私はこれを実行すると、カスタム構成例外(下のコード)を読むように設計された単純なコンソールアプリケーションを持っています。ConfigurationManager.GetSectionを呼び出すときに「無効なキー値」というメッセージが表示されてConfigurationErrorsExceptionが発生します。誰かが私が間違って行ったことを見ることができますか?ConfigurationErrorsException "無効なキー値"、何が間違っていますか?
設定ファイル
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="MySection" type="ConsoleApplication1.MySection, ConsoleApplication1" />
</configSections>
<MySection>
<add name="MyName" value="MyValue" />
</MySection>
</configuration>
コード
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Serialization;
using System.Configuration;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
MySection section = (MySection)ConfigurationManager.GetSection("MySection");
Console.WriteLine("Done");
}
}
public class MySection : ConfigurationSection
{
[ConfigurationProperty("", IsDefaultCollection = true)]
public MyCollection Collection
{
get
{
return (MyCollection)this[""];
}
}
}
public class MyCollection : ConfigurationElementCollection
{
protected override ConfigurationElement CreateNewElement()
{
return new MyElement();
}
protected override object GetElementKey(ConfigurationElement element)
{
return ((MyElement)element).Name;
}
}
public class MyElement : ConfigurationElement
{
[ConfigurationProperty("name")]
public string Name { get; set; }
[ConfigurationProperty("value")]
public string Value { get; set; }
}
}
例外
System.Configuration.ConfigurationErrorsException was unhandled
Message=Invalid key value. (C:\Users\martin.brown\documents\visual studio 2010\Projects\ConsoleApplication1\bin\Debug\ConsoleApplication1.vshost.exe.config line 7)
Source=System.Configuration
BareMessage=Invalid key value.
Filename=C:\Users\martin.brown\documents\visual studio 2010\Projects\ConsoleApplication1\bin\Debug\ConsoleApplication1.vshost.exe.config
Line=7
StackTrace:
at System.Configuration.BaseConfigurationRecord.EvaluateOne(String[] keys, SectionInput input, Boolean isTrusted, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentResult)
at System.Configuration.BaseConfigurationRecord.Evaluate(FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentResult, Boolean getLkg, Boolean getRuntimeObject, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSection(String configKey)
at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String sectionName)
at System.Configuration.ConfigurationManager.GetSection(String sectionName)
at ConsoleApplication1.Program.Main(String[] args) in C:\Users\martin.brown\documents\visual studio 2010\Projects\ConsoleApplication1\Program.cs:line 14
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
InnerException:
エラーは、基本のConfigurationElementのコレクションからMyElement.Nameプロパティが取得されなかったために発生していることが判明しました。 ConfigSectionにデフォルトのコレクションno nameを指定すると、要素を省略することができます。ご協力ありがとうございました。 –
同じ問題が、プロパティのbase ["name"]を呼び出さなかった。 –