Hello Danko

Thank you for the fast reply. But that is not the Poblem. The gallery works fine in the application the only thing is that i want to disable the Up and Down button. I should look like a combox (only 1 button on the left side witch opens the drop down list)

Hello Alti,

Basically the buttons visiblity is based on the "ShowPreviewInRibbon" property of the PopUpGalleryTool, and if you set it to False the buttons wouldn't be visible anymore. If you would like to keep the preview Area as well you could use a CreationFilter to remove the scroll buttons and extend the drop down button in the whole area.

This is not a recommended apporach but I have achieve it using the code below:

    class RemovingScrollPreviewButtons : IUIElementCreationFilter
    {
        public void AfterCreateChildElements(UIElement parent)
        {
            GalleryPreviewScrollUpButtonUIElement buttonUP;
            GalleryPreviewScrollDownButtonUIElement buttonDOWN;
            GalleryPreviewDropDownButtonUIElement buttonDROP;

            GalleryPreviewButtonAreaUIElement el = parent as GalleryPreviewButtonAreaUIElement;
            if (el != null)
            {
                buttonUP = (GalleryPreviewScrollUpButtonUIElement)parent.GetDescendant(typeof(GalleryPreviewScrollUpButtonUIElement)) as GalleryPreviewScrollUpButtonUIElement;
                buttonUP.Rect = new System.Drawing.Rectangle(buttonUP.Rect.X, buttonUP.Rect.Y, 0, 0);
                buttonDOWN = (GalleryPreviewScrollDownButtonUIElement)parent.GetDescendant(typeof(GalleryPreviewScrollDownButtonUIElement)) as GalleryPreviewScrollDownButtonUIElement;
                buttonDOWN.Rect = new System.Drawing.Rectangle(buttonDOWN.Rect.X, buttonDOWN.Rect.Y, 0, 0);
              
                buttonDROP = (GalleryPreviewDropDownButtonUIElement)parent.GetDescendant(typeof(GalleryPreviewDropDownButtonUIElement)) as GalleryPreviewDropDownButtonUIElement;
                buttonDROP.Rect = el.Rect;
           }
        }

        public bool BeforeCreateChildElements(UIElement parent)
        {
            return false;
        }
    }

After that you should just add an instance of your class to the Creation Filter property of the UltraToolbarsManager like:

ultraToolbarsManager1.CreationFilter = new RemovingScrollPreviewButtons();

Please let me know if this is not what you are looking for.

hi ,

     Thanks it works