The constraint value can only be obtained if it was set with one of the SetUpperConstraint methods or a formula was set with one of the SetLowerConstraintFormula methods and the formula equals a constant value, such as =5.
Target Platforms: Android 4.4+, iOS 8+
Development Environments: Visual Studio 2015+, Visual Studio for Mac Preview, Xamarin for Visual Studio 4.2+
TwoConstraintDataValidationRule Class
TwoConstraintDataValidationRule Members
Overload List
SetUpperConstraint(Double) Method
SetUpperConstraint(DateTime) Method
SetUpperConstraint(TimeSpan) Method
SetUpperConstraintFormula(String,String) Method
SetUpperConstraintFormula(String,String,WorkbookFormat,CellReferenceMode,CultureInfo) Method