System.Data.Common.DbCommandBuilder.ParameterNames.GetAdjustedParameterNameMaxLength C# (CSharp) Метод

            private int GetAdjustedParameterNameMaxLength()
            {
                int maxPrefixLength = Math.Max(
                    (null != _isNullPrefix ? _isNullPrefix.Length : 0),
                    (null != _originalPrefix ? _originalPrefix.Length : 0)
                    ) + _dbCommandBuilder.GetParameterName("").Length;
                return _dbCommandBuilder.ParameterNameMaxLength - maxPrefixLength;
            }