SSRS 中作为颜色表达式的 Switch 语句

Question

I´m stuck on a color expression using a switch command.

I want to be able to set the color green if the following is true.

=Switch( Fields!direction.Value = "North" and (Fields!transport.Value = "Car" and Fields!units.Value >= 1) and (Fields!transport.Value = "Bike" and Fields!units.Value >= 2), "Green", 
        1=1, "Red"
)

Is it possible to use that many "and" in a switch statement? Is there a better way to write this code, maybe to include a iif statement?

Answer 1

You need to explain the conditions and the desired results to get a real answer but this might help you understand where the problem is..

Assuming you want to test if

1. Direction is north
2.a. transport is car and units is >= 1
2.a. transport is bike and units is >= 2
and then return "Green", other wise return "Red"

Then the change is quite simple

=Switch( 
        Fields!direction.Value = "North" 
            and (
                    (Fields!transport.Value = "Car" and Fields!units.Value >= 1) 
                    OR
                    (Fields!transport.Value = "Bike" and Fields!units.Value >= 2)
            ), "Green", 
        True, "Red"
)

All I did here was to make the transport/units check a single test with two conditions, if either ( OR ) is true then that part is True I Also replace the 1=1 with True but 1=1 will work the same, they both return True