Home/ Questions/Q 6666321
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-26T02:48:58+00:00

I have a WCF service, in which one of the method(or operation contract) uses

  • 0

I have a WCF service, in which one of the method(or operation contract) uses a generic list of certain type as a parameter, however when i try to consume this service, and call this particular method i get this error

Cannot convert type 'System.Collections.Generic.List<CA.CCS.sCmd>' to 'CA.CCS.sCmd[]'

I don’t know why an object array is expected instead of a generic list in the consumer code.

I want to send that parameter as generic list only, without any conversions on client or server, since it hampers the service performance.

I have found similar questions on stack overflow, but none solving my problem.

your response, or link to other’s response will be greatly appreciated.

Update :
I get this window when i try to add service reference, can’t find any settings here

enter image description here

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Because you’re still using VS2005, and your proxy generator apparently wants to turn this into an array parameter, you’ll just have to convert your List<T> to a T[] whenever you call this method.

    Since you have a List<T> instance, you can just use its ToArray method (supported since .NET 2.0). So instead of calling SomeMethod(myList), you can do SomeMethod(myList.ToArray()).

    • 0