What will happen if *.exe.config is deleted?

I added application settings to t开发者_如何学运维he project. These settings are saved in 'NameOfMyApp.exe.config'. What would happen if somebody were to delete this file? Is it necessary to create it again? Where should I store the values of default settings?

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If you are using the settings designer and the generated code (in the Properties namespace) you have defaults in the (generated) code.

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If someone deletes the .config file, it's gone, baby, gone. And it will be necessary to create, deploy, or GET it again.

Storing values of default settings - probably two obvious answers would be in a config file or a database table. If you default settings are fairly static and not really user specific, a config file may be a good option (or are set at the initial deployment/installation). If these values can change by the user, it's probably better to store them in the database.

I think the answer to where to store your default settings really depends on the nature of the application and how the user's use it.

Hope this helps!

UPDATE: oh, and if they do delete the config, I hope you have it stored in source control somewhere. :) Probably make your life a lot easier. Good luck!!

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Program will be work correctly if there is global::System.Configuration.DefaultSettingValueAttribute in generated code.

I wrote simple example (Windows Forms):

using System;
using System.Windows.Forms;

    namespace AppSettings {
        public partial class Form1 : Form {
            public Form1() {
                InitializeComponent();
            }

            private void Form1_Load(object sender, EventArgs e) {
                textBox1.Text = Properties.Settings.Default.tbText;
            }
        }
    }

TbText scope is application. I compiled it in release mode. I deleted all files except *.exe. It is work correct because this setting is into assembly:

namespace AppSettings.Properties {


    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "10.0.0.0")]
    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {

        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));

        public static Settings Default {
            get {
                return defaultInstance;
            }
        }

        [global::System.Configuration.ApplicationScopedSettingAttribute()]
        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         //here!
        [global::System.Configuration.DefaultSettingValueAttribute("!!!***HALLO***!!!")]
         //
        public string tbText {
            get {
                return ((string)(this["tbText"]));
            }
        }
    }
}