Updating .config file with data from the user

Question

I am trying to save some settings to the appSettings section of my configuration file so I may use the data to carry out the processes of the program. On the click of a button I want the data coming from the user to be saved in the config file. The code I am using is:

private void button1_Click(object sender, EventArgs e)
{

            System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);

            config.AppSettings.Settings["key1"].Value = "value1";
            config.AppSettings.Settings["key2"].Value = "value2";

            config.Save(ConfigurationSaveMode.Modified);
            ConfigurationManager.RefreshSection("appSettings");

}

Before the code is executed my app.config file looks like this:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
  </configSections>
  <appSettings>
    <add key="roshane" value=""/>
    <add key="email" value=""/>
    <add key="super" value=""/>
    <add key="phone" value=""/>
  </appSettings>
  <connectionStrings>
    <add name="AutoReportEmailerConnectionString"
        connectionString="Data Source=roshane\sqlexpress;Initial Catalog=ICR_v5.0;Integrated Security=True"
        providerName="System.Data.SqlClient" />
  </connectionStrings>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
  </startup>
</configuration>

After the code is execute the programName.exe.config file is the same as the app.config. Is there something I am missing why the values are not being added to the programName.exe.config file?

A borderline duplicate. Suggest that you absorb the info in [this answer](http://stackoverflow.com/a/4514945/14357) and reconsider your question. — spender, Aug 13 '14 at 15:38
where you use "key1" and "key2" you should use "roshane" or "email"..... — terrybozzio, Aug 13 '14 at 16:14

score 0 · Answer 1 · answered Aug 13 '14 at 15:37

0

config.Save(ConfigurationSaveMode.Modified) works only when you modify an exisint key in other words a key that was in the web config before if you need to actually add key values to the web config just call config.Save() with no parameters

answered Aug 13 '14 at 15:37

Luis Palacios

754
13
35

score 0 · Answer 2 · answered Aug 13 '14 at 16:14

0

If you want to add new Key to config file, need to add it first in Settings collection:

config.AppSettings.Settings.Add("Key", "Value");

Then call Save method.

answered Aug 13 '14 at 16:14

Vish

46
3

yes i know its the title using updating word but at the end OP says added so your probably right. – terrybozzio Aug 13 '14 at 16:21

Updating .config file with data from the user

2 Answers2