配置系统无法初始化

Question

在我的应用程序中,当我尝试使用此代码获取连接字符串时:

 System.Configuration.ConfigurationManager.ConnectionStrings["ConStr"].ConnectionString;

它抛出"配置系统无法初始化"的异常.app.config的格式在哪里错了？

 <?xml version="1.0"?>
    <configuration>


      <connectionStrings>
        <add name="ConStr" connectionString="Integrated Security=false;Persist Security Info=False;User ID=funny;password=veryfunny;Initial Catalog=vegimanager;Data Source=.\sqlexpress;"/>
      </connectionStrings>



      <configSections>
        <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
          <section name="Vegi_Manager.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false"/>
        </sectionGroup>
      </configSections>




      <userSettings>
        <Vegi_Manager.Properties.Settings>
          <setting name="FIRMNAME" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMADDRESS" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMCITY" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMSTATE" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMPHONE" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMMOBILE" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMEMAIL" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMTIN" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMPAN" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMMANDITAXNO" serializeAs="String">
            <value/>
          </setting>
          <setting name="INITIALFONFIGDONE" serializeAs="String">
            <value>False</value>
          </setting>
          <setting name="FIRMJURISDICTION" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMBANKDETAILS" serializeAs="String">
            <value/>
          </setting>
          <setting name="FIRMDETAILS" serializeAs="String">
            <value/>
          </setting>
          <setting name="BILLFORMATNO" serializeAs="String">
            <value>0</value>
          </setting>
          <setting name="PRINTERNAME" serializeAs="String">
            <value/>
          </setting>
        </Vegi_Manager.Properties.Settings>
      </userSettings>



      <startup>
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
      </startup>
    </configuration>

Answer 1

尝试将the configSections作为第一个子元素configuration,因为它configSections应该是配置的第一个元素

所以你的配置文件将是这样的:

<configuration>

  <configSections>
    <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <section name="Vegi_Manager.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false"/>
    </sectionGroup>
  </configSections>

  <connectionStrings>
    <add name="ConStr" connectionString="Integrated Security=false;Persist Security Info=False;User ID=funny;password=veryfunny;Initial Catalog=vegimanager;Data Source=.\sqlexpress;"/>
  </connectionStrings>

  <userSettings>
    <Vegi_Manager.Properties.Settings>
      <setting name="FIRMNAME" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMADDRESS" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMCITY" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMSTATE" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMPHONE" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMMOBILE" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMEMAIL" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMTIN" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMPAN" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMMANDITAXNO" serializeAs="String">
        <value/>
      </setting>
      <setting name="INITIALFONFIGDONE" serializeAs="String">
        <value>False</value>
      </setting>
      <setting name="FIRMJURISDICTION" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMBANKDETAILS" serializeAs="String">
        <value/>
      </setting>
      <setting name="FIRMDETAILS" serializeAs="String">
        <value/>
      </setting>
      <setting name="BILLFORMATNO" serializeAs="String">
        <value>0</value>
      </setting>
      <setting name="PRINTERNAME" serializeAs="String">
        <value/>
      </setting>
    </Vegi_Manager.Properties.Settings>
  </userSettings>

  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
  </startup>
</configuration>