How to collapse and expand the Ribbon Menu?

[jasonzhang-gd]

How to collapse and expand the Ribbon Menu?
like Outlook, we can collapse and expand the menu.

[jasonzhang-gd]

[jasonzhang-gd]

[adriancs2]

This function is not available yet, but here is a workaround:
First, initialize the ribbon with a height:

ribbon1.Height = 150;

Collapse:

foreach (RibbonTab t in ribbon1.Tabs)
{
    foreach (RibbonPanel p in t.Panels)
    {
        p.Visible = false;
    }
}
ribbon1.Height = 50;

Expand:

foreach (RibbonTab t in ribbon1.Tabs)
{
    foreach (RibbonPanel p in t.Panels)
    {
        p.Visible = true;
    }
}
ribbon1.Height = 150;