将IsDbGenerated = true添加到ClientNo属性
[Column(Storage="_ClientNo", DbType="Int NOT NULL", **IsDbGenerated=true,** IsPrimaryKey=true, UpdateCheck=UpdateCheck.Never)] public int ClientNo

将IsDbGenerated = true添加到ClientNo属性
[Column(Storage="_ClientNo", DbType="Int NOT NULL", **IsDbGenerated=true,** IsPrimaryKey=true, UpdateCheck=UpdateCheck.Never)] public int ClientNo