Is it possible to do a row/column span in UniformGrid? Using Grid attached properties
Grid.RowSpan
and
Grid.ColumnSpan
doesn't work on UniformGrid.
No. There are no attached properties that will allow you to do that.
You could create a subclass of the UniformGrid and add them but you would have to handle all the arranging of the child controls.
It will be pretty hard to define what should happen to elements that span multiple columns when they have to wrap to the next line.
来源：https://stackoverflow.com/questions/10603452/wpf-is-it-possible-to-do-a-row-column-span-in-uniformgrid