Just have a look at below examples and you will know what I am talking about.
|Sentence that appears in my mind
public int GetTotalCost(DataTable products)
For each product that is in products
get its price and add it to the total cost.
public int GetTC(DataTable dt)
For each i in range from 0 to dt.Rows.Count – 1 get ith
element of dt.Rows and get its price. Then add the price to tc.
Using OR mapping tools we can even replace DataTable with ProductCollection and DataRow with Product.