How to solve the ref keyword issue in C#(WCF Contracts)?

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i am having [in,out,size_is(Size)] byte compress_page[*] parameter in my idl file. now we are migrating to wcf.

for ex:

see this function in IDL file

  long RMTReadMultiPages([in] File fh,    
                         [in, string] char prj[],     
                         [in] long fileno,     
                         [in] long extno,    
                         [in] long pageStart,   
                         [in,out] long *numPages,   
                         [in] long transferSize,  
                         [out] short *failCode,  
                         [in,out,size_is(Size)] byte compress_page[*]  
                     );

i have to write this function in C#.

My major Problem :

I have tried to host my Wcf service with Entlib 5.0 Validation. When servie operation contracts go for validation they get crash. Whiel investigating, I found that ref keyword in Wcf service's operation giving this problem. E.g.:

Operation contract in service is like:

public void GetData(int ID, string name, ref string location) {};

Now, while validating string location, it gets crash and if I remove ref keyword it works fine.

i tried replacing "ref" with "out" the issue was solved.

But "ref" replacing with "out" means [in, out] was replaced with out.. i am getting some junk values in "compress_page".

 can you please help me out?

asked 50 secs ago

shiva A

1

How to solve the ref keyword issue in C#(WCF Contracts)?