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