I have a web service hosting a WCF library, which works fine but produced a
strange signature when interacting with vs 2005/2.0 clients. My method takes
3 strings and returns a bool as below.
bool CanRun(string appName, string userName, string function);
However the auto generated proxy in 2005 looks like this
void CanRun(string appName, string userName, string function, out bool
result, out bool resultSpecified );
I unserstand the new result parameter, but what is the resultSpecified
parameter that was created? It looks like it is always the same as the result
parameter, although admittedly I haven't tested this very thouroughly yet?
I'm pushing for WCF in our organization and don't want to get caught not
haveing an explanation of what is occurring here.
Thanks,
Bill 1 2467
That's fine. Thanks for your response.
Have a good day!
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we can improve the support we provide to you. Please
feel free to let my manager know what you think of the level of service
provided. You can send feedback directly to my manager at: ms****@microsof t.com.
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From: =?Utf-8?B?d2R1ZGVr?= <wd****@newsgro up.nospam>
References: <32************ *************** *******@microso ft.com>
<FU************ **@TK2MSFTNGHUB 02.phx.gbl>
Subject: RE: WCF hosted in a webservice
Date: Fri, 11 Apr 2008 07:42:01 -0700
Steven,
Thanks, I don't need to get rid of the parameter, just wanted to
understand what it was so I can explain to the people writing the client
apps
why they got it.
Thanks again.
"Steven Cheng [MSFT]" wrote:
Hi Bill,
As for the additional "xxxSpecifi ed" parameter, I think it is a
webservice
specific behavior for value type parameter/return value. For value type
parameter in webservice, it support marking it as "nullable". However,
since value type always contains a value, the .NET proxy generation will
add an additional parameter for you to indicate whether this value has
been
set or not. You can try replace the "bool" type with another reference
type such as string or a custom class .e .g.
=============== ==
[OperationContra ct]
MyResult CanRunRef(strin g AppName, string Username, string Function);
............... ......
}
[DataContract]
public class MyResult
{
[DataMember]
public bool CanRun;
}
=============== =
Then, the generated proxy method won't have that additional output
parameter. For your scenario, I think you do not quite need to use it if
the return value is always a valid/expected value. For more information
about Nullable types in webservice, here is another form thread mentioned
this:
#Consuming WebService which returns NULL-values http://bytes.com/forum/thread375805.html
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
Delighting our customers is our #1 priority. We welcome your comments and
suggestions about how we can improve the support we provide to you.
Please
feel free to let my manager know what you think of the level of service
provided. You can send feedback directly to my manager at: ms****@microsof t.com.
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--------------------
Thread-Topic: WCF hosted in a webservice
thread-index: AcibJIPR/116RF3rRpymhXG0 8ZjkVQ==
X-WBNR-Posting-Host: 199.106.94.142
From: =?Utf-8?B?d2R1ZGVr?= <wd****@newsgro up.nospam>
Subject: WCF hosted in a webservice
Date: Thu, 10 Apr 2008 09:04:11 -0700
I have a web service hosting a WCF library, which works fine but produced
a
strange signature when interacting with vs 2005/2.0 clients. My method
takes
3 strings and returns a bool as below.
bool CanRun(string appName, string userName, string function);
However the auto generated proxy in 2005 looks like this
void CanRun(string appName, string userName, string function, out bool
result, out bool resultSpecified );
I unserstand the new result parameter, but what is the resultSpecified
parameter that was created? It looks like it is always the same as the
result
parameter, although admittedly I haven't tested this very thouroughly
yet?
I'm pushing for WCF in our organization and don't want to get caught not
haveing an explanation of what is occurring here.
Thanks,
Bill This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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