out parameter problem

[mei xiao]

Hi,

In my web service method (written in C#), I have a method like public string
myMethod(out int[] test1, string test1)

but when I use a web client to access this method, I got a run time
exception: System.NullReferenceException: object reference not set to an
instatnce to an object. What could be the problem and how to fix it? Thank
you very much.

-May

[Dino Chiesa [Microsoft]]

if you showed us the code, and the full text of the exception message, we
could tell you where the problem is.

It is probably not related to webservices.

"mei xiao" <mx***@peerdirect.com> wrote in message
news:uO**************@TK2MSFTNGP09.phx.gbl...

Hi,

In my web service method (written in C#), I have a method like public string myMethod(out int[] test1, string test1)

but when I use a web client to access this method, I got a run time
exception: System.NullReferenceException: object reference not set to an
instatnce to an object. What could be the problem and how to fix it? Thank
you very much.

-May

[Da Yong]

Have you tried to put this line in front of the method signature
[WebMethod, System.Web.Services.Protocols.SoapRpcMethod]