prs/prs.desktop/Panels/DeliveredOnSite/DeliveredOnSitePanel.xaml

<UserControl x:Class="PRSDesktop.DeliveredOnSitePanel"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:local="clr-namespace:PRSDesktop"
             mc:Ignorable="d"
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>

        <Border Grid.Row="0" CornerRadius="5,5,0,0" BorderBrush="Gray" BorderThickness="1" Background="WhiteSmoke"
                Padding="5">

            <DockPanel HorizontalAlignment="Stretch">
                <Label DockPanel.Dock="Left" Margin="0,0,5,0" Content="Filter" />
                <ComboBox x:Name="View" DockPanel.Dock="Left" Width="120" SelectedIndex="0"
                          SelectionChanged="ViewStyle_SelectionChanged" VerticalContentAlignment="Center">
                    <ComboBox.Items>
                        <ComboBoxItem Content="Today" />
                        <ComboBoxItem Content="Yesterday" />
                        <ComboBoxItem Content="This Week" />
                        <ComboBoxItem Content="Last Week" />
                        <ComboBoxItem Content="This Month" />
                        <ComboBoxItem Content="Last Month" />
                        <ComboBoxItem Content="This Year" />
                        <ComboBoxItem Content="Last Year" />
                        <ComboBoxItem Content="Custom" />
                    </ComboBox.Items>
                </ComboBox>

                <Label DockPanel.Dock="Left" VerticalContentAlignment="Center" Content="From" Margin="20,0,5,0" />
                <DatePicker DockPanel.Dock="Left" x:Name="StartPicker" Width="120" Background="LightYellow"
                            SelectedDateChanged="SelectedDateChanged" VerticalContentAlignment="Center"
                            FirstDayOfWeek="Monday" />
                <Label DockPanel.Dock="Left" VerticalContentAlignment="Center" Content="To" Margin="5,0,5,0" />
                <DatePicker DockPanel.Dock="Left" x:Name="EndPicker" Width="120" Background="LightYellow"
                            SelectedDateChanged="SelectedDateChanged" VerticalContentAlignment="Center"
                            FirstDayOfWeek="Monday" />
                <Label DockPanel.Dock="Left" VerticalContentAlignment="Center" Content="Search" Margin="20,0,5,0" />
                <TextBox DockPanel.Dock="Left" x:Name="Search" HorizontalAlignment="Stretch"
                         VerticalContentAlignment="Center" KeyUp="Search_KeyUp" />
            </DockPanel>

        </Border>

        <local:DeliveredOnSiteGrid Grid.Row="1" Margin="0,2,0,0" x:Name="Items" />

    </Grid>

</UserControl>