WPF DatagridRowHeader only show toggle button on certain rows

WPF DatagridRowHeader only show toggle button on certain rows

I have a datagrid. Each row shows an order. Some rows have multiple IDs
for reasons out of my control. For the rows that have multiple IDs I use
the row details to give the user extra information. What I would like to
do is to only show a toggle button for the rows that contain multiple ID's
not for row's where there is only a single ID.
My datagrid is bound to a List of type Order. Each Order has a boolean
field called MultiID which is set to true if a order does have multiple
ID's. It is these rows where I would like the rowheader to have a button.
Please see the code below I currently have. At the moment every row has a
button which I do not want.
Here is my toggle button
<!-- Toogle Button -->
<Style TargetType="ToggleButton" x:Name="rowdetailToggleButton">
<Setter Property="Padding" Value="1" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToggleButton">
<Grid>
<Border x:Name="DGRH_Border"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding
BorderThickness}"
SnapsToDevicePixels="True">
<Border.Background>
<LinearGradientBrush StartPoint="0,0"
EndPoint="1,1">
<GradientStop Offset="0"
Color="LightGray"/>
<GradientStop Offset="1"
Color="WhiteSmoke"/>
</LinearGradientBrush>
</Border.Background>
</Border>
<ContentPresenter x:Name="contentPresenter"
Margin="{TemplateBinding Padding}"
HorizontalAlignment="{TemplateBinding
HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding
VerticalContentAlignment}"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding
ContentTemplate}" />
<Path x:Name="DefaultPath"
VerticalAlignment="Top"
Data="M0,0 14,7 0,14 Z"
Fill="DarkGray"
Stretch="Fill"
Margin="6"/>
<Path x:Name="CheckedPath"
VerticalAlignment="Top"
Data="M0,0 14,0 7,14 Z"
Fill="DarkGray"
Stretch="Fill"
Margin="6"
Visibility="Collapsed" />
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CheckStates">
<VisualState x:Name="Checked">
<Storyboard>
<ObjectAnimationUsingKeyFrames
Duration="0"
Storyboard.TargetName="DefaultPath"
Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame
KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Collapsed</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames
Duration="0"
Storyboard.TargetName="CheckedPath"
Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame
KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames
Storyboard.TargetName="CheckedPath"
Storyboard.TargetProperty="(Path.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame
KeyTime="0:0:0.2"
Value="LightGray" />
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unchecked" />
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Here is my rowheader
<!-- Data Grid row with toggle button -->
<Style x:Key="DG_RowHeader" TargetType="{x:Type DataGridRowHeader}">
<Setter Property="Width" Value="35"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DataGridRowHeader}">
<ToggleButton x:Name="btn"/>
<ControlTemplate.Triggers>
<DataTrigger Value="True">
<DataTrigger.Binding>
<Binding ElementName="btn"
Path="IsChecked"></Binding>
</DataTrigger.Binding>
</DataTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>