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WS using OCX/Excel - "Callback functions are not allowed"
RnR
Member Posts: 21
Hi,
My webservice is calling a codeunit. Within this codeunit there is a lot of calculations and one of them needs to use the PMT function (Pmt(interest_rate,number_payments,PV,FV,Type)).
I've tried to access this function through an OCX (finsamp) and through Excel automation, and both of them gives med the following error message:
"Callback functions are not allowed"
I've read about Automation here: http://msdn.microsoft.com/en-us/library/ee909565.aspx
Do I really have to create a .Net component which can calculate the pmt and install that on the server? No other way to accomplish this task?
Cheers
Rnr
My webservice is calling a codeunit. Within this codeunit there is a lot of calculations and one of them needs to use the PMT function (Pmt(interest_rate,number_payments,PV,FV,Type)).
I've tried to access this function through an OCX (finsamp) and through Excel automation, and both of them gives med the following error message:
"Callback functions are not allowed"
I've read about Automation here: http://msdn.microsoft.com/en-us/library/ee909565.aspx
Do I really have to create a .Net component which can calculate the pmt and install that on the server? No other way to accomplish this task?
Cheers
Rnr
0
Comments
Tried to call the calculation within the COM, but same message:Callback functions are not allowed
Have tried all ClassInterfaceTypes in cs, called the inteface instead of the class ++. Same error message.
I would be very happy if somebody can point me in the right direction here
I guess the problem is that the automation is requesting the UI, because Excel automations starts Excel.
Check out this link: http://msdn.microsoft.com/en-us/library/dd301080.aspx