VSTO全局异常处理程序

Question

我有一个VSTO应用程序，它使用Windows窗体用户控件来承载WPF窗体。我需要实现一个全局异常处理。尝试从顶级用户控件处理AppDomain.CurrentDomain.UnhandledException，但在引发异常时从不调用该函数。

在这种情况下，我可以在哪里/如何实现全局异常处理？

Answer 1

下面是我在项目中使用的VB.NET示例。我使用一个类来处理错误。

错误处理程序类

Public Class ErrorHandler

    Public Shared Sub DisplayMessage(ex As Exception)
        Dim sf As New System.Diagnostics.StackFrame(1)
        Dim caller As System.Reflection.MethodBase = sf.GetMethod()
        Dim currentProcedure As String = (caller.Name).Trim()
        Dim errorMessageDescription As String = ex.ToString()
        Dim msg As String = "Contact your system administrator. " + Environment.NewLine
        msg += (Convert.ToString("Procedure: ") & currentProcedure) + Environment.NewLine
        msg += "Description: " + ex.ToString() + Environment.NewLine
        MessageBox.Show(msg, "Unexpected Error", MessageBoxButtons.OK, MessageBoxIcon.Error)

    End Sub

End Class

用法示例

Public Class Ribbon

    Public Sub YourProcedure()
        Try
            'try stuff here...

        Catch ex As Exception
            ErrorHandler.DisplayMessage(ex)

        Finally


        End Try

    End Sub

End Class