SoapException.Actor Property

Reference

Definition

Namespace:: System.Web.Services.Protocols

Assembly:: System.Web.Services.dll

Important

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Gets the piece of code that caused the exception.

public:
 property System::String ^ Actor { System::String ^ get(); };

public string Actor { get; }

member this.Actor : string

Public ReadOnly Property Actor As String

Property Value

String

The piece of code that caused the exception.

Examples

The following Web Form example calls the Math XML Web service method, which throws an exception if a division by zero occurs. When the exception is thrown, the Web Form catches the exception and outputs the exception details, including the Actor and Code properties, into an HtmlTable control.

<%@ Page Language="C#" %>
<html>
 <head>
 <script runat=server language="C#">
   void Page_Load(Object o, EventArgs e)
   {
     
   int UsageCount;
   // Create a new instance of the proxy class.
   MyMath.Math math = new MyMath.Math(); 
   // Make a call to the Math XML Web service, which throws an exception.
   try
       {
       math.Divide(3, 0);
       }
   catch (System.Web.Services.Protocols.SoapException error)
       {
       // Populate the table with the exception details.
       ErrorTable.Rows.Add(BuildNewRow("Fault Code Namespace", error.Code.Namespace));
       ErrorTable.Rows.Add(BuildNewRow("Fault Code Name", error.Code.Name));        
       ErrorTable.Rows.Add(BuildNewRow("SOAP Actor that threw Exception", error.Actor));        
       ErrorTable.Rows.Add(BuildNewRow("Error Message", error.Message));        
       return;
       }
   }
 
   HtmlTableRow BuildNewRow(string Cell1Text, string Cell2Text)
   {
       HtmlTableRow row = new HtmlTableRow();
       HtmlTableCell cell1 = new HtmlTableCell();
       HtmlTableCell cell2 = new HtmlTableCell();
         
       // Set the contents of the two cells.
       cell1.Controls.Add(new LiteralControl(Cell1Text));
       // Add the cells to the row.
       row.Cells.Add(cell1);
     
       cell2.Controls.Add(new LiteralControl(Cell2Text));
     
       // Add the cells to the row.
       row.Cells.Add(cell2);
       return row;
     }
 </script>
 </head>
 <body>
     <table id="ErrorTable"
        CellPadding=5 
        CellSpacing=0 
        Border="1" 
        BorderColor="black" 
        runat="server" />
 </body>

<%@ Page Language="VB"%>
<html>
 <head>
 <script runat=server language="VB">
Sub Page_Load(o As Object, e As EventArgs)    
    Dim UsageCount As Integer
    ' Create a new instance of the proxy class.
    Dim math As New MyMath.Math()
    ' Make a call to the Math XML Web service, which throws an exception.
    Try
        math.Divide(3, 0)
    Catch err As System.Web.Services.Protocols.SoapException
        ' Populate our Table with the Exception details
        ErrorTable.Rows.Add(BuildNewRow("Fault Code Namespace", err.Code.Namespace))
        ErrorTable.Rows.Add(BuildNewRow("Fault Code Name", err.Code.Name))
        ErrorTable.Rows.Add(BuildNewRow("SOAP Actor that threw Exception", err.Actor))
        ErrorTable.Rows.Add(BuildNewRow("Error Message", err.Message))
        Return
    End Try
End Sub 'Page_Load


Function BuildNewRow(Cell1Text As String, Cell2Text As String) As HtmlTableRow
    Dim row As New HtmlTableRow()
    Dim cell1 As New HtmlTableCell()
    Dim cell2 As New HtmlTableCell()
    
    ' Set the contents of the two cells.
    cell1.Controls.Add(New LiteralControl(Cell1Text))
    ' Add the cells to the row.
    row.Cells.Add(cell1)
    
    cell2.Controls.Add(New LiteralControl(Cell2Text))
    
    ' Add the cells to the row.
    row.Cells.Add(cell2)
    Return row
End Function 'BuildNewRow
 </script>
 </head>
 <body>
     <table id="ErrorTable"
        CellPadding=5 
        CellSpacing=0 
        Border="1" 
        BorderColor="black" 
        runat="server" />
 </body>

In order for the preceding Web Form to use the following Math Web Service example, a namespace of MyMath was specified during the creation of the proxy class.

<%@ WebService Language="C#" Class="Math"%>
 using System.Web.Services;
 using System;
 public class Math : WebService {
     [WebMethod]
     public float Divide(int dividend, int divisor) {
         if (divisor == 0)
             throw new DivideByZeroException();
 
         return dividend/divisor;
     }
  }

<%@ WebService Language="VB" Class="Math"%>
Imports System.Web.Services
Imports System

Public Class Math
    Inherits WebService

    <WebMethod()> _
    Public Function Divide(dividend As Integer, divisor As Integer) As Single
        If divisor = 0 Then
            Throw New DivideByZeroException()
        End If 
        Return Convert.ToSingle(dividend / divisor)
    End Function 'Divide
End Class  'Math

Remarks

The Actor property can only be set using one of the constructors that accepts an Actor argument.

When a SOAP request is made, the message is sent to a recipient, which is specified in a SOAP actor attribute. If an exception occurs within an XML Web service, the value of the SOAP actor attribute is assigned to the Actor property. For XML Web services created using ASP.NET, the URL to the XML Web service method is the value of the SOAP actor attribute and is returned in the Actor property.

For more information on the SOAP actor attribute, see the SOAP specification.

Applies to

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