Seems prety clear to me, as I have the same problem :

How to bind the Visibility property of a NodeLayout (in a XamDataTree), to a property of the underlying data ?

Thanks for the solution Fabien, it works :)

Hello Fabien,

Thank you for your feedback. I am glad that you resolved your issue and I believe that other community members may benefit from this as well.

Thanks again.

Ok, here's the solution I found :

Add a property in data class MyDataClass :

public bool IsVisible { get; set; }

Add ref to igPrimitives at the top of xaml :

xmlns:igPrim="http://schemas.infragistics.com/xaml/primitives"

Create a dynamic style :

<UserControl.Resources>
    <igPrim:BoolToVisibilityConverter x:Key="BoolToVisibility"/>
    <Style TargetType="{x:Type ig:XamDataTreeNodeControl}" x:Key="NodeStyle">
        <Setter Property="Visibility" Value="{Binding Node.Data.IsVisible, Converter={StaticResource BoolToVisibility}}" />
    </Style>
</UserControl.Resources>

Add style to every NodeLayout :

<ig:NodeLayout TargetTypeName="MyDataClass" DisplayMemberPath="Name" Key="DataNode" NodeStyle="{StaticResource NodeStyle}">
...
</ig:NodeLayout>

Every node checks the property IsVisible of the data an apply it to Visibility :-)

Hello Fabien,

I am requesting sample project, becasue I cannot be completely sure how your Data is organized and where the Property which you want to bind the Layout's Visibility to is defined and to which object it belongs.