Note: This property is new in the .NET Framework version 2.0.
Gets the number of fields in the OleDbDataReader that are not hidden.
Namespace: System.Data.OleDb Assembly: System.Data (in system.data.dll)
This value is used to determine how many fields in the OleDbDataReader are visible. For example, a SELECT on a partial primary key returns the remaining parts of the key as hidden fields. The hidden fields are always appended behind the visible fields.