How to format result in switch statement?

[michellepace]

Hello,

In the screenshot below I give my user the abolity to compare months either as an actual value or as a %. The problem is that I do not know how to force a percent format should my user select "As Percentage". In the (commented out) dax code below, I have tried to use the format() function but this breaks my entire visualisation. 

Could anyone help me please?

Diff LM = 
SWITCH( TRUE(),
    [Selected Metric] = "By Amount", [Diff. to LM],
    [Selected Metric] = "By Percent", [% Diff to LM],
    // [Selected Metric] = "By Percent", format([% Diff to LM], "Percent"),
[Diff. to LM] )

When I try to format my percentage case, I loose all my values like so:

[harshnathani]

Hi @michellepace ,

You can have a look at this video.

https://www.youtube.com/watch?v=xV8x7OTXIkE

Regards,

Harsh Nathani

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[Anonymous]

Well, the short answer is: You can't do this unless you use the very newest feature that's only available through Tabular Editor called "calculation groups." Your only option right now is to create a new measure, only for display purposes, that will output correctly formatted values. However, the values will be TEXT, not real numbers. Such a measure should only be used in visualizations, not in calculations. For calculations you should use a measure that returns raw numbers.

[Fowmy]

@michellepace 

Your measure seems fine, can you try it on new table visual. Check your Slicer it it returns a single value as expected. 

Diff LM = 
SWITCH( TRUE(),
    [Selected Metric] = "By Amount", [Diff. to LM],
    [Selected Metric] = "By Percent", FORMAT([% Diff to LM], "Percent"),
    [Diff. to LM] 
)

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