Power BI 报表生成器指标公式

Question

I am adding in an indicator to a PBI Report Builder Report. The indicator is based off multiple fields from the dataset so I need to use a formula, to create the three up/down/side arrows. Previously in Crystal Reports this could be implemented using a series of IF statements as follows. The below example is what is required for the down arrow. (the other 2 arrows also have multiple calculations)

        IF (({spScorecard_SLView;1.CATEGORY_ID} = 4) OR 
       ({spScorecard_SLView;1.CATEGORY_ID} = 25)) THEN 
        IF ({spScorecard_SLView;1.PM_3MM_NC_CNT}-{spScorecard_SLView;1.3MM_NC_CNT}) < 
        0 THEN 'Down Arrow'

        ELSE IF (({spScorecard_SLView;1.CATEGORY_ID} = 21) 
        OR({spScorecard_SLView;1.CATEGORY_ID} = 26) OR 
        ({spScorecard_SLView;1.CATEGORY_ID} = 41)) THEN
        IF ({spScorecard_SLView;1.CM_TOTAL_CNT}> 0) AND 
        (({spScorecard_SLView;1.PM_3MM_TOTAL_CNT} = 0) OR 
        ({spScorecard_SLView;1.3MM_TOTAL_CNT} = 0)) AND 
        ({spScorecard_SLView;1.3MM_NC_CNT} > 0) AND 
        (((({spScorecard_SLView;1.3MM_TOTAL_CNT} - {spScorecard_SLView;1.3MM_NC_CNT}) 
        / {spScorecard_SLView;1.3MM_TOTAL_CNT}) * 100) >= 0.00) THEN 'Down Arrow' //

        ELSE IF ((((({spScorecard_SLView;1.3MM_TOTAL_CNT} - 
        {spScorecard_SLView;1.3MM_NC_CNT}) / {spScorecard_SLView;1.3MM_TOTAL_CNT}) * 
        100) -((({spScorecard_SLView;1.PM_3MM_TOTAL_CNT} - 
        {spScorecard_SLView;1.PM_3MM_NC_CNT}) / 
        {spScorecard_SLView;1.PM_3MM_TOTAL_CNT}) * 100))/100) < 0.00 THEN 
        'Down Arrow'

I am stuck as to how to do something similar in PBI Report builder. Should I create a formula in the Value field under Value and States, and then delete any arrow settings under the Indicator States? Can you create a formula using 'Down Arrow' etc in an IIf statement? I can only get indicator data returned when selecting 1 field under Value, but I need multiple fields & conditions.

SSRS Reports are similar to PBI Report builder so if there are any examples using it that may be of help. I am connecting to a SQL Server stored proc to pull back the data.

Thanks Blowers

Answer 1

I would approach it like this...

Set a formula in the Indicator Value so that you return a number that corresponds to the arrow you want to show (eg return 1, 2 or 3)

You can use whatever format you feel comfotable with but I would suggest using the SWITCH() function rather than nested IIF s.

For example this checks two fields and returns one of three values, (this is just a random example to illustrate the point)

=SWITCH(
SUM(Fields!Amount.Value) >5000 AND Fields!Year.Value >2019, 1
, SUM(Fields!Amount.Value) >10000 AND Fields!Year.Value <2019, 2
, True, 3
)

Switch takes pairs of expressions and return values. It returns the value when it hits the first expression that evaluates to True . So this reads...

• If the aggregated Amount is greater than 5000 and the Year >2019 then return 1
• If the aggregated Amount is greater than 10000 and the Year <2019 then return 12
• Else return 3

The final 'True', as it will always return true acts like an ELSE

Anyway, this will return a value of either 1, 2 or 3

Then in the Indicator Properties, just set the range for each indicator to 1, 2 or 3 like this