ConfigurationManager.AppSettings计数为0

Question

C＃ - ConfigurationManager.AppSettings计数为0.还有想法？这是代码：

  var appSettings = ConfigurationManager.AppSettings;

                    if (appSettings.Count == 0)
                    {
                        Console.WriteLine("AppSettings is empty.");
                    }

在调试中运行。 VS将app.config复制到调试目录并为其命名 CBCuedERI.exe.config。这是配置文件的一部分

<applicationSettings>
    <CBCuedERI.Properties.Settings>
        <setting name="test" serializeAs="String">
            <value>one</value>
        </setting>
    </CBCuedERI.Properties.Settings>
</applicationSettings>

我也尝试了这个，它返回NULL

  string sss = ConfigurationManager.AppSettings.Get ( "test") ;

Answer 1

ConfigurationManager.AppSettings用于appSettings部分中的键值对

Reading settings from app.config or web.config in .net