.. include:: /../getting_started/vars.rst

.. _section-Product-Codegen-700:

RTI Code Generator
******************

C# code generation for optional sequences not supported
=======================================================
*Code Generator* now fails for optional sequences in C#.
Previously, the optional annotation was silently ignored for sequences in C#. 
Now, *Code Generator* will fail if the IDL/XML/XSD file contains an optional 
sequence. 

For example, this IDL will now fail for C#:

.. code-block:: omg-idl

    struct MyStruct {
        @optional
        sequence<long, 5> mySquence; 
    };

This problem is a known issue that will be fixed in a future release. 

For now, the workaround is to use an empty sequence to emulate an unset 
optional. For example, for the following IDL:

.. code-block:: omg-idl

    struct Foo {
        sequence<long, 5> mySquence;
    };

Suppose |CONNEXT| published the following:

.. code-block:: text

    var sample = new Foo();
    sample.mySquence.Add(5);
    writer.Write(sample);
    sample.mySquence.Clear();
    writer.Write(sample);

After clearing the sequence in the fourth line, the fifth line will publish an 
empty sequence, which will emulate an unset optional.

.. MG-108