C# – How to change application settings (Settings) while app is open

.netapplication-settingsc++

I've written a class that should allow me to easily read and write values in app settings:

public static class SettingsManager
    {
        public static string ComplexValidationsString
        {
            get { return (string)Properties.Settings.Default["ComplexValidations"]; }
            set
            {
                Properties.Settings.Default["ComplexValidations"] = value;
                Properties.Settings.Default.Save();
            }
        }

the problem is the value isn't really saved, I mean it is not changed when I exit the application and run it again. What can I do to ensure that the saved value persists between closing and opening again?

Best Solution

settings scope must be user not application

Related Solutions

C# – How to save application settings in a Windows Forms application

If you work with Visual Studio then it is pretty easy to get persistable settings. Right click on the project in Solution Explorer and choose Properties. Select the Settings tab and click on the hyperlink if settings doesn't exist.

Use the Settings tab to create application settings. Visual Studio creates the files Settings.settings and Settings.Designer.settings that contain the singleton class Settings inherited from ApplicationSettingsBase. You can access this class from your code to read/write application settings:

Properties.Settings.Default["SomeProperty"] = "Some Value";
Properties.Settings.Default.Save(); // Saves settings in application configuration file

This technique is applicable both for console, Windows Forms, and other project types.

Note that you need to set the scope property of your settings. If you select Application scope then Settings.Default.<your property> will be read-only.

Reference: How To: Write User Settings at Run Time with C# - Microsoft Docs

C# – How to get the application’s path in a .NET console application

System.Reflection.Assembly.GetExecutingAssembly().Location¹

Combine that with System.IO.Path.GetDirectoryName if all you want is the directory.

¹As per Mr.Mindor's comment:
System.Reflection.Assembly.GetExecutingAssembly().Location returns where the executing assembly is currently located, which may or may not be where the assembly is located when not executing. In the case of shadow copying assemblies, you will get a path in a temp directory. System.Reflection.Assembly.GetExecutingAssembly().CodeBase will return the 'permanent' path of the assembly.

Best Solution

Related Solutions

C# – How to save application settings in a Windows Forms application

C# – How to get the application’s path in a .NET console application

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