Need help to write m code

[Anonymous]

i need to write the m code

my requirement is, i need to create parameters for start year and end year, start month and end month,start week and end week, start date and end date.

if user has selected start week and end week, and not selected year, month and date filter. it automatically take current week of the year. if user has selcte june month not slected other parameters it should take current month of year(june, 2022). Please help how to to write the code. 

i have attached scrrenshots which i have created for week. I have start week and end week parameter. and passed parameter to direct query(query). After publishing the report  in service, I can change paramters dynamically. like i need for year and month and date should include all four (year, month, week, date) be there  If i select only start month and end month parameter only and  user havn't selected anything. it should automatically take current year month) . iam not able attach sample file.so i attcahed screenshot.

Kindly help to write accordingly.

@amitchandak 

[lbendlin]

Dynamic M query parameters in Power BI Desktop - Power BI | Microsoft Docs