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VB.NET Exception.Message属性代码示例

本文整理汇总了VB.NET中System.Exception.Message属性的典型用法代码示例。如果您正苦于以下问题:VB.NET Exception.Message属性的具体用法?VB.NET Exception.Message怎么用?VB.NET Exception.Message使用的例子?那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在System.Exception的用法示例。


在下文中一共展示了Exception.Message属性的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。

示例1: New

' Example for the Exception.HelpLink, Exception.Source,
' Exception.StackTrace, and Exception.TargetSite properties.
Namespace NDP_UE_VB

    ' Derive an exception; the constructor sets the HelpLink and 
    ' Source properties.
    Class LogTableOverflowException
        Inherits Exception

        Private Const overflowMessage As String = _
            "The log table has overflowed."
           
        Public Sub New( auxMessage As String, inner As Exception )
            MyBase.New( String.Format( "{0} - {1}", _
                overflowMessage, auxMessage ), inner )

            Me.HelpLink = "http://msdn.microsoft.com"
            Me.Source = "Exception_Class_Samples"

        End Sub
    End Class

    Class LogTable
       
        Public Sub New(numElements As Integer)
            logArea = New String(numElements) {}
            elemInUse = 0
        End Sub
           
        Protected logArea() As String
        Protected elemInUse As Integer
           
        ' The AddRecord method throws a derived exception if 
        ' the array bounds exception is caught.
        Public Function AddRecord( newRecord As String ) As Integer

            Try
                Dim curElement as Integer = elemInUse
                logArea( elemInUse ) = newRecord
                elemInUse += 1
                Return curElement

            Catch ex As Exception
                Throw New LogTableOverflowException( _
                    String.Format( "Record ""{0}"" was not logged.", _
                        newRecord ), ex )
            End Try
        End Function ' AddRecord
    End Class

    Module OverflowDemo
       
        ' Create a log table and force an overflow.
        Sub Main( )
            Dim log As New LogTable( 4 )
              
            Console.WriteLine( "This example of " & vbCrLf & _
                "   Exception.Message, " & vbCrLf & _
                "   Exception.HelpLink, " & vbCrLf & _
                "   Exception.Source, " & vbCrLf & _
                "   Exception.StackTrace, and " & vbCrLf & _
                "   Exception.TargetSite " & vbCrLf & _
                "generates the following output." )
              
            Try
                Dim count As Integer = 0
                 
                Do
                    log.AddRecord( _
                        String.Format( "Log record number {0}", count ) )
                    count += 1
                Loop

            Catch ex As Exception
                Console.WriteLine( vbCrLf & _
                    "Message ---" & vbCrLf & ex.Message )
                Console.WriteLine( vbCrLf & _
                    "HelpLink ---" & vbCrLf & ex.HelpLink )
                Console.WriteLine( vbCrLf & _
                    "Source ---" & vbCrLf & ex.Source )
                Console.WriteLine( vbCrLf & _
                    "StackTrace ---" & vbCrLf & ex.StackTrace )
                Console.WriteLine( vbCrLf & "TargetSite ---" & _
                    vbCrLf & ex.TargetSite.ToString( ) )
            End Try
        End Sub

    End Module ' OverflowDemo
End Namespace ' NDP_UE_VB

' This example of
'    Exception.Message,
'    Exception.HelpLink,
'    Exception.Source,
'    Exception.StackTrace, and
'    Exception.TargetSite
开发者ID:VB.NET开发者,项目名称:System,代码行数:96,代码来源:Exception.Message

输出:

Message ---
The log table has overflowed. - Record "Log record number 5" was not logged.

HelpLink ---
http://msdn.microsoft.com

Source ---
Exception_Class_Samples

StackTrace ---
at NDP_UE_VB.LogTable.AddRecord(String newRecord)
at NDP_UE_VB.OverflowDemo.Main()

TargetSite ---
Int32 AddRecord(System.String)

示例2: MainClass

' 导入命名空间
Imports System

Public Class MainClass
    
    Shared Sub Main(ByVal args As String())
        Try
            CalculateValue()
        Catch ex As Exception
            Console.WriteLine( "ex.Message:" & ex.Message )
            Console.WriteLine( "ex.StackTrace:" & ex.StackTrace )
            Console.WriteLine( "ex.ToString:" & ex.ToString )
        End Try

    End Sub
    
    Shared Private Function CalculateValue() As Integer
        Return 1 \ Integer.Parse("0")
    End Function

End Class
开发者ID:VB程序员,项目名称:System,代码行数:21,代码来源:Exception.Message


注:本文中的System.Exception.Message属性示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。