How to: Display items in FlowLayoutControl and enable maximization feature

• May 08, 2019

The following example creates a FlowLayoutControl with four GroupBox objects as children. For the GroupBox objects, the Maximize and Minimize elements are enabled via the GroupBox.MaximizeElementVisibility and GroupBox.MinimizeElementVisibility properties. The first group is maximized in XAML by setting the FlowLayoutControl.MaximizedElement property.

The following image shows the result:

View Example

MainWindow.xaml

<Window x:Class="FlowLayoutControl_GroupBox.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:lc="http://schemas.devexpress.com/winfx/2008/xaml/layoutcontrol"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <Style x:Key="myGroupBoxStyle" TargetType="lc:GroupBox">
            <Setter Property="MaximizeElementVisibility" Value="Visible"/>
            <Setter Property="MinimizeElementVisibility" Value="Visible"/>
            <Setter Property="Width" Value="150"/>
        </Style>
    </Window.Resources>

    <Grid x:Name="LayoutRoot" Background="White">
        <lc:FlowLayoutControl Orientation="Vertical" Background="#FFFAFAFA" BreakFlowToFit="True" 
            MaximizedElementPosition="Right" MaximizedElement="{Binding ElementName=groupBox1}">
            <lc:GroupBox x:Name="groupBox1" Header="Group 1" Style="{StaticResource  myGroupBoxStyle}">
                <TextBlock  TextWrapping="Wrap" Text="Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed molestie porttitor congue..."/>
            </lc:GroupBox>
            <lc:GroupBox  Header="Group 2" Style="{StaticResource  myGroupBoxStyle}">
                <TextBlock  TextWrapping="Wrap" Text="Ut sagittis urna et lorem..."/>
            </lc:GroupBox>
            <lc:GroupBox  Header="Group 3" Style="{StaticResource  myGroupBoxStyle}">
                <TextBlock  TextWrapping="Wrap" Text="Nunc diam justo, tempus sit amet..."/>
            </lc:GroupBox>
            <lc:GroupBox  Header="Group 4" Style="{StaticResource  myGroupBoxStyle}">
                <TextBlock  TextWrapping="Wrap" Text="Quisque iaculis, risus ac bibendum ornare..."/>
            </lc:GroupBox>
        </lc:FlowLayoutControl>
    </Grid>
</Window>