Expose an event that allows you to cancel the navigation to a folder. For example, if you enter an address in the breadcrumb, click the back button, or select a directory in the navigation tree, then you should be able to cancel the navigation.
This can be done via a new event that have a Cancel property in its arguments, for example.
The naming shown here is not mandatory.
I think it would be really cool to include a search bar in the filter window, as implemented in Excel (Please find attached a screenshot for demonstration). This is a very useful functionality, as there may be too many options to choose from is the filter is added to subject ID, which could result in thousands IDs.
Implement UI for hiding sheet. The sheets can be visible, hidden, or very hidden (could be made visible only from the API). Note: This is already supported on model level (in RadSpreadProcessing).
Add an API to load Dark tiles in the provider.
This mode can be achieved by showing tiles from the Carto Dark tile server.
In the Crystal theme the ScrollBars are narrow and expand their size when the mouse is over. Introduce property that sets the default appearance of ScrollViewer's ScrollBars, similar to the ScrollBarMode property for the Fluent theme, which has the following options for the ScrollBar size:
Currently it's not possible to disable the fill handle feature. Provide API for disabling it.
Workaround: in the attached project.
The control should be customizable so you can place also a content different than an image as in the WPF native splash screen support (https://docs.microsoft.com/en-us/dotnet/framework/wpf/app-development/how-to-add-a-splash-screen-to-a-wpf-application).