If a cell value meets more than one condition, the format defined by the first condition takes precedence. Individual format properties are "merged" during the resolution process; for example, if one format has red borders and another has a red foreground color, a cell value which meets both conditions may be formatted with both red borders and a red foreground color.
This property makes it possible to short-circuit the resolution process, so that no other conditional formats are applied after the first condition evaluates to true.
Using the above example, assume StopIfTrue is set to a value of true on the conditional format with red borders, a second conditional format exists with a red foreground color, and a cell value meets both conditions. Because the StopIfTrue setting prevents additional formats from being evaluated, the cell will not show a red foreground color, whereas with StopIfTrue being set to false, it would show both red borders and a red foreground color.
In addition to preventing subsequent conditions from being evaluated, the order in which conditions are evaluated can be controlled using the Priority property.
Target Platforms: Android 4.4+, iOS 8+
Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+