Gets or sets the minimum number of columns into which item links in this BarItemMenuHeader are split. This is a dependency property.
An Int32 value that is the minimum number of columns into which item links in this BarItemMenuHeader are split.
The MinColCount property works only for BarItemMenuHeaders whose BarItemLinkMenuHeader.ItemsOrientation is set to Horizontal. Vertically oriented menu headers display their links in one single column and the MinColCount property always equals 1.