我想在我的 ASP.NET web.config 文件中的自定义元素中存储三个值,所以这是我的 web.config:
<?xml version="1.0"?>
<configuration>
<configSections>
<section name="mySection" type="Foobar.MySection,Foobar" />
</configSections>
<mySection baseUri="https://blargh" sid="123" key="abc" />
<!-- etc, including <system.web> configuration -->
</configuration>
这是我的配置代码:
namespace Foobar {
public class MySection : ConfigurationSection {
public MySection () {
}
[ConfigurationProperty("baseUri", IsRequired=true)]
[StringValidator(MinLength=1)]
public String BaseUri {
get { return (String)this["baseUri"]; }
set { this["baseUri"] = value; }
}
[ConfigurationProperty("sid", IsRequired=true)]
[StringValidator(MinLength=1)]
public String Sid {
get { return (String)this["sid"]; }
set { this["sid"] = value; }
}
[ConfigurationProperty("key", IsRequired=true)]
[StringValidator(MinLength=1)]
public String Key {
get { return (String)this["key"]; }
set { this["key"] = value; }
}
}
}
我使用以下代码加载它:
MySection section = ConfigurationManager.GetSection("mySection") as MySection;
String x = section.BaseUri;
但是,当我在 ASP.NET 中运行我的代码时,我得到了这个异常:
[ArgumentException: The string must be at least 1 characters long.]
System.Configuration.StringValidator.Validate(Object value) +679298
System.Configuration.ConfigurationProperty.Validate(Object value) +41
[ConfigurationErrorsException: The value for the property 'baseUri' is not valid. The error is: The string must be at least 1 characters long.]
System.Configuration.BaseConfigurationRecord.CallCreateSection(Boolean inputIsTrusted, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object parentConfig, ConfigXmlReader reader, String filename, Int32 line) +278
System.Configuration.BaseConfigurationRecord.CreateSectionDefault(String configKey, Boolean getRuntimeObject, FactoryRecord factoryRecord, SectionRecord sectionRecord, Object& result, Object& resultRuntimeObject) +59
System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject) +1431
System.Configuration.BaseConfigurationRecord.GetSection(String configKey, Boolean getLkg, Boolean checkPermission) +56
System.Configuration.BaseConfigurationRecord.GetSection(String configKey) +8
System.Web.HttpContext.GetSection(String sectionName) +47
System.Web.Configuration.HttpConfigurationSystem.GetSection(String sectionName) +39
System.Web.Configuration.HttpConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String configKey) +6
System.Configuration.ConfigurationManager.GetSection(String sectionName) +78
<my code that calls GetSection>
当在我的 web.config 中设置正确格式的值时,为什么 StringValidator 会失败?我在看什么?