我在运行时对APP.CONFIG感到生气 [英] I am getting mad with APP.CONFIG in run-time

问题描述

大家好，

主要平台是以Framework 2.0和VB .NET为主要语言.

Primary platform is Framework 2.0 and VB .NET as main language.

当我从VS IDE中执行EXE时，我修改了"GIT.exe.config"，文件

何时  我使用VS IDE执行程序. 我修改了"GIT.vshost.exe.config"文件

When  I execute my program using VS IDE  I modify my "GIT.vshost.exe.config" file

我对此很生气.我只是只有这个功能，以改变我的连接字符串分配下

I'm getting mad with that. I just have only this function in order to alter my connectionstring allocated under

" appSettings "密钥:

"appSettings" key:

我应该编写哪种代码才能每次修改正确的文件?

How kind of code should I write in order to modify the correct file every time??

Public Function Cambiar_base_datos(ByVal basedatos As String, ByVal donde As String) As Boolean

        Dim KeyName As String
        Dim KeyValue As String = "Server='OFI99999\SQLEXPRESS';Initial Catalog=Talleres;User ID=usrTaller99;Password=9999;current language = spanish"
        Dim KeyValue2 As String

        Dim XmlDoc As New XmlDocument()
        KeyName = donde

        KeyValue2 = KeyValue.Replace("Initial Catalog=Talleres", "Initial Catalog=" & basedatos)


        XmlDoc.Load(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile)

        For Each xElement As XmlElement In XmlDoc.DocumentElement

            If xElement.Name = "appSettings" Then
                Try
                    For Each xNode As XmlNode In xElement.ChildNodes
                        If xNode.Attributes(0).Value = KeyName Then
                            xNode.Attributes(1).Value = KeyValue2
                        End If
                    Next

                Catch ex As Exception

                End Try

            End If
        Next
        XmlDoc.Save(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile)
    End Function

恩里克

推荐答案

您不应在运行时真正修改app.config.也就是说，上述代码有什么问题?在Visual Studio中执行代码时，*.vshost.exe会运行，因此调试器可以更快地启动.所以如果你从 在Visual Studio中，您的程序将修改* .vshost.exe.config，如果在Visual Studio外部运行，您的程序将在修改* .exe.config.

You shouldn't really modify the app.config at runtime.  That said, what's the problem with the above code?  When you execute your code from within Visual Studio the *.vshost.exe is run so the debugger can launch faster.  So if you run from Visual Studio, your program will modify *.vshost.exe.config and if you run outside of Visual Studio your program will modify *.exe.config.

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