Web与WinForm关于web.config的读取

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写Web长了，忘了WinForm关于 web.Config 的读写了，找了一下，自己写出来比较比较

以AppSettings为例说明：

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="pis" value="xxxx"/>
</appSettings>
</configuration>

1。读取

web： System.Web.Configuration.WebConfigurationManager.AppSettings["pis"];

winform： System.Configuration.ConfigurationManager.AppSettings["pis"];

2。添加

web：

Configuration config = WebConfigurationManager.OpenWebConfiguration(null);
AppSettingsSection appSettings = config.AppSettings;
appSettings.Settings.Add("pp", "pppppp");
config.Save(ConfigurationSaveMode.Modified);

winform：

Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
AppSettingsSection appSettings = config.AppSettings;
appSettings.Settings.Add("pp", "pppppp");
config.Save(ConfigurationSaveMode.Modified);

3。修改

web：

Configuration config = WebConfigurationManager.OpenWebConfiguration(null);
AppSettingsSection appSettings = config.AppSettings;
appSettings.Settings["pp"].Value = "qqqqqq";
config.Save(ConfigurationSaveMode.Modified);

winform：

Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
AppSettingsSection appSettings = config.AppSettings;
appSettings.Settings["pp"].Value = "qqqqqq";
config.Save(ConfigurationSaveMode.Modified);

4。删除

web：

onfiguration config = WebConfigurationManager.OpenWebConfiguration(null);
AppSettingsSection appSettings = config.AppSettings;
appSettings.Settings.Remove("pp");
config.Save(ConfigurationSaveMode.Modified);

winform：

Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
AppSettingsSection appSettings = config.AppSettings;
appSettings.Settings.Remove("pp");
config.Save(ConfigurationSaveMode.Modified);

当然还可以在配置文件里面写关于web.config的读写操作，用到的类稍微有些区别。

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <configSections>
        ......
    </configSections>
    <applicationSettings>
        <Winform1.Properties.Settings>
            <setting name="pp" serializeAs="String">
                <value>pppppp</value>
            </setting>
        </Winform1.Properties.Settings>
    </applicationSettings>
</configuration>

如果在winform中用

string connStr = Properties.Settings.Default.pp;即可读取