System.Data.ProviderBase.FieldNameLookup.IndexOfName C# (CSharp) Method

        public int IndexOfName(string fieldName)
        {
            if (null == _fieldNameLookup)
            {
                GenerateLookup();
            }
            // via case sensitive search, first match with lowest ordinal matches
            object value = _fieldNameLookup[fieldName];
            return ((null != value) ? (int)value : -1);
        }