soap exception and webservice

I am throwing a soap exception at webservice created in 2.0 using c#.

I have a windows application which is calling webservice.


I am catching a soap exception in try catch whereever there is call to webservice.

I have 2 catch exception block.

1. Soap exception block

catch (System.Web.Services.Protocols.SoapException Soapex)

2. General exception

catch (System.Exception ee)


in all cases all my exception are catching at general exception block.


my webservice is throwing soap exception as


throw new soapException("test", XmlQualifiedName object");


In general exception in getting message as "

Client found response content type of 'text/html; charset=utf-8', but expected 'text/xml'.

The request failed with the error message:"


And More .... message ..



How a soap exception is converting into general exception at cleint.

or I m missing some things??

2/19/2008 3:11:51 AM 7071 articles. 0 followers. Follow

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You should not have to use SoapException. Say in web service you throw System.ArgumentException.  The Framework will "wrap" your ArgumentException in a SoapException and then your client will "unwrap" the SoapException and give you an ArgumentException (inner exception).

2/19/2008 3:23:59 AM

Hello Matt,

we need to throw and user defined exception like ' Invalid soap header" .

instead of soap header i tried to throw a general exception like "Throw new exception("Message" at webservice . yet at client it is catching at general block 



2/19/2008 3:37:33 AM

You could define your own exception type, or just use the message property of an already defined exception type.  As far as I know SOAP is responsible for SoapException.

2/19/2008 3:45:36 AM

I need to throw a soap exception only. at machine in event viewer, there is entry for webservice with some details as

Exception information:

Exception type: SoapException

Exception message: "User defined message"

How ever when same exception is being catch at client end it is catching as general exception


2/19/2008 3:54:58 AM

When exception occurs at .asmx page code , then exception at client it is catching  at soap exception block.

I have implemented a Httphandler to check soap header inside webservice call,

if some exception occurs inside code of http handler, then this exception get catches at  general exception block.

Error while Proccessing Folder creation Request Client found response content type of 'text/html; charset=utf-8', but expected 'text/xml'.
The request failed with the error message:
        <title>Token validatiion failed. Token value send in user header is invalid or expired</title>
         body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}
         p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}
         b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}
         H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }
         H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }
         pre {font-family:"Lucida Console";font-size: .9em}
         .marker {font-weight: bold; color: black;text-decoration: none;}
         .version {color: gray;}
         .error {margin-bottom: 10px;}
         .expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }

    <body bgcolor="white">

            <span><H1>Server Error in '/Webservice' Application.<hr width=100% size=1 color=silver></H1>

            <h2> <i>Token validatiion failed. Token value send in user header is invalid or expired</i> </h2></span>

            <font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">

            <b> Description: </b>An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.


            <b> Exception Details: </b>System.Web.Services.Protocols.SoapException: Token validatiion failed. Token value send in user header is invalid or expired<br><br>

            <b>Source Error:</b> <br><br>

            <table width=100% bgcolor="#ffffcc">

Line 49:                 string strError = "Token validatiion failed. " + "Token value send in user header is invalid or expired";
Line 50:                 ErrorHandler eh = new ErrorHandler(strError, "OnAuthenticate", "WSAuthenticationModule");
<font color=red>Line 51:                 throw WebException.RaiseException("WSAuthenticationModule", "", strError, "101", "OnAuthenticate", FaultCode.Client);
</font>Line 52:             }
Line 53:         }</pre></code>



            <b> Source File: </b>Security\WSAuthenticationModule.cs<b>    Line: </b> 51

            <b>Stack Trace:</b> <br><br>

            <table width=100% bgcolor="#ffffcc">

[SoapException: Token validatiion failed. Token value send in user header is invalid or expired]
   Webservice.WSAuthenticationModule.OnAuthenticate(WebServiceEvents e) in D:\Projects\WorkingFolder for Webservice\WSAuthenticationModule.cs:51
  Webservice.WSAuthenticationModule.OnEnter(Object source, EventArgs eventArgs) in D:\Projects\WorkingFolder for /Webservice\WSAuthenticationModule.cs:114

2/22/2008 9:41:24 AM

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