true if this Xamarin.Forms.ListView control has uneven rows. Otherwise, false
When the ListView.HasUnevenRows property is true, the ListView.RowHeight property is ignored for each child Xamarin.Forms.Cell element that has a Cell.Height value that is greater than 0, in which case that Xamarin.Forms.Cell element's Cell.Height value is used, instead. If a child element's Cell.Height property is equal to 0, then the ListView.RowHeight value is used for that element.
Setting this property to true does not enable automatic sizing of cells. iOS as a platform must have a size specified ahead of time and due to this restriction you must set Cell.Height.