SoapException.Actor 屬性
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
取得造成例外狀況的程式碼部分。
public:
property System::String ^ Actor { System::String ^ get(); };public string Actor { get; }member this.Actor : stringPublic ReadOnly Property Actor As String屬性值
造成例外狀況的程式碼片段。
範例
下列 Web Form 範例會呼叫 Math XML Web 服務方法，如果在零除時擲回例外狀況。 擲回例外狀況時，Web Form 會攔截例外狀況，並將例外狀況詳細資料，包括 Actor 和 Code 屬性輸出至 HtmlTable 控制項。
<%@ 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>
為了讓上述 Web Form 使用下列 Math Web 服務範例，在建立 Proxy 類別期間指定 了 的 MyMath 命名空間。
<%@ 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
備註
Actor屬性只能使用接受 Actor 引數的其中一個建構函式來設定。
發出 SOAP 要求時，訊息會傳送給收件者，該訊息會在 SOAP 動作專案屬性中指定。 如果 XML Web 服務內發生例外狀況，則會將 SOAP 動作專案屬性的值指派給 Actor 屬性。 針對使用 ASP.NET 建立的 XML Web 服務，XML Web 服務方法的 URL 是 SOAP 動作專案屬性的值，而且會在 屬性中 Actor 傳回。
如需 SOAP 動作專案屬性的詳細資訊，請參閱 SOAP 規格。
