliente" DisplayMemberBinding="{Binding Cliente}" Width="400" />
                    </GridView>
                </ListView.View>
            </ListView>
            <Grid Visibility="{Binding IsLoading, Converter={StaticResource BoolToVisibilityConverter}}"
                  Background="#80FFFFFF">
                <ProgressBar IsIndeterminate="True" Height="30" Width="200" VerticalAlignment="Center" HorizontalAlignment="Center" />
            </Grid>
        </Grid>
        <Grid Grid.Row="3">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto" />
                <RowDefinition Height="Auto" />
                <RowDefinition Height="*" />
            </Grid.RowDefinitions>
            <Grid Margin="10" Grid.Row="0" Grid.Column="0">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto" />
                    <ColumnDefinition Width="Auto" />
                    <ColumnDefinition Width="*" />
                </Grid.ColumnDefinitions>
                <TextBlock Text="Pesquisar Unidade:" Margin="0,0,10,0" Grid.Row="1"/>
                <TextBox x:Name="txtUnidadeSearch"
                     Margin="0,0,10,0"
                     VerticalAlignment="Center"
                     Grid.Column="2"
                     Text="{Binding SearchUnidadeText, UpdateSourceTrigger=PropertyChanged}" />
            </Grid>
            <TextBlock Text="Unidades da empresa selecionada (Duplo-clique para abrir pasta):" Margin="10,0,10,0" FontWeight="Bold" Grid.Row="1"/>
            <ListView ItemsSource="{Binding UnidadesSelecionadas}" Margin="10" Grid.Row="2"
                      x:Name="UnidadesListView"
                      PreviewMouseLeftButtonDown="UnidadesListView_PreviewMouseLeftButtonDown"
                      PreviewMouseRightButtonDown="UnidadesListView_PreviewMouseRightButtonDown">
                <ListView.InputBindings>
                    <KeyBinding Key="C" Modifiers="Control" Command="ApplicationCommands.Copy"/>
                </ListView.InputBindings>
                <ListView.CommandBindings>
                    <CommandBinding Command="ApplicationCommands.Copy" Executed="CopyCommand_Executed"/>
                </ListView.CommandBindings>
                <ListView.ContextMenu>
                    <ContextMenu>
                        <MenuItem Header="Copiar coluna" Click="CopyMenu_Click"/>
                    </ContextMenu>
                </ListView.ContextMenu>
                <ListView.View>
                    <GridView>
                        <GridViewColumn Header="Unidade" DisplayMemberBinding="{Binding Unidade}" Width="200" />
                        <GridViewColumn Header="Instalação" DisplayMemberBinding="{Binding Codigo_Instalacao}" Width="120" />
                        <GridViewColumn Header="CNPJ" DisplayMemberBinding="{Binding CNPJ_CPF}" Width="120" />
                        <GridViewColumn Header="Razão Social" DisplayMemberBinding="{Binding Razao_Social}" Width="Auto" />
                    </GridView>
                </ListView.View>
                <ListView.ItemContainerStyle>
                    <Style TargetType="ListViewItem">
                        <EventSetter Event="MouseDoubleClick" Handler="UnidadeListView_MouseDoubleClick" />
                        <EventSetter Event="KeyDown" Handler="UnidadeListView_EnterKeyDown" />
                    </Style>
                </ListView.ItemContainerStyle>
            </ListView>
        </Grid>
    </Grid>
</Window>