CODEWITHSUNDEEP
c#configuration
john
john

Reputation: 4443

c# Application Configuration File: AppSettings Reads Empty?

This is my first time using an XML config file. In the solution explorer I right click, add, new item, application config. file.

I then edited the file to read...

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>    
    <add key="Key1" value="1000" />    
  </appSettings>
</configuration>

...and tried to access it with...

Int32.Parse(ConfigurationManager.AppSettings.Get("Key1"));

...but it says that the parameter is null. I looked at just ConfigurationManager.AppSettings and it's AllKeys property has dimension 0.

What am I doing wrong?

Thanks!

Upvotes: 3

Views: 7848

Answers (3)

Jorgesys
Jorgesys

Reputation: 126563

To ensure get information from App.config using ConfigurationManager.AppSettings["<Key name>"]; be sure to set your values inside <appSettings> section.

Example:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />      
    </startup>
  
   <appSettings>
    <add key ="IntervalSeconds" value ="60000"/>
    <add key ="OutputPathLog" value ="\\myserver\hackingtrack\Projects\Log\"/>
    <!--Jorgesys si Elenasys sunt puisori-->
    <add key="InputFeeds1" value="https://cld.blahbla.com//portadaKick.json" />
    <add key="InputFeeds2" value="https://cld.blahbla.com//portadaKick.json" />
    <add key="InputFeeds3" value="https://cld.blahbla.com//portadaKick.json" />

    </appSettings>
</configuration>

Retrieving values:

   string intervalSeconds = ConfigurationManager.AppSettings["IntervalSeconds"];
   string inputFeeds1 = ConfigurationManager.AppSettings["InputFeeds1"]; ; 
   string inputFeeds2 = ConfigurationManager.AppSettings["InputFeeds2"]; 
   string inputFeeds3 = ConfigurationManager.AppSettings["InputFeeds3"];

Upvotes: 0

Ram&#243;n
Ram&#243;n

Reputation: 119

I know this is super old but I just encountered this opening an old project. A reference to System.Configuration was missing.

Upvotes: 1

Dean Kuga
Dean Kuga

Reputation: 12131

  1. Right-click on your project, choose Properties>Settings tab and edit your settings there because the config file is not the only place these values are stored at.

  2. In your code use Settings.Default.MySetting to access the settings.

You'll need to add using MyProjectName.Properties; to your using statements in order to access the settings this way or you'll have to fully qualify it as MyProjectName.Properties.Settings.Default.MySetting...

Upvotes: 2

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