Application Configuration question

[Patrick_]

Hey all. I am making an application configuration setting...

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>
<add key="ChrominanceVal"
value="0"  />
</appSettings>

</configuration>

Now, I want to change this setting when a trackbar is moved... I tried with this code:

ConfigurationSettings.AppSettings.Set("ChrominanceValtrtrckChrominance.Value)

But I get an error from VS saying it's read-only. How do I make it writable?

[Ianmac45]

application configurations files are not meant to be written to. they were meant to hold values that may be relevant to this specific release or something of that nature...

you would have to implement your own settings save/load functions.

[Winston]

Actually you can use the App.config file to save app settings.

http://msdn.microsoft.com/library/default....net04222003.asp

However i find it hard to just use it and i'd rather opt to use serialization to create my own xml settings files.

[azcodemonkey]

You can forego writing your own configuration handler and use a pre-built one from MS.

http://msdn.microsoft.com/library/default....html/config.asp