我想要一个小的可执行文件具有一个app.config文件与多个部分位于section“组件”applicationSettings“(不是”appSettings“,我不需要写入该文件).每个部分将具有与设置时应加载的模块相对应的名称.
这里有一个例子：
<configuration>
<configSections>
<sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup,System,Version=2.0.0.0,Culture=neutral,PublicKeyToken=b77a5c561934e089" >
<section name="Executable" type="System.Configuration.ClientSettingsSection,PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<section name="FirstModule" type="System.Configuration.ClientSettingsSection,PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</sectionGroup>
</configSections>
<applicationSettings>
<Executable>
<setting name="MyFirstSetting" serializeAs="String">
<value>My awesome feature setting</value>
</setting>
</Executable>
<FirstModule path="path to the modules assembly">
<setting name="ImportantSettingToTheModule" serializeAs="String">
<value>Some important string</value>
</setting>
</FirstModule>
</applicationSettings>
</configuration>
现在如果我定义了FirstModule部分,我希望我的应用程序加载它的程序集.如果未定义该部分,则不应加载该模块.这不仅仅是一个模块,而是一个尚未定义的模块.
所以我基本上需要在运行时了解定义的部分.我该怎么做？
此外,我希望这可以成为一个可移植的可执行文件(=它必须运行在Mono),这是向后兼容的.NET 2.0.
看看GitHub的项目可能会很有趣(目前在this commit).
解决方法
ConfigurationManager.OpenExeConfiguration功能加载在您的配置文件.
然后在System.Configuration.Configuration类上,您将从ConfigurationManager.OpenExeConfiguration返回,您将要查看SectionGroups属性.这将返回一个ConfigurationSectionGroupCollection,您将在其中找到applicationSettings部分.
在ConfigurationSectionGroupCollection中将有一个Sections属性,其中包含可执行文件和FirstModule ConfigurationSection对象.
var config = ConfigurationManager.OpenExeConfiguration(pathToExecutable); var applicationSettingSectionGroup = config.SectionGroups["applicationSettings"]; var executableSection = applicationSettingSectionGroup.Sections["Executable"]; var firstModuleSection = applicationSettingSectionGroup.Sections["FirstModule"];
在获取ConfigurationSectionGroupCollection对象或ConfigurationSection对象后,您将需要检查null.如果它们为空,则它们不存在于配置文件中.
您还可以使用ConfigurationManager.GetSection获取部分
var executableSection = (ClientSettingsSection)ConfigurationManager
.GetSection("applicationSettings/Executable");
var firstModuleSection = (ClientSettingsSection)ConfigurationManager
.GetSection("applicationSettings/FirstModule");
再次,如果对象为空,则它们不存在于配置文件中.
var config = ConfigurationManager.OpenExeConfiguration(pathToExecutable);
var names = new List<string>();
foreach (ConfigurationSectionGroup csg in config.SectionGroups)
names.AddRange(GetNames(csg));
foreach (ConfigurationSection cs in config.Sections)
names.Add(cs.SectionInformation.SectionName);
private static List<string> GetNames(ConfigurationSectionGroup configSectionGroup)
{
var names = new List<string>();
foreach (ConfigurationSectionGroup csg in configSectionGroup.SectionGroups)
names.AddRange(GetNames(csg));
foreach(ConfigurationSection cs in configSectionGroup.Sections)
names.Add(configSectionGroup.SectionGroupName + "/" + cs.SectionInformation.SectionName);
return names;
}
