C# Configuration.SettingsContext类代码示例

    	///<summary>
    	///Returns the collection of settings property values for the specified application instance and settings property group.
    	///</summary>
    	public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context, SettingsPropertyCollection props)
        {
            Type settingsClass = (Type)context["SettingsClassType"];
            string settingsKey = (string)context["SettingsKey"];
            string user = Thread.CurrentPrincipal.Identity.Name;

            // load settings from store
            Dictionary<string, string> storedValues = _store.GetSettingsValues(
                new SettingsGroupDescriptor(settingsClass), user, settingsKey);

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

            // Iterate through the settings to be retrieved
            foreach (SettingsProperty setting in props)
            {
                SettingsPropertyValue value = new SettingsPropertyValue(setting);
                value.IsDirty = false;

                // use the stored value, or set the SerializedValue to null, which tells .NET to use the default value
                value.SerializedValue = storedValues.ContainsKey(setting.Name) ? storedValues[setting.Name] : null;
                values.Add(value);
            }
 
            return values;
        }

        private void CreatePropNode(SettingsProperty setting, SettingsPropertyValue value, SettingsContext context)
        {
            string xPathQuery = getXPathQuerySection(setting, context);

            XmlNode groupNode = doc.SelectSingleNode(xPathQuery);

            if (groupNode == null)
            {
                groupNode = doc.CreateElement(GetSectionName(context));

                if (this.IsUserScoped(setting))
                {
                    userSettings.AppendChild(groupNode);
                }
                else
                {
                    appSettings.AppendChild(groupNode);
                }

            } //if (node == null)

            XmlNode nodeProp = doc.CreateElement(setting.Name);

            nodeProp.AppendChild(this.SerializeToXmlElement(setting, value));

            groupNode.AppendChild(nodeProp);
        }

		/// <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 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;
		}

        /// <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;

                if (SettingsDictionary.ContainsKey(setting.Name))
                {
                    value.SerializedValue = SettingsDictionary[setting.Name].value;
                }
                else //use defaults in the case where there are no settings yet
                {
                    value.SerializedValue = setting.DefaultValue == null ? string.Empty : setting.DefaultValue.ToString();
                }

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

        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 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);
    }

        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;
        }

        private SettingsPropertyValueCollection GetPropertyValues(SettingsContext context, SettingsPropertyCollection properties, bool returnPrevious)
		{
			Type settingsClass = (Type)context["SettingsClassType"];
			string settingsKey = (string)context["SettingsKey"];
			string user = Thread.CurrentPrincipal.Identity.Name;

			var group = new SettingsGroupDescriptor(settingsClass);
			if (returnPrevious)
			    group = _store.GetPreviousSettingsGroup(group);
			else if (AnyUserScoped(properties))
				SettingsMigrator.MigrateUserSettings(group);

			var storedValues = new Dictionary<string, string>();

			if (group != null)
			{
				foreach (var userDefault in _store.GetSettingsValues(group, null, settingsKey))
					storedValues[userDefault.Key] = userDefault.Value;

				foreach (var userValue in _store.GetSettingsValues(group, user, settingsKey))
					storedValues[userValue.Key] = userValue.Value;
			}

		    return GetSettingsValues(properties, storedValues);
		}

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

        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;
        }

		/// <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>
        /// 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>
        /// Gets the property values from a config file.
        /// </summary>
        /// ------------------------------------------------------------------------------------
        public override SettingsPropertyValueCollection GetPropertyValues(SettingsContext context,
			SettingsPropertyCollection properties)
        {
            // Set the config files
            var configMap = SetConfigFiles();

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

            ReadProperties(context, properties, configMap, ConfigurationUserLevel.None,
                values);
            ReadProperties(context, properties, configMap,
                ConfigurationUserLevel.PerUserRoamingAndLocal, values);
            ReadProperties(context, properties, configMap, ConfigurationUserLevel.PerUserRoaming,
                values);

            // save new user config file
            try
            {
                SetPropertyValues(context, values);
            }
            catch
            {
            }

            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;
        }