<Expander dxlc:DockLayoutControl.Dock="Top" IsExpanded="True" ExpandDirection="Down" Name="expender"   >

            <Expander.Header>

                <dxlc:LayoutGroup Orientation="Horizontal"

                                  Visibility="{Binding IsExpanded,

                    RelativeSource={RelativeSource AncestorType={x:Type Expander},

                    Mode=FindAncestor},   Converter={StaticResource BoolToVisibilityConverter}}">

                    <dxlc:LayoutItem Label="{DynamicResource ResourceKey=ResPatientEncounterId}">

                        <TextBlock  Text="{Binding ElementName=tbEncounterId, Path=Text}"

                                    TextWrapping="Wrap" FontSize="15" FontWeight="Bold"></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem  Label="{StaticResource ResourceKey=ResPatientName}">

                        <TextBlock  MinWidth="200" Text="{Binding ElementName=tbPatientName, Path=Text}"

                                    TextWrapping="Wrap" FontSize="15" FontWeight="Bold"></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem >

                        <TextBlock Name="tbAgeAndGender"

                                   TextWrapping="Wrap" FontSize="15" FontWeight="Bold"></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem Label="{DynamicResource ResourceKey=ResMRN}">

                        <TextBlock  Text="{Binding ElementName=tbMRN, Path=Text}"

                                   TextWrapping="Wrap" FontSize="15" FontWeight="Bold"></TextBlock>

                    </dxlc:LayoutItem>

                </dxlc:LayoutGroup>

            </Expander.Header>

            <dxlc:LayoutControl Orientation="Vertical" >

                <dxlc:LayoutGroup Orientation="Horizontal">

                    <dxlc:LayoutItem Label="{DynamicResource ResourceKey=ResPatientEncounterId}">

                        <TextBlock Name="tbEncounterId"   ></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem  Label="{StaticResource ResourceKey=ResPatientName}">

                        <TextBlock Name="tbPatientName" MinWidth="200" TextWrapping="Wrap" ></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem Name="liDateOfBirth" Label="{DynamicResource ResourceKey=ResDateOfBirthG}">

                        <TextBlock Name="tbDOB" TextWrapping="Wrap" ></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem Label="{DynamicResource ResourceKey=ResAge}" Name="liAge">

                        <TextBlock Name="tbAge"  ></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem Label="{DynamicResource ResourceKey=ResGender}" Name="liGender">

                        <TextBlock Name="tbGender" ></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem Label="{DynamicResource ResourceKey=ResMRN}">

                        <TextBlock Name="tbMRN" ></TextBlock>

                    </dxlc:LayoutItem>

                </dxlc:LayoutGroup>

                <dxlc:LayoutGroup Orientation="Horizontal">

                    <dxlc:LayoutItem Label="{DynamicResource ResourceKey=ResAppointmentDoctor}">

                        <TextBlock Name="tbAttending"></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem Label="{DynamicResource ResAllergies}">

                        <TextBlock Name="tbAllergies"></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem Label="{DynamicResource ResAdvancedDirective}">

                        <TextBlock Name="tbAdavncedDirctive"></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem Label="{DynamicResource ResWt}">

                        <TextBlock Name="tbWt"></TextBlock>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem Label="{DynamicResource ResResport}">

                        <TextBlock Name="tbReport"/>

                    </dxlc:LayoutItem>

                    <dxlc:LayoutItem >

                    </dxlc:LayoutItem>

                </dxlc:LayoutGroup>

            </dxlc:LayoutControl>

        </Expander>

 public class BoolToVisibilityConverter : IValueConverter

    {

        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)

        {

            if ((bool)value)

                return Visibility.Collapsed;

            return Visibility.Visible;

        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)

        {

            if ((Visibility)value == Visibility.Visible)

                return false;

            return true;

        }

        #endregion

    }