我需要从使用App.config文件获得“
http://example.com”.
但目前我正在使用：
string peopleXMLPath = ConfigurationManager.AppSettings["server"];
我无法获得价值.
你能指出我做错了什么吗？
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<configSections>
<section name="device" type="System.Configuration.SingleTagSectionHandler" />
<section name="server" type="System.Configuration.SingleTagSectionHandler" />
</configSections>
<device id="1" description="petras room" location="" mall="" />
<server url="http://example.com" />
</configuration>
解决方法
我认为您需要获取配置部分,并访问：
var section = ConfigurationManager.GetSection("server") as NameValueCollection;
var value = section["url"];
您还需要更新配置文件：
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<configSections>
<section name="device" type="System.Configuration.NameValueSectionHandler" />
<section name="server" type="System.Configuration.NameValueSectionHandler" />
</configSections>
<device>
<add key="id" value="1" />
<add key="description" value="petras room" />
<add key="location" value="" />
<add key="mall" value="" />
</device>
<server>
<add key="url" value="http://example.com" />
</server>
</configuration>
编辑：As CodeCaster mentioned in his answer,SingleTagSectionHandler仅供内部使用.我认为NameValueSectionHandler是定义配置节的首选方式.
