C# Configuration.SettingsPropertyValueCollection類代碼示例

		private static void SetSharedPropertyValues(ApplicationSettingsBase settings, Dictionary<string, string> values)
		{
			foreach (SettingsProvider provider in settings.Providers)
			{
				ISharedApplicationSettingsProvider sharedSettingsProvider = GetSharedSettingsProvider(provider);
				if (sharedSettingsProvider == null)
					throw new NotSupportedException("Setting shared values is not supported.");

				var properties = GetPropertiesForProvider(settings, provider);
				SettingsPropertyValueCollection settingsValues = new SettingsPropertyValueCollection();

				foreach (var value in values)
				{
					SettingsProperty property = properties[value.Key];
					if (property == null)
						continue;

					settingsValues.Add(new SettingsPropertyValue(property) { SerializedValue = value.Value, IsDirty = true });
				}

				sharedSettingsProvider.SetSharedPropertyValues(settings.Context, settingsValues);
			}

			SaveIfDirty(settings);
			settings.Reload();
		}

        /// <summary>
        /// Returns the collection of settings property values for the specified application instance and settings property group.
        /// </summary>
        /// <returns>
        /// A <see cref="T:System.Configuration.SettingsPropertyValueCollection"/> containing the values for the specified settings property group.
        /// </returns>
        /// <param name="context">A <see cref="T:System.Configuration.SettingsContext"/> describing the current application use.
        ///                 </param><param name="collection">A <see cref="T:System.Configuration.SettingsPropertyCollection"/> containing the settings property group whose values are to be retrieved.
        ///                 </param><filterpriority>2</filterpriority>
        public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context, SettingsPropertyCollection collection)
        {
            var username = (string) context["UserName"];
            var isAuthenticated = (bool) context["IsAuthenticated"];
            Profile profile = ProfileManager.Instance.GetCurrentUser(username);

            var svc = new SettingsPropertyValueCollection();

            foreach (SettingsProperty prop in collection)
            {
                var pv = new SettingsPropertyValue(prop);

                switch (pv.Property.Name)
                {
                    case _PROFILE_SHOPPINGCART:
                        pv.PropertyValue = CartList.GetCart(profile.UniqueID, true);
                        break;
                    case _PROFILE_WISHLIST:
                        pv.PropertyValue = CartList.GetCart(profile.UniqueID, false);
                        break;
                    case _PROFILE_ACCOUNT:
                        if (isAuthenticated)
                            pv.PropertyValue = new Address(profile);
                        break;
                    default:
                        throw new ApplicationException(string.Format("{0} name.", _ERR_INVALID_PARAMETER));
                }

                svc.Add(pv);
            }
            return svc;
        }

		/// <summary>
		/// Must override this, this is the bit that matches up the designer properties to the dictionary values
		/// </summary>
		/// <param name="context"></param>
		/// <param name="collection"></param>
		/// <returns></returns>
		public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context, SettingsPropertyCollection collection) {
			//load the file
			if (!_loaded) {
				_loaded = true;
				LoadValuesFromFile();
			}

			//collection that will be returned.
			SettingsPropertyValueCollection values = new SettingsPropertyValueCollection();

			//itterate thought the properties we get from the designer, checking to see if the setting is in the dictionary
			foreach (SettingsProperty setting in collection) {
				SettingsPropertyValue value = new SettingsPropertyValue(setting);
				value.IsDirty = false;

				//need the type of the value for the strong typing
				var t = Type.GetType(setting.PropertyType.FullName);

				if (SettingsDictionary.ContainsKey(setting.Name)) {
					value.SerializedValue = SettingsDictionary[setting.Name].value;
					value.PropertyValue = Convert.ChangeType(SettingsDictionary[setting.Name].value, t);
				}
				else //use defaults in the case where there are no settings yet
				{
					value.SerializedValue = setting.DefaultValue;
					value.PropertyValue = Convert.ChangeType(setting.DefaultValue, t);
				}

				values.Add(value);
			}
			return values;
		}

        public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context,
            SettingsPropertyCollection collection)
        {
            SettingsPropertyValueCollection result = new SettingsPropertyValueCollection();
            if (collection.Count < 1)
                return result;

            string userEmail = (string) context["UserName"]; //Эта строка мне пока не понятна
            if (string.IsNullOrEmpty(userEmail))
                return result;

            var user = UserService.GetByEmail(userEmail);
            var profile = ProfileService.GetProfile(user);

            foreach (SettingsProperty prop in collection)
            {
                SettingsPropertyValue svp = new SettingsPropertyValue(prop)
                {
                    PropertyValue = profile.GetType().GetProperty(prop.Name).GetValue(profile, null)
                };

                result.Add(svp);
            }

            return result;
        }

		// SetPropertyValue is invoked when ApplicationSettingsBase.Save is called
		// ASB makes sure to pass each provider only the values marked for that provider,
		// whether on a per setting or setting class-wide basis
		public override void SetPropertyValues(SettingsContext context,
											   SettingsPropertyValueCollection propvals)
		{
			// Iterate through the settings to be stored
			string version = GetCurrentVersionNumber();
			foreach (SettingsPropertyValue propval in propvals)
			{
				// If property hasn't been set, no need to save it
				if (!propval.IsDirty || (propval.SerializedValue == null))
				{
					continue;
				}

				// Application-scoped settings can't change
				// NOTE: the settings machinery may cause or allow an app-scoped setting
				// to become dirty, in which case, like the LFSP, we ignore it instead
				// of throwning an exception
				if (IsApplicationScoped(propval.Property))
				{
					continue;
				}

				using (RegistryKey key = CreateRegKey(propval.Property, version))
				{
					key.SetValue(propval.Name, propval.SerializedValue);
				}
			}
		}

		public object Clone ()
		{
			SettingsPropertyValueCollection col = new SettingsPropertyValueCollection ();
			col.items = (Hashtable)items.Clone ();

			return col;
		}

		/// <summary>
		/// Returns the collection of settings property values for the specified application instance and settings property group.
		/// </summary>
		/// <param name="context">A System.Configuration.SettingsContext describing the current application use.</param>
		/// <param name="collection">A System.Configuration.SettingsPropertyCollection containing the settings property group whose values are to be retrieved.</param>
		/// <returns>A System.Configuration.SettingsPropertyValueCollection containing the values for the specified settings property group.</returns>
		public override SettingsPropertyValueCollection GetPropertyValues(
			SettingsContext context, SettingsPropertyCollection collection)
		{
			string username        = (string)context["UserName"];
			bool   isAuthenticated = (bool)  context["IsAuthenticated"];

			SettingsPropertyValueCollection svc = new SettingsPropertyValueCollection();

			foreach (SettingsProperty prop in collection)
			{
				SettingsPropertyValue pv = new SettingsPropertyValue(prop);

				switch (pv.Property.Name)
				{
					case PROFILE_SHOPPINGCART: pv.PropertyValue = GetCartItems(username, true);  break;
					case PROFILE_WISHLIST:     pv.PropertyValue = GetCartItems(username, false); break;
					case PROFILE_ACCOUNT:
						if (isAuthenticated)
							pv.PropertyValue = GetAccountInfo(username);
						break;

					default:
						throw new ApplicationException(ERR_INVALID_PARAMETER + " name.");
				}

				svc.Add(pv);
			}

			return svc;
		}

 /// <summary>
 /// Updates the specified settings from this config class.
 /// </summary>
 /// <param name="settings">The settings.</param>
 public void Update(SettingsPropertyValueCollection settings)
 {
     foreach (PropertyInfo configProperty in this.GetType().GetProperties())
     {
         settings[configProperty.Name].PropertyValue = configProperty.GetValue(this, null);
     }
 }

 public override void SetPropertyValues(SettingsContext context, SettingsPropertyValueCollection collection)
 {
     if (_localFileSettingProvider != null)
     {
         _localFileSettingProvider.SetPropertyValues(context, collection);
     }
 }

		public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context, SettingsPropertyCollection props)
		{
			XmlSettingsFile localFile = XmlSettingsFile.GetLocalSettingsFile(GetTypeFromContext(context));
			XmlSettingsFile roamingFile = XmlSettingsFile.GetRoamingSettingsFile(GetTypeFromContext(context));
			SettingsPropertyValueCollection values = new SettingsPropertyValueCollection();

			foreach (SettingsProperty setting in props)
			{
				SettingsPropertyValue value = new SettingsPropertyValue(setting);
				value.IsDirty = false;

				if (IsRoaming(setting))
				{
					value.SerializedValue = roamingFile.GetValue(setting);
				}
				else
				{
					value.SerializedValue = localFile.GetValue(setting);
				}

				values.Add(value);
			}

			return values;
		}

        public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context,
            SettingsPropertyCollection collection)
        {
            var properties = new SettingsPropertyValueCollection();
            if (collection.Count < 1)
                return properties;

            var username = (string) context["UserName"];
            foreach (SettingsProperty property in collection)
            {
                properties.Add(new SettingsPropertyValue(property));
            }

            var db = new MyLifeEntities();
            var profile = db.tblProfiles.Where(item => item.UserName == username).FirstOrDefault();
            if (profile != null)
            {
                var names =
                    profile.PropertyNames.Split(new[] {";#"}, StringSplitOptions.RemoveEmptyEntries);
                var values =
                    profile.PropertyValues.Split(new[] {";#"}, StringSplitOptions.RemoveEmptyEntries);
                if (names.Length > 0 && values.Length > 0)
                {
                    for (var i = 0; i < names.Length; i++)
                    {
                        var property = properties[names[i]];
                        if (property == null) continue;
                        property.PropertyValue = Base64Serializer.Deserialize(values[i]);
                    }
                }
            }

            return properties;
        }

        public override void SetPropertyValues(SettingsContext context, SettingsPropertyValueCollection collection)
        {
            lock (_syncLock)
            {
                // locate dirty values that should be saved
                var valuesToStore = new Dictionary<string, string>();
                foreach (SettingsPropertyValue value in collection)
                {
                    //If storing the shared values, we store everything, otherwise only store user values.
                     if (value.IsDirty)
                     {
                         valuesToStore[value.Name] = (string) value.SerializedValue;
                     }
                }

                if (valuesToStore.Count > 0)
                {
                    var settingsClass = (Type)context["SettingsClassType"];
                    var settingsKey = (string)context["SettingsKey"];
                    var group = new SettingsGroupDescriptor(settingsClass);
                  
                    if (group.HasUserScopedSettings)
                        throw new ConfigurationErrorsException(SR.SystemConfigurationSettingsProviderUserSetting);
                  
                    _store.PutSettingsValues(group, null, settingsKey, valuesToStore);

                    // successfully saved user settings are no longer dirty
                    foreach (var storedValue in valuesToStore)
                        collection[storedValue.Key].IsDirty = false;
                }
            }
        }

        public static SettingsPropertyValueCollection GetSharedPropertyValues(LocalFileSettingsProvider provider, SettingsContext context, SettingsPropertyCollection properties, string currentExeConfigFilename = null)
        {
			var settingsClass = (Type)context["SettingsClassType"];

            var systemConfiguration = String.IsNullOrEmpty(currentExeConfigFilename)
                              ? SystemConfigurationHelper.GetExeConfiguration()
                              : SystemConfigurationHelper.GetExeConfiguration(currentExeConfigFilename);

        	var storedValues = systemConfiguration.GetSettingsValues(settingsClass);

			// Create new collection of values
			var values = new SettingsPropertyValueCollection();

			foreach (SettingsProperty setting in properties)
			{
				var value = new SettingsPropertyValue(setting)
				{
					SerializedValue = storedValues.ContainsKey(setting.Name) ? storedValues[setting.Name] : null,
					IsDirty = false
				};

				// use the stored value, or set the SerializedValue to null, which tells .NET to use the default value
				values.Add(value);
			}

			return values;
		}

        public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context, SettingsPropertyCollection collection)
        {
            // set all of the inherited default values first in case we have failure later
            SettingsPropertyValueCollection settings = new SettingsPropertyValueCollection();
            foreach (SettingsProperty prop in collection)
            {
                SettingsPropertyValue spv = new SettingsPropertyValue(prop);
                spv.SerializedValue = prop.DefaultValue;
                settings.Add(spv);
            }

            // now read in overridden user settings
            try
            {
                Configuration config = null;
                ClientSettingsSection clientSettings = GetUserSettings(out config, true);
                foreach (SettingsPropertyValue spv in settings)
                {
                    DeserializeFromXmlElement(spv.Property, spv, clientSettings);
                }
            }
            catch
            {
                // suppress
            }

            return settings;
        }

    public void SettingValuesCreatesAnAppAndUserId()
    {
      MySQLProfileProvider provider = InitProfileProvider();
      SettingsContext ctx = new SettingsContext();
      ctx.Add("IsAuthenticated", false);
      ctx.Add("UserName", "user1");

      SettingsPropertyValueCollection values = new SettingsPropertyValueCollection();
      SettingsProperty property1 = new SettingsProperty("color");
      property1.PropertyType = typeof(string);
      property1.Attributes["AllowAnonymous"] = true;
      SettingsPropertyValue value = new SettingsPropertyValue(property1);
      value.PropertyValue = "blue";
      values.Add(value);

      provider.SetPropertyValues(ctx, values);

      DataTable dt = FillTable("SELECT * FROM my_aspnet_applications");
      Assert.AreEqual(1, dt.Rows.Count);
      dt = FillTable("SELECT * FROM my_aspnet_users");
      Assert.AreEqual(1, dt.Rows.Count);
      dt = FillTable("SELECT * FROM my_aspnet_profiles");
      Assert.AreEqual(1, dt.Rows.Count);

      values["color"].PropertyValue = "green";
      provider.SetPropertyValues(ctx, values);

      dt = FillTable("SELECT * FROM my_aspnet_applications");
      Assert.AreEqual(1, dt.Rows.Count);
      dt = FillTable("SELECT * FROM my_aspnet_users");
      Assert.AreEqual(1, dt.Rows.Count);
      dt = FillTable("SELECT * FROM my_aspnet_profiles");
      Assert.AreEqual(1, dt.Rows.Count);
    }