Parameters are responsive in Report Builder preview, width gets adjusted based one the maximum length of the text values. But it is not the case in Power BI service. It doesn't show the full-text value. I tried adjusting the page size, no luck.
The issue has been reported before internally: CRI 183228902. This is by design. If you hove over the dropdown you'll see the tooltip on the full text:
Best Regards,Qiuyun Yu
Thanks for the information, @v-qiuyu-msft
It is an essential feature to have in reporting tools. At the moment, we don't see any option to adjust the width of the parameters. Is there any plan in the pipeline regarding this issue/feature?
I'm afraid there is no plan about changing parameter dropdown box width based on https://docs.microsoft.com/en-us/power-platform-release-plan/2019wave2/business-intelligence/planned...
For your requirement, please post an idea here: https://ideas.powerbi.com/forums/265200-power-bi-ideas