How to make blank rows if respective rows identified in data table in C#

[Gani tpt]

I have data table and i have many rows in that data table.

due to some condition i want to make all the columns should blank except first column.

Example table

EmpNo Name Course Country

E101 SAI Physice USA

E102 RAM Chemistry Canada

E!03 SAM English Australia

E104 Ran Maths Canada

i am passing two parameters (EmpNo and Name is the unique file and passing to where condition) to do this process in data table using C#..?

Final Output (after passing two parameters (empNo(E103) and Name (Sam))

EmpNo Name Course Country

E101 SAI Physice USA

E102 RAM Chemistry Canada

E!03

E104 Ran Maths Canada

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