HttpPOST fails when using XmlNode

[JD]

Can someone explain why HTTP Post fails when implementing this simple
webmethod?
[WebMethod]

public XmlNode Echo(XmlNode doc) {

return doc;

}

while the following works fine:

[WebMethod]

public XmlNode EchoDoc(string doc)

{

XmlDocument xmldoc = new XmlDocument();

xmldoc.LoadXml(doc);

return (XmlNode) xmldoc;

}

Configuration:

ASP.NET 1.1 and

<add name="HttpPost"/> has been added to the web.config

Here's the error I receive:

System.InvalidOperationException: Echo Web Service method name is not valid.
at System.Web.Services.Protocols.HttpServerProtocol.I nitialize()
at System.Web.Services.Protocols.ServerProtocol.SetCo ntext(Type type,
HttpContext context, HttpRequest request, HttpResponse response)
at System.Web.Services.Protocols.ServerProtocolFactor y.Create(Type type,
HttpContext context, HttpRequest request, HttpResponse response, Boolean&
abortProcessing)

[Bruce Johnson]

This might seem silly, but have you tried changing the
name of the Echo method. The way the error message
reads, it sounds like Echo is some kind of reserved
word. Given the lack of anything better to try, it's the
first thing that I'd do.

Bruce Johnson
[url]http://www.ObjectSharp.com/Bruce[/url]

>-----Original Message-----
>Can someone explain why HTTP Post fails when

implementing this simple

>webmethod?
>[WebMethod]
>
>public XmlNode Echo(XmlNode doc) {
>
>return doc;
>
>}
>
>while the following works fine:
>
>[WebMethod]
>
>public XmlNode EchoDoc(string doc)
>
>{
>
>XmlDocument xmldoc = new XmlDocument();
>
>xmldoc.LoadXml(doc);
>
>return (XmlNode) xmldoc;
>
>}
>
>Configuration:
>
>ASP.NET 1.1 and
>
><add name="HttpPost"/> has been added to the web.config
>
>Here's the error I receive:
>
>System.InvalidOperationException: Echo Web Service

method name is not valid.

> at

System.Web.Services.Protocols.HttpServerProtocol.I nitializ
e()

> at

System.Web.Services.Protocols.ServerProtocol.SetCo ntext
(Type type,

>HttpContext context, HttpRequest request, HttpResponse

response)

> at

System.Web.Services.Protocols.ServerProtocolFactor y.Create
(Type type,

>HttpContext context, HttpRequest request, HttpResponse

response, Boolean&

>abortProcessing)
>
>
>.
>

[JD]

Changing the name of the web method doesn't help. Same result. Surely
someone is sending an XML document to a web method. Is there another
recommended way to do this as a XML document rather than an encoded string?

"Bruce Johnson" <Bruce@ObjectSharp.removethis.com> wrote in message
news:0a7b01c3b9ad$2aef4330$a401280a@phx.gbl...

> This might seem silly, but have you tried changing the
> name of the Echo method. The way the error message
> reads, it sounds like Echo is some kind of reserved
> word. Given the lack of anything better to try, it's the
> first thing that I'd do.
>
> Bruce Johnson
> [url]http://www.ObjectSharp.com/Bruce[/url]
>

> >-----Original Message-----
> >Can someone explain why HTTP Post fails when

> implementing this simple

> >webmethod?
> >[WebMethod]
> >
> >public XmlNode Echo(XmlNode doc) {
> >
> >return doc;
> >
> >}
> >
> >while the following works fine:
> >
> >[WebMethod]
> >
> >public XmlNode EchoDoc(string doc)
> >
> >{
> >
> >XmlDocument xmldoc = new XmlDocument();
> >
> >xmldoc.LoadXml(doc);
> >
> >return (XmlNode) xmldoc;
> >
> >}
> >
> >Configuration:
> >
> >ASP.NET 1.1 and
> >
> ><add name="HttpPost"/> has been added to the web.config
> >
> >Here's the error I receive:
> >
> >System.InvalidOperationException: Echo Web Service

> method name is not valid.

> > at

> System.Web.Services.Protocols.HttpServerProtocol.I nitializ
> e()

> > at

> System.Web.Services.Protocols.ServerProtocol.SetCo ntext
> (Type type,

> >HttpContext context, HttpRequest request, HttpResponse

> response)

> > at

> System.Web.Services.Protocols.ServerProtocolFactor y.Create
> (Type type,

> >HttpContext context, HttpRequest request, HttpResponse

> response, Boolean&

> >abortProcessing)
> >
> >
> >.
> >