Hi,
I've tried a simple CheckComboBox and it fails as well.
According to NuGet, the Extended WPF Toolkit version is 2.5.
I created a new WPF application, got Toolkit through Nuet, added the single line CheckComboBox you proposed and it works just fine.
I have not tried any other VS version.
Yes, the Package loads and the rest of the extension works just fine. But as soon as this user control is shown, an exception appears on the XAML designer.
I've tried a simple CheckComboBox and it fails as well.
According to NuGet, the Extended WPF Toolkit version is 2.5.
I created a new WPF application, got Toolkit through Nuet, added the single line CheckComboBox you proposed and it works just fine.
I have not tried any other VS version.
Yes, the Package loads and the rest of the extension works just fine. But as soon as this user control is shown, an exception appears on the XAML designer.