ERROR OPENING EXCEL FILE THROUGH OFFICE INTEGRATION

Hello Experts,

While using i_oi_spreadsheet  i_oi_container_control i_oi_document_proxy interfaces there is an error. When an excel file is already opened then method

get_spreadsheet_interface of i_oi_document_proxy interface does not import any sheet_interface. That is no excel is opened from program and so set_selection method of I_OI_SPREADSHEET interface gives a dump that "    Access via 'NULL' object reference not possible.  "

I have checked all DEMO programs of Office Integration and all of them gives same error and they do not work if another unsaved excel is opened.

Please help if anyone has some a way out.

Thanks and Regards,

Anshul Gupta