Scale the size of a grid row or column in XAML

Grammar:

1         <grid.rowdefinitions>2             <RowDefinitionHeight="*"/>3             <RowDefinitionHeight= "+"/>4             <RowDefinitionHeight= "* *"/>5             <RowDefinitionHeight= "Auto"/>6         </grid.rowdefinitions>    

* Number is a unit, meaning minus the absolute positioning and the height of auto-positioning, the remaining height is assigned to the line with the * number in the height setting (for example, the first row height is 1/3 of the remaining height and the third row height is 2/3 of the remaining height).

Scale the size of a grid row or column in XAML