[英]Change app.config programmatically at the runtime
我想在運行時動態更改appconfig中的TNS_ADMIN屬性。
這是app.config;
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="oracle.manageddataaccess.client"
type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.122.18.3, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
</startup>
<system.data>
<DbProviderFactories>
<remove invariant="Oracle.ManagedDataAccess.Client"/>
<add name="ODP.NET, Managed Driver" invariant="Oracle.ManagedDataAccess.Client" description="Oracle Data Provider for .NET, Managed Driver"
type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.122.18.3, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
</DbProviderFactories>
</system.data>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<publisherPolicy apply="no"/>
<assemblyIdentity name="Oracle.ManagedDataAccess" publicKeyToken="89b483f429c47342" culture="neutral"/>
<bindingRedirect oldVersion="4.122.0.0 - 4.65535.65535.65535" newVersion="4.122.18.3"/>
</dependentAssembly>
</assemblyBinding>
</runtime>
<oracle.manageddataaccess.client>
<version number="*">
<settings>
<setting name="TNS_ADMIN" value="asd" />
</settings>
</version>
</oracle.manageddataaccess.client>
</configuration>
目前我正在嘗試做的是
var config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
config.AppSettings.Settings.Add("TNS_ADMIN", @"anylocation");
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("appSettings");
但是,這增加了另一部分。
如何動態更改tnsadmin?
由於您使用的是自定義部分,因此需要執行以下操作:
var xmlDoc = new XmlDocument();
xmlDoc.Load(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);
var path = @"//oracle.manageddataaccess.client/version/settings/setting[@name='TNS_ADMIN']";
var attrs = xmlDoc.SelectSingleNode(path).Attributes["value"].Value = "some value";
xmlDoc.Save(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);
ConfigurationManager.RefreshSection(path);
如果使用默認的appSettings
部分,這應該可以工作:
System.Configuration.Configuration cnf = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
cnf.AppSettings.Settings["TNS_ADMIN"].Value = "my value";
cnf.Save(ConfigurationSaveMode.Modified);
您的代碼添加了一個新部分,因為您要告訴它
代替
config.AppSettings.Settings.Add("TNS_ADMIN", @"anylocation");
嘗試
config.AppSettings.Settings["TNS_ADMIN"].Value = "NewValue";
將NewValue
更改為您想要將其更改為
您在Config中的任何地方都沒有appSettings
。 這可能會導致引發錯誤。 無法確定是否不提供引發錯誤的行。 嘗試用<appSettings>
包裝<settings>
<appSettings>
:
<appSettings>
<version number="*">
<settings>
<setting name="TNS_ADMIN" value="asd" />
</settings>
</version>
</appSettings>
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.