prs/prs.server/Forms/LogSearcher/LogSearcher.xaml

<Window x:Class="PRSServer.LogSearcher"
        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:PRSServer"
        mc:Ignorable="d"
        Title="Log Searcher" Height="800" Width="1200">
     <Window.DataContext><local:logsearcherViewModel x:Name="ViewModel"/></Window.DataContext>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="3*"/>
            <ColumnDefinition Width="4*"/>
            <ColumnDefinition Width="Auto"/>
            <ColumnDefinition Width="Auto"/>
        </Grid.ColumnDefinitions>
        
        <TextBox Grid.Row="0" Grid.Column="0" Padding="2" Text="Keyword" BorderThickness="0" />
        <TextBox Grid.Row="0" Grid.Column="5" Padding="2" Text="Lines Before/After" BorderThickness="0" />
        
        <TextBox Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" x:Name="keywordBox" Text="{Binding SearchString}" Padding="2" TextBox.Margin="2" Background="LightYellow"/>
        <Button Grid.Row="1" Grid.Column="2" Content="Search" x:Name="searchButton" Command="{Binding SearchCommand}" Padding="2" Button.Margin="2"/>
        <TextBox Grid.Row="1" Grid.Column="3" Text="{Binding LineBuffer}" x:Name="LineBuffer" Padding="2" TextBox.Margin="2" Background="LightYellow"/>
        
        <ListBox ItemsSource="{Binding Output}" x:Name="outputBox" Grid.Row="2" Padding="2" ListBox.Margin="2" >
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <TextBlock Text="{Binding LineData}" Grid.Column="0" />
                        <TextBlock Text="{Binding Path=DisplayData}" Grid.Column="1">
                            <TextBlock.InputBindings>
                                <MouseBinding Command="{Binding OpenFileCommand}" MouseAction="LeftClick" />
                            </TextBlock.InputBindings>
                        </TextBlock>
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>   
        <ListBox ItemsSource="{Binding FileInfo}" x:Name="ViewerList" Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="3" Padding="2" ListBox.Margin="2" />
    </Grid>
</Window>