VB.NET ErrObject.Raise方法代码示例

本文整理汇总了VB.NET中Microsoft.VisualBasic.ErrObject.Raise方法的典型用法代码示例。如果您正苦于以下问题：VB.NET ErrObject.Raise方法的具体用法？VB.NET ErrObject.Raise怎么用？VB.NET ErrObject.Raise使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。

在下文中一共展示了ErrObject.Raise方法的1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: Module1

Module Module1

    Const WidthErrorNumber As Integer = 1000
    Const WidthHelpOffset As Object = 100

    Sub Main()
        CallingProcedure()
    End Sub

    Sub TestWidth(ByVal width As Integer)
        If width > 1000 Then
            ' Replace HelpFile.hlp with the full path to an appropriate
            ' help file for the error. Notice that you add the error 
            ' number you want to use to the vbObjectError constant. 
            ' This assures that it will not conflict with a Visual
            ' Basic error.
            Err.Raise(vbObjectError + WidthErrorNumber, "ConsoleApplication1.Module1.TestWidth", 
                "Width must be less than 1000.", "HelpFile.hlp", WidthHelpOffset)
        End If
    End Sub

    Sub CallingProcedure()
        Try
            ' The error is raised in TestWidth.
            TestWidth(2000)
        Catch ex As Exception
            ' The Err object can access a number of pieces of
            ' information about the error.
            Console.WriteLine("Information available from Err object:")
            Console.WriteLine(Err.Number)
            Console.WriteLine(Err.Description)
            Console.WriteLine(Err.Source)
            Console.WriteLine(Err.HelpFile)
            Console.WriteLine(Err.HelpContext)
            Console.WriteLine(Err.GetException)

            Console.WriteLine(vbCrLf & "Information available from Exception object:")
            Console.WriteLine(ex.Message)
            Console.WriteLine(ex.ToString)

            Err.Clear()
        End Try
    End Sub
End Module

输出：

Information available from Err object:
-2147220504
Width must be less than 1000.
ConsoleApplication1.Module1.TestWidth
HelpFile.hlp
100
System.Exception: Width must be less than 1000.
at Microsoft.VisualBasic.ErrObject.Raise(Int32 Number, Object Source, Object
Description, Object HelpFile, Object HelpContext)
at ConsoleApplication1.Module1.TestWidth(Int32 width) in C:\Users\example\App
Data\Local\Temporary Projects\ConsoleApplication1\Module1.vb:line 17
at ConsoleApplication1.Module1.CallingProcedure() in C:\Users\example\AppData
\Local\Temporary Projects\ConsoleApplication1\Module1.vb:line 25

Information available from Exception object:
Width must be less than 1000.
System.Exception: Width must be less than 1000.
at Microsoft.VisualBasic.ErrObject.Raise(Int32 Number, Object Source, Object
Description, Object HelpFile, Object HelpContext)
at ConsoleApplication1.Module1.TestWidth(Int32 width) in C:\Users\example\App
Data\Local\Temporary Projects\ConsoleApplication1\Module1.vb:line 17
at ConsoleApplication1.Module1.CallingProcedure() in C:\Users\example\AppData
\Local\Temporary Projects\ConsoleApplication1\Module1.vb:line 25

注：本文中的Microsoft.VisualBasic.ErrObject.Raise方法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。