Forum Discussion

Helper II

8 years ago

Refer to a parameter for Comma-Separated Values data source

Hi Everyone, I cannot find a way to refer a parameter to the file path parts. Is there any way to do this? Or Power BI Desktop Developer has oversight of this.

Microsoft Employee

8 years ago

Have you tried the Advance Editor and adding a parameter directly to the M code?

ngadiez
Helper II
8 years ago
Phil_Seamark

How to add in Parameter in the Advance Editor? I have tried to put just the name of the parameter but it failed.

Thanks
- Phil_Seamark
  Microsoft Employee
  8 years ago
  I created a parameter in the Query Editor. I called it myParameter and set it to TEXT with a value of c:\temp\a.csv
  
  I then edited the M code via the Advanced Editor and made the change in red. Note all text is case sensitive
  
  let Source = Csv.Document(File.Contents(myParameter),[Delimiter=",", Encoding=1252]) in Source
  I could then change the value for the parameter in the query editor to say, c:\temp\b.csv and when I refresh I see the contents of the new file.
  
  Does that help? I can send a sample PBIX file if you like.
  - ngadiez
    Helper II
    8 years ago
    Phil_Seamark
    
    Thank you so much for your help.
    
    I have done my parameter ValuationDate and it is a number.
    IT is the current month in the form of YYMM. Y stands for year, M stands for month.
    
    Every month there will be new file in the folder with something like Report_1710.csv
    
    I have tried
    Source = Csv.Document(File.Contents("C:\Report_" & Number.ToText(ValuationDate) & ".CSV"),[Delimiter=",", Columns=76, Encoding=1252, QuoteStyle=QuoteStyle.None])
    
    but it is still failed.
    
    Thank you so much again for your help.

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