C1Binding objects use the C1CalcEngine class to parse and evaluate expressions. The syntax supported is similar to the one used in Microsoft Excel®.
You can use all the usual logical operators (=, >, <,.<>, >=, <=), arithmetic (+, -, *, /, ^), and you can group expressions using parentheses. For example:
"1+2*3 < (1+2)*3" returns TRUE (7 < 9).
Any public properties in the binding source object can be used in expressions as well. For example:
"Price * 8.5%" returns the value of the Price property times 0.085.
Properties that return collections or dictionaries are also supported. For example, assuming the DataContext object has a Children property:
"Children(Children.Count-1).Name" returns the name of the last child.
Finally, the C1CalcEngine supports a subset of the functions available in Excel. See C1Binding Expression Syntax Elements for a list of these functions.