Public Overrides Function GetOrdinal(ByVal name As String) As Integer

public override int GetOrdinal(string name)

The zero-based column ordinal.

GetOrdinal performs a case-sensitive lookup first. If it fails, a second case-insensitive search is made.

GetOrdinal is Japanese kana-width insensitive.

Because ordinal-based lookups are more efficient than named lookups, it is inefficient to call GetOrdinal within a loop. You can save time by calling GetOrdinal once and assigning the results to an integer variable for use within the loop.