ExcelDna System.Windows.Markup.XamlParseException

[Majed Oualha]

I am currently working with an Excel DNA project and have encountered an issue when using DevExpress.

The following exception is being thrown:

System.Windows.Markup.XamlParseException: 'The method or operation is not implemented.'
Exception thrown: 'System.Windows.Markup.XamlParseException' in PresentationFramework.dll

The source code is quite basic; I have just added the dxg:TreeListControl as shown below:

XAML

<Window x:Class="FrontAddin.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:dxg="http://schemas.devexpress.com/winfx/2008/xaml/grid" xmlns:local="clr-namespace:FrontAddin" mc:Ignorable="d" Title="MainWindow" Height="450" Width="800"> <Grid> <dxg:TreeListControl></dxg:TreeListControl> </Grid> </Window>

Could you please provide any insights or solutions to resolve this issue? Your assistance would be greatly appreciated.
Thank you in advance for your help.