Reading a string from app.config file

Question

My question isn't related to the connection string which is the most popular. The other only help I could find with this is someone not using the reference.

What I'm trying to do: I have a string stored in the app.config file, which looks like:

<applicationSettings>
  <App_5.Properties.Settings>
    <setting name="Location_Name" serializeAs="String">
      <value>String I want</value>
    </setting>

My code to pull the string is:

string Loc_Name = ConfigurationManager.AppSettings["Location_Name"];

I have the reference added, and used. When I run the program my return is always null.

Igor · Accepted Answer · 2017-04-13 15:22:53Z

11

You are storing it in the wrong place in the app.config. For single name/value pairs use the appSettings. Then your retrieval code in the question will work.

<configuration>
  <appSettings>
    <add key="Location_Name" value="String I want" />
  </appSettings>
</configuration>

Code (repeated from question)

var value = ConfigurationManager.AppSettings["Location_Name"];

edited Apr 13, 2017 at 15:22

answered Apr 13, 2017 at 15:13

Igor

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