Parameter Variable Handling in own Function Types

Question

Hi experts,
I've implemented a customer function type using a separate ABAP class. The function type has got several parameters that should be filled in a command that is defined on a WebTemplate button group. Planning functions that use this type are working fine by setting the parameter in the WebTemplate statical (using a string). But if the parameter is bind to a BEx variable or are DataProvider selection nothing will be given to the function type. Investigation in the SAP ABAP code gave me the information, that in case of variables the SAP code will return only empty values, although the code itself has got the technical id of the corresponding variable.
So my question is, how to give own function types implementation the current navigation state of WebTemplates, e.g. using the DataProvider selection or the state of BEx variables?
Anyone here with interesting and helpful hints?

Answer 1

Timo,
When you stated that parameter readings in your function returns nothing when using variables i assumed that binding is not happening because in the case of binding with variables not only the definition of the binding is important but also the settings of the variables in the metadata (input ready, mandatory etc.),also i assumed that your button is not showing the variable screen and in this case with mandatory variables when no value is bound to the variable then the popup screen appears any way and the function is stopped .
Hope this helps.
Regards,
Eitan.