WinForm state from configuration file - winforms

Question

I would like to extract the state of checkboxes on a form (checked or not) from a configuration file I had manually wrote, whereas the key specify the control name and the value of the tag specify whether to check it or not:
<configuration>
<appSettings file="configuration file sample">
<add key="CheckBox1" value="true"/>
<add key="CheckBox2" value="false"/>
</appSettings>
</configuration>
Using the default settings file allows to load it like this:
CheckBox1.Checked = Properties.Settings.Default.CheckBox1State;
and save settings like this:
Properties.Settings.Default.CheckBox1State = CheckBox1.Checked;
But how can I load and save my own configuration file if I do not use the settings file?

Answer 1

Add the following method to your class and within CheckedChanged event call this method with control name and control state (Checked/Unchecked).
Updating the Configuration file
private void UpdateConfiguration(string controlName, bool checkboxState)
{
//Open Configuration file for modification
Configuration configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
//Get the string representation(True/False) of the checkbox state
string controlState = checkboxState ? Boolean.TrueString : Boolean.FalseString;
//Set value for control (ex:CheckBox1) under AppSettings section of configuration file
configuration.AppSettings.Settings[controlName].Value = controlState;
//Save only the modified section
configuration.Save(ConfigurationSaveMode.Modified);
//Referesh the configuration file
ConfigurationManager.RefreshSection("appSettings");
}
Calling UpdateConfiguration method
UpdateConfiguration("CheckBox1", CheckBox1.Checked);