hello,
I have following table in sql and I want to sum FileSize column for particular UserId in asp.net web api core entity framework using Lambda expression or Linq. Filetype of FileSize column is Double and Table is :
PostId UserId FileSize
1 2 1
2 2 3
3 1 1
4 2 2
So I want to calculate Filesize of User Id 2. i.e Total is 6
Thank you