在SSRS中将负值转换为零

Question

How would I convert a negative value to be zero in SSRS when designing a report?

 Example in preview: -2
 Outcome in preview: 0, but actually mean 0

I am able to select the textbox where the "-2" is and format its properties to display as "0", but the value behind that "0" is still "-2". I need the "0" to actually be a value of "0".

Answer 1

Use expression, eg

=IIF(Fields!YourField.Value < 0, 0, Fields!YourField.Value)

For your specific example:

=IIF(Fields!NetDischarges.Value < Fields!ApptKeptWithin7days.Value, 0, Fields!NetDischarges.Value-Fields!ApptKeptWithin7days.Value)

Answer 2

You can modify your query to return the date difference as a calculated field like so:

SELECT NetDischarges, ApptKeptWithin7days, 
  CASE WHEN NetDischarges < ApptKeptWithin7days THEN 0 ELSE NetDischarges - ApptKeptWithin7days END AS DaysDifference
FROM MyTable

Then use the DaysDifference field in your table.