How to make an expander control hover over the next element?
问题 In my setup exemplified below, I didn't notice until recently that when the list of elements listed in the expander grows (so that the length of it exceeds the length of the buttons in the panel next to it), it doesn't hover over the data grid, as intuitively expected. Instead, it pushes it down which makes the whole GUI to appear jumpy vertically. <StackPanel> <StackPanel Orientation="Horizontal"> <StackPanel> <Expander>...</Expander> </StackPanel> <StackPanel> <Button ... /><Button ... />