How to change WPF Ribbon Menu AuxiliaryPaneContent width

In WPF Ribbon menu, width of AuxiliaryPaneContent (in RibbonApplicationMenu) is not available. How to change its width based on the items present in it?

Solution

There is no direct property to set the Width or Height of AuxiliaryPaneContent. The solution given here may help: AuxilaryPane Size.

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