SoapException.Actor Property


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Gets the piece of code that caused the exception.

Namespace:   System.Web.Services.Protocols
Assembly:  System.Web.Services (in System.Web.Services.dll)

Public ReadOnly Property Actor As String

Property Value

Type: System.String

The piece of code that caused the exception.

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 at

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="VB"%>
 <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.
        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))
    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.

    cell2.Controls.Add(New LiteralControl(Cell2Text))

    ' Add the cells to the row.
    Return row
End Function 'BuildNewRow
     <table id="ErrorTable"
        runat="server" />

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.

.NET Framework
Available since 1.1
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