Metadata not available before invoke

[Former Member]

Hi,

I had been testing out NCO 3.0 and was excited about the new metadata methods.

My test environment is as follow:

1. Visual Studio 2010

2. NCO 3.0 64-bit

3. NetFramework 4.0

4. SAP ECC 7.02

My sample .Net VB code to create RFC function is as follow:

Dim rfcGetProdOrder As IRfcFunction = ECC_Destination.Repository.CreateFunction("BAPI_PRODORD_GET_DETAIL")

Immediately, I try to obtain the metadata for TABLE

dim myTable as IRFCTable = rfcGetProdOrder.GetTable("Operation")
Dim myElementMetadata As RfcElementMetadata
myElementMetadata = myTable.GetElementMetadata(0) ' Get the first metadata from the table, supposed to be for first field of table.

It will return null or error .

However, if I first invoke the RFC, then I will get the metadata for table OPERATION.

There is no issue with metadata for structure.

Any idea where I had done wrong, or, is it possible to obtain the metadata for table without invoking the RFC?

Thanks!

[Former Member · Accepted solution]

Hi , in order to query table structure you can read metadata from table without invoking .

1. Dim myElementMetadata As RfcStructureMetadata
2. myElementMetadata = myTable.Metadata.LineType

at this point you'll have structure metadata and you can query it or even create new line by using method "CreateStructure".

Yarden Jacobson.

[Former Member · Accepted solution]

Thanks for that. Had tried it out and it has the data I needed.

The next problem I face is the name of table.

In SE37, the TABLE tab has something like this:

RETURNCODE              LIKE          BAPI_RETURNCODE

The metadata.linetype.name returns "BAPI_RETURNCODE".

I want to obtain "RETURNCODE" instead. Been combing all metadata but don't seem to locate it.

Appreciate if you can help on this.

Thanks!

[MarkusTolksdorf · Accepted solution]

Hello Ronald,

the name RETURNCODE is only associated with the table within your function module. For the type itself, the table metadata does not really have a name for an instance of the table type BAPI_RETURNCODE. Only when using it for an instance of the table a name will be associated. In your function module the name is RETURNCODE, in some other function module it might be RETCODE. Hence, you need to get the name for a table from the enclosing RfcFunctionMetadata, which is referring to the table metadata.

Best regards,

Markus

[former_member236869]

Hi to everybody,

I followed the posts to do the same things of Ronald and the code works well.

Now I need to get the value from a field into the RfcStructureMetadata table, but I don't know how.

I'm able getting all the name fields, but their values I don't know how.

Is there anybody who can help me pls?

thank's

Best regards.

Celeghin Denis

[MarkusTolksdorf]

Hello Celeghin,

strange you are called Romano. The question you ask is not really clear - perhaps you provide an example what you want to achieve. Furthermore, you should open a new question - you could refer to this thread, but what you want to know should be described as a new question.

Best regards,

Markus