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Helper I
Helper I

Using DATEDIFF with "N/A" or Null in Dataset

So I am familiar with the datediff command, but I have some cells in my time columns that are N/A because we did not measure those times. I am trying to use the datediff command to calculate the difference in times between two columns, but I can't do so because not all of the cells in the column have a time in them. How do I get around this?

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Helper I
Helper I

Re: Using DATEDIFF with "N/A" or Null in Dataset

Update:

 

Here is my DAX code:

 

Column = IF('Time Log'[Start Time] = "N/A", "N/A", DATEDIFF('Time Log'[Start Time],'Time Log'[End Time], minute))

 

I am getting the following error: Expressions that yield variant data-type cannot be used to define calculated columns.

 

How do I fix this?

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Super User I
Super User I

Re: Using DATEDIFF with "N/A" or Null in Dataset

"N/A" is text and DATEDIFF returns a number. You need the two return values to agree in type. I would just return null for N/A

 

 

Column = IF('Time Log'[Start Time] = "N/A", BLANK(), DATEDIFF('Time Log'[Start Time],'Time Log'[End Time], minute))





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