Hi
hope these steps would help you resolve this
–use a READ CSV FILE activity and pass the csv filepath as input and get the output with a variable of type datatable named dt
–now use a INVOKE METHOD activity and mention target object as dt.Columns.Add(“Fullname”)
and inthe method mention as SetOrdinal
and in the parameter property mention as 0
–then use a FOR EACH ROW activity and mention the input as dt and inside the loop use a assign activity liket his row(“Fullname”) = row(“first-name”).tostring+" "+row(“last-name”).Tostring
–next to this FOR EACH ROW use remove datacolumn activity and mention the columnname as “first-name”
again another one activity with column name as “last-name”
–now use a WRITE CSV file activity and pass the variable dt as input
I used Add Data Column Activity and then as @Palaniyappan guided used the code row(“Fullname”) = row(“first-name”).tostring+" "+row(“last-name”).Tostring