Can I change the Category Label dynamicly?

[rulai-yinqiang]

I want to insert a table like Office, which means when the mouse hover a dropdown item, will also change the Category Label dynamicly. I tried many ways, the Category Label can not be refreshed.

[harborsiem]

Which ways did you try? How did you detect the mouse hover?
I don't think that your request is possible.
The Ribbon Framework (WindowsRibbon) is different to the ribbon in Office.

[rulai-yinqiang]

In PreviewEvent, I can change the icon of the selected area. But I can not change the Category Label.
If I change the Category Label, it does not refresh.

I tried:

        Dim cat As Object
        iTable.Categories.GetItem(0, cat)
        cat.Label = "3 x 6 Table"

Also tried:

        Dim cat As Object
        cat = iTable.GalleryCategories(0)
        cat.Label = "3 x 6 Table"

But neither work, yhe Category Label does not refresh.

[harborsiem]

Add this after

cat.Label = "3 x 6 Table"
Ribbon.Framework.InvalidateUICommand(iTable.CommandID, RibbonLib.Interop.Invalidations.Property, PropertyKeyRef.From(RibbonProperties.Categories))

to refresh the UI.

I think it will be a good idea to add two new functions for all gallery controls (InvalidateCategories(), InvalidateItemsSource()) in the next version of the ribbon.

[rulai-yinqiang]

It can update the Category label with .InvalidateUICommand

But the whole controls in the category disappeared when update the Category label with .InvalidateUICommand.

[harborsiem]

I think it is not possible what you want to do with the Ribbon Framework. In the office ribbon it seems that there is an additional DropDown control. You can see this when you hover over the items. Here you see many items as selected. That is not possible in Ribbon Framework.

Maybe the disappeared area is a feature or a bug in the Microsoft implementation.