2
我想從我們的內部.net應用程序使用DLL。如何使用配置節處理程序導入具有App.config的.NET DLL？
該DLL有一個App.config文件，並具有一個指定配置處理程序的配置部分。
我無法讓我的PowerShell腳本加載此dll。
我已經將問題簡化成最簡單的形式。
這裏是PowerShel劇本我想：
[appdomain]::CurrentDomain.SetData("APP_CONFIG_FILE", "D:\CustomConfig\CustomConfig\CustomConfigTestHarness\bin\Debug\CustomConfigTestHarness.exe.config")
Add-Type -Path 'D:\CustomConfig\CustomConfig\CustomConfigTestHarness\bin\Debug\CustomConfig.dll'
$mainClass = New-Object CustomConfig.Main
$mainClass.TestConfig()
這是配置文件：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="PrimarySqlServers" type="CustomConfig.ServerConfiguration, CustomConfig" />
</configSections>
<PrimarySqlServers>
<Server name="data source=SQL\SQL2005; Initial Catalog=master; Trusted_Connection=yes;"/>
</PrimarySqlServers>
</configuration>
這裏是DLL：
namespace CustomConfig
{
public class Main
{
public string TestEcho(string message)
{
return message;
}
public string TestConfig()
{
Configuration configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
string sectionName = "PrimarySqlServers";
ServerConfiguration serverConfiguration = configuration.GetSection(sectionName) as ServerConfiguration;
if (serverConfiguration == null || serverConfiguration.ServerList.Count == 0)
{
throw new ConfigurationErrorsException(string.Format(CultureInfo.InvariantCulture, "ERR_MISSING_OR_EMPTY_SECTION", sectionName));
}
ServerConfigurationEntry entry = serverConfiguration.ServerList[0];
{
return entry.Name;
}
}
}
}
的configClass.cs文件全文如下：
using System;
using System.Configuration;
using System.Diagnostics;
namespace CustomConfig
{
/// <summary>
/// Contains individual configuration information about a site to be deployed
/// </summary>
public class ServerConfiguration : ConfigurationSection
{
/// <summary>
/// Get the collection of assembly items
/// </summary>
[ConfigurationProperty("", IsDefaultCollection = true)]
public ServerConfigurationCollection ServerList
{
get { return (ServerConfigurationCollection) base[""]; }
}
}
/// <summary>
/// ContextCollection - represents the collection of context nodes
/// </summary>
public class ServerConfigurationCollection : ConfigurationElementCollection
{
/// <summary>
/// Get the assembly item element with the given name
/// </summary>
/// <param name="name">The name of the item you want</param>
/// <returns>The item specified</returns>
public new ServerConfigurationEntry this[string name]
{
get
{
if (IndexOf(name) < 0) return null;
return (ServerConfigurationEntry) BaseGet(name);
}
}
/// <summary>
/// Get a assembly item element by index
/// </summary>
/// <param name="index">The index of the item to get</param>
/// <returns>The item specified</returns>
public ServerConfigurationEntry this[int index]
{
get { return (ServerConfigurationEntry) BaseGet(index); }
}
/// <summary>
/// Clear the collection of items
/// </summary>
public void Clear()
{
BaseClear();
}
/// <summary>
/// Add a new item to the collection
/// </summary>
/// <param name="name">The name of the site to add</param>
public void AddItem(string name)
{
ServerConfigurationEntry newEntry = new ServerConfigurationEntry();
newEntry.Name = name;
this.BaseAdd(newEntry, true);
}
/// <summary>
/// Get the index of a given assembly item
/// </summary>
/// <param name="name">The name of the item to get the index of</param>
/// <returns>The index of the given item, or -1 if not found</returns>
public int IndexOf(string name)
{
for (int index = 0; index < base.Count; index++)
{
if (string.Compare(this[index].Name, name, StringComparison.OrdinalIgnoreCase) == 0)
return index;
}
return -1;
}
/// <summary>
/// Get the type of collection. BasicMap in this case.
/// </summary>
public override ConfigurationElementCollectionType CollectionType
{
get { return ConfigurationElementCollectionType.BasicMap; }
}
/// <summary>
/// Factory up a new element
/// </summary>
/// <returns>A new element</returns>
protected override ConfigurationElement CreateNewElement()
{
return new ServerConfigurationEntry();
}
/// <summary>
/// Get the unique key for a assembly item element
/// </summary>
/// <param name="element">The element to get the key for</param>
/// <returns>A unique identifier for the element</returns>
protected override object GetElementKey(ConfigurationElement element)
{
return ((ServerConfigurationEntry) element).Name;
}
/// <summary>
/// Get the XML element name for elements of this type
/// </summary>
protected override string ElementName
{
get { return "Server"; }
}
}
/// <summary>
/// ContextElement - represents a single context element in the config
/// </summary>
[DebuggerDisplay("{Name}")]
public class ServerConfigurationEntry : ConfigurationElement
{
private const string NAME = "name";
/// <summary>
/// Get or set the server name or connection string
/// </summary>
[ConfigurationProperty(NAME, DefaultValue = "", IsRequired = true, IsKey = true)]
public string Name
{
[DebuggerStepThrough]
get { return (string) this[NAME]; }
[DebuggerStepThrough]
set { this[NAME] = value; }
}
}
}
該錯誤消息我收到的時候我嘗試運行它是：
Exception calling `"TestConfig" with "0" argument(s)`:
"An error occurred creating the configuration section handler for PrimarySqlServers:
Could not load file or assembly 'CustomConfig' or one of its dependencies. The system cannot find the file specified.
(D:\CustomConfig\CustomConfig\CustomConfigTestHarness\bin\Debug\CustomConfigTestHarness.exe.config line 4)"
At C:\dll.ps1:15 char:1
+ $mainClass.TestConfig()
+ ~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : ConfigurationErrorsException
據我所見，CustomConfig.ServerConfiguration沒有被定義在任何地方 – 2013-02-26 08:34:21
TestEcho方法是否工作？如果沒有，你可能會檢查http://stackoverflow.com/questions/2094694/how-can-i-run-powershell-with-the-net-4-runtime – nickvane 2013-02-26 09:59:55
謝謝你看我的問題。是的，TestEcho工作正常。 – 2013-03-03 22:25:34