使用CurrentDomain.SetData（＆QUOT; APP_CONFIG_FILE＆QUOT;）在PowerShell ISE中不工作 [英] Using CurrentDomain.SetData("APP_CONFIG_FILE") doesn't work in PowerShell ISE

问题描述

我试图使用.NET 4.0组件PowerShell ISE中，并试图改变它是通过使用配置文件：

I'm attempting to use a .NET 4.0 assembly in PowerShell ISE, and trying to change the config file which is used via:

[System.AppDomain]::CurrentDomain.SetData("APP_CONFIG_FILE", $PathToConfig);    

[Configuration.ConfigurationManager] :: ConnectionStrings.Count总是1，
和[Configuration.ConfigurationManager] ::的ConnectionStrings [0] .Name点总是返回LocalSqlServer这个，那ConnectionString的名称是不是在我的.config文件。

[Configuration.ConfigurationManager]::ConnectionStrings.Count always returns "1",
and "[Configuration.ConfigurationManager]::ConnectionStrings[0].Name" always returns "LocalSqlServer", and that ConnectionString name is not in my ".config" file.

请注意，从一个PowerShell执行PowerShell脚本命令提示符下按预期。这只是当我从PowerShell的ISE中执行它如预期，这是行不通的。

Note that executing the PowerShell script from a PowerShell command prompt functions as expected. It's just when I execute it from within PowerShell ISE, it doesn't work as expected.

推荐答案

这是因为App.config中为PowerShell ISE中的路径已经被加载并缓存，以便改变在app.config路径之后不会有所作为： stackoverflow.com/q/6150644/222748

It's because the path to app.config for PowerShell ISE has already been loaded and cached so changing the app.config path afterwards won't make a difference: stackoverflow.com/q/6150644/222748

下面是一个例子脚本，将清除缓存的路径，它会在PowerShell ISE中工作：

Here is an example script that will clear the cached path so it will work under PowerShell ISE:

[System.AppDomain]::CurrentDomain.SetData("APP_CONFIG_FILE", $PathToConfig)
Add-Type -AssemblyName System.Configuration
[Configuration.ConfigurationManager].GetField("s_initState", "NonPublic, Static").SetValue($null, 0)
[Configuration.ConfigurationManager].GetField("s_configSystem", "NonPublic, Static").SetValue($null, $null)
([Configuration.ConfigurationManager].Assembly.GetTypes() | where {$_.FullName -eq "System.Configuration.ClientConfigPaths"})[0].GetField("s_current", "NonPublic, Static").SetValue($null, $null)
[Configuration.ConfigurationManager]::ConnectionStrings[0].Name

这篇关于使用CurrentDomain.SetData（＆QUOT; APP_CONFIG_FILE＆QUOT;）在PowerShell ISE中不工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！