我正在開發一個允許用戶管理Windows程序的應用程序。ConfigurationManager - 如何從.exe.config中讀取值
所以我有一個.exe.config文件與和包含此:
<?xml version="1.0" encoding="utf-8" ?><configuration>
<configSections>
<sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="Control_Desk.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
</sectionGroup>
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
</startup>
<userSettings>
<Control_Desk.Properties.Settings>
<setting name="enabletw" serializeAs="String">
<value>True</value>
</setting>
<setting name="enablelivemail" serializeAs="String">
<value>True</value>
</setting>
<setting name="enabledesktop" serializeAs="String">
<value>True</value>
</setting>
<setting name="enablelogmein" serializeAs="String">
<value>True</value>
</setting>
<setting name="enableps" serializeAs="String">
<value>False</value>
</setting>
<setting name="enablecorel" serializeAs="String">
<value>False</value>
</setting>
<setting name="enablescanner" serializeAs="String">
<value>False</value>
</setting>
</Control_Desk.Properties.Settings>
</userSettings>
,我想讀取和改變valeus,但是,沒有sucess,不改變被保存,我不能讀取任何值,當我嘗試,程序拋出一個System.NullReferenceException,這裏是我的代碼:
Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
if (config.AppSettings.Settings["enablelivemail"].Value == "True")
{
config.AppSettings.Settings["enablelivemail"].Value = "False";
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(config.AppSettings.SectionInformation.Name);
//ConfigurationManager.RefreshSection("appSettings");
}
else
{
config.AppSettings.Settings["enablelivemail"].Value = "True";
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection(config.AppSettings.SectionInformation.Name);
}
因此,在第二行我得到了異常,並沒有什麼作品,任何幫助嗎?
在此先感謝!
http://stackoverflow.com/a/11149569/3583859請參閱本文,將有助於 –
@VijayKumbhoje,您是否嘗試過OP的使用案例解決方案 –