CheckListWindow.xaml

<rtf:ManagedWindow x:Class="TankIconMaker.CheckListWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:rtf="clr-namespace:RT.Util.Forms;assembly=RT.Util"
        xmlns:src="clr-namespace:TankIconMaker"
        x:ClassModifier="internal"
        Title="Tank Icon Maker" ShowInTaskbar="False"
        Height="415" Width="607" MinHeight="200" MinWidth="260"
        TextOptions.TextFormattingMode="Display"
        Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"
        Icon="/TankIconMaker;component/Resources/Graphics/icon.ico">
    <Window.Resources>
        <ScaleTransform x:Key="UiZoomer" CenterX="0" CenterY="0" ScaleX="1" ScaleY="1" />
    </Window.Resources>
    <Grid LayoutTransform="{StaticResource UiZoomer}">
        <Grid.RowDefinitions>
            <RowDefinition Height="auto"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="auto"/>
        </Grid.RowDefinitions>

        <TextBlock Grid.Row="0" Margin="10" Padding="0" Name="ctPrompt" TextWrapping="Wrap">
            Placeholder
        </TextBlock>

        <DataGrid Grid.Row="1" GridLinesVisibility="None" AutoGenerateColumns="False" Height="Auto" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Name="ctGrid" Width="Auto"
                  HeadersVisibility="Column" CanUserAddRows="False" CanUserDeleteRows="False" Background="White" Margin="10,0">
            <DataGrid.Resources>
                <Style TargetType="{x:Type DataGridCell}">
                    <Setter Property="FontWeight" Value="Normal"/>
                    <Style.Triggers>
                        <DataTrigger Binding="{Binding IsChecked}" Value="True">
                            <Setter Property="FontWeight" Value="Bold"/>
                        </DataTrigger>
                    </Style.Triggers>
                </Style>
            </DataGrid.Resources>

            <DataGrid.Columns>
                <DataGridTemplateColumn IsReadOnly="False" MinWidth="35">
                    <DataGridTemplateColumn.Header>
                        <CheckBox Name="chkSelectAll"/>
                    </DataGridTemplateColumn.Header>
                    <DataGridTemplateColumn.HeaderStyle>
                        <Style TargetType="DataGridColumnHeader">
                            <Setter Property="HorizontalContentAlignment" Value="Center" />
                            <Setter Property="VerticalContentAlignment" Value="Center" />
                        </Style>
                    </DataGridTemplateColumn.HeaderStyle>
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <CheckBox IsChecked="{Binding IsChecked, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" Checked="checkedChanged" Unchecked="checkedChanged"/>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                    <DataGridTemplateColumn.CellStyle>
                        <Style TargetType="DataGridCell">
                            <Style.Resources>
                                <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Transparent" />
                            </Style.Resources>
                            <Setter Property="HorizontalAlignment" Value="Center" />
                            <Setter Property="VerticalAlignment" Value="Center" />
                        </Style>
                    </DataGridTemplateColumn.CellStyle>
                </DataGridTemplateColumn>
                <DataGridTextColumn Binding="{Binding Column1}" Header="Name" Width="*" IsReadOnly="True" />
                <DataGridTextColumn Binding="{Binding Column2}" Header="Name" Width="*" IsReadOnly="True" Visibility="Collapsed" />
            </DataGrid.Columns>
        </DataGrid>

        <WrapPanel Grid.Row="2" HorizontalAlignment="Right" VerticalAlignment="Bottom" Margin="10">
            <Button Margin="8,0,0,0" IsDefault="True" Click="ok">
                <AccessText Margin="16,2" Name="ctOkBtn">_OK</AccessText>
            </Button>
            <Button Margin="8,0,0,0" IsCancel="True">
                <AccessText Margin="16,2" Name="ctCancelBtn">_Cancel</AccessText>
            </Button>
        </WrapPanel>
    </Grid>
</rtf:ManagedWindow>