Group multiple rows into single row using linq

Hi Team,

How to group the multiple rows into single row using Linq.

User Hobby

Bob Football
Bob Golf
Bob Tennis
Sue Sleeping
Sue Drinking

User Hobby

Bob Football, Golf, Tennis
Sue Sleeping, Drinking


Welcome to community

You can refer below post

Mark as solution if this helps



Thanks for your response. Actually i have 20 columns in the data table. please suggest me how to do.

@mentavenkatesh Can you provide us a Sample data of the Excel having 20 Columns, also appreciated if you could show us the Expected Output based on the Input File.