Assets/GenericDataGrid.xaml

<Window x:Class="ADLookups_v2.GenericDataGrid"
        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:ADLookups_v2"
        mc:Ignorable="d"
        Title="Out-GridView" Height="450" Width="800">
    <Window.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="C:\temp\LightTheme.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Window.Resources>
    <Grid Style="{DynamicResource GridBackground}">
        <Grid Margin="5,5,5,5">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="3*"/>
                <ColumnDefinition Width="auto"/>
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="30"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>
            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
                <RadioButton x:Name="SoftwareRadioButton" Content="Software" VerticalAlignment="Center" Margin="0,0,5,0"/>
                <RadioButton x:Name="UpdatesRadioButton" Content="Updates" VerticalAlignment="Center"/>
            </StackPanel>
            <ComboBox x:Name="ComputersComboBox" Grid.Row="0" Grid.Column="1" VerticalAlignment="Center" Margin="5,0,5,0" IsEditable="True"/>
            <Button x:Name="LookupButton" Grid.Row="0" Grid.Column="2" Content="Lookup" VerticalAlignment="Center" Margin="5,0,5,0" Width="127"/>
            <DataGrid Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="4" x:Name="DataGrid" IsReadOnly="True" HeadersVisibility="Column" Margin="0,5,0,0">
                <DataGrid.ContextMenu>
                    <ContextMenu>
                        <MenuItem x:Name="CopyContextMenuItem" Header="Copy to clipboard"/>
                        <MenuItem x:Name="ExportMenuItem" Header="Export to .csv"/>
                    </ContextMenu>
                </DataGrid.ContextMenu>
            </DataGrid>
        </Grid>
    </Grid>
</Window>