Logical

This content applies to legacy design tools (such as K2 Studio, K2 for Visual Studio, or the Silverlight-based K2 workflow design tool). If you have upgraded from K2 blackpearl 4.7 to K2 Five, these tools may still be available in your environment. These legacy tools may not be available in new installations of K2 Five. These legacy tools may also not be available, supported, or behave as described, in future updates or versions of K2. Please see the legacy component support policy for more information about support for these components.

Logical functions performs a logical operation or comparison on objects and expressions, and return a Boolean value.

An item is selected and then added to the canvas or K2 field part by clicking the Add button or by dragging it to the right place.

Functions Description Example
And Performs an And operation on two Boolean values, returning true if both values are true, false if any value is false. Input Value: True
Input Value: False
Result: False
False Gets the Boolean value of false. Result: False
If Returns one of two values (Boolean condition, True, False) based on a Boolean condition. Nested expressions of 7 or less are allowed. Condition: True
True Value: "Test string 1"
False Value: "Test string 2"
Result: "Test string 1"
No Gets the Boolean value of false. Result: False
Not

The Not function changes false to true and true to false. Returns a true value if the condition evaluates to false and a false value if the condition evaluates to true.

 Condition: True
Result: False
Or Performs an Or operation on two Boolean values, returning true if one of the values is true, false if both values are false. Value: True
Value: False
Result: True
True Gets the Boolean value of true. Result: True
Xor Performs an Exclusive Or operation on two Boolean values, returning true if one and only one of the values is true. Value: True
Value: True
Result: False
Yes Gets the Boolean value of true. Result: True

The true and false value inputs need to return values of the same type. For example, dragging a SmartBox SmartObject delete method into a true value is allowed by the If’s input wizard at design time, however it will not work at runtime because the delete method does not return a value.

The Function wizard content varies according to the selected function: