I have a problem assinging External column value to ListItem object with client object model-based application I'm developing. To be precise, I am able to retrieve data related to external content type by reading external list created from this content type but I don't know how to properly use it to assign value to this field. By doing some research on my own I concluded that BDC ID column from external list is the way to go since it uniquely defines selected row from external list but that doesn't tell me much since I don't know what to do with it. Currently I ended up with partial solution - to assign plain string value of picker column but that makes this value visible only in "View Properties" option on Sharepoint and not in "Edit Properties" which pritty much makes sence since it isn't properly related to rest of the data in specific row. Does someone have a better solution for this?
Igor S.
