Forum Discussion

bahadur's avatar
bahadur
New Member
8 years ago

changing a parameter value in a query step

I have created a PowerBI template that takes two (text) parameters.  Upon opening the template the parameters are prompted for by the system and entered by the user.  This works as required.  As the various other queries in the template are executed, is it possible to include as a step in one of these queries a command to modify one of the parameter values so that futher processing can use the new value for the parameter?

 

Additionally:

 

- is it possible to delete a parameter in a query step?

- is it possible to create a parameter in a query step?

 

 

2 Replies

  • Anonymous's avatar
    Anonymous
    Not applicable

    Unfortunately no.  Parameters are defined once and then are unchanged throughout the execution of queries at runtime.

    • MarcelBeug's avatar
      MarcelBeug
      Community Champion

      I have some difficulties understanding what you are trying to do and what you mean with a "template".

       

      Anyhow, if you have a parameter defined in Power Query like:

       

      Then you can perfectly have query code (or a function parameter) with the same name "Parameter1" and another value, like:

       

      let
          Source = #table(1,{{1}}),
          Parameter1 = "John",
          Custom1 = Parameter1
      in
          Custom1

      Actually, when reading multiple files from a folder, various query objects are automatically created, including a parameter that points to the example file and used in the example query, while the corresponding function has a parameter with the same name, overriding the parameter value that points to the example file.