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Editorial Team
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Asked: 2026-05-23T04:46:04+00:00

In my application when I try to get the connection string by using this

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In my application when I try to get the connection string by using this code :

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

It throws an exception that “Configuration System Failed To Initialize”. Where is the format of app.config wrong ?

 <?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>
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1 Answer

  1. Editorial Team

    Try putting the configSections as the first child element of configuration, because configSections should be the first element of configurations

    So your config file will go like this:

    <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>
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