c# add settings.settings file code example

Example 1: c# settings file

// Write Setting
// The scope of the settings file must be set to user in order for it not to be read-only
SettingsFile.Default.MySetting = "A setting";
SettingsFile.Default.Save(); // In order to save all the changes

// Read Setting
string myvalue = SettingsFile.Default.MySetting; // retrieve a setting of type string

Example 2: add settings to config file c#

//Must install package System.Configuration.ConfigurationManager
//APPLICATION CONFIG FILE
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <appSettings>
        <add key="Key0" value="0" />
        <add key="Key1" value="1" />
        <add key="Key2" value="2" />
    </appSettings>
</configuration>

//CODE
using System.Configuration;
using System.Collections.Specialized;

//READ Value of Setting Key0
string sAttr = ConfigurationManager.AppSettings.Get("Key0");