Create a Settings Page for Windows phone-白红宇

Create a Settings Page for Windows phone

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发布时间：2019-06-23

本文共 5744 字，大约阅读时间需要 19 分钟。

using System;using System.IO.IsolatedStorage;using System.Diagnostics;using System.Collections.Generic;namespace SettingsSample{    public class AppSettings    {        // Our isolated storage settings        IsolatedStorageSettings settings;        // The isolated storage key names of our settings        const string CheckBoxSettingKeyName = "CheckBoxSetting";        const string ListBoxSettingKeyName = "ListBoxSetting";        const string RadioButton1SettingKeyName = "RadioButton1Setting";        const string RadioButton2SettingKeyName = "RadioButton2Setting";        const string RadioButton3SettingKeyName = "RadioButton3Setting";        const string UsernameSettingKeyName = "UsernameSetting";        const string PasswordSettingKeyName = "PasswordSetting";        // The default value of our settings        const bool CheckBoxSettingDefault = true;        const int ListBoxSettingDefault = 0;        const bool RadioButton1SettingDefault = true;        const bool RadioButton2SettingDefault = false;        const bool RadioButton3SettingDefault = false;        const string UsernameSettingDefault = "";        const string PasswordSettingDefault = "";        ///         /// Constructor that gets the application settings.        /// 
        public AppSettings()        {            // Get the settings for this application.            settings = IsolatedStorageSettings.ApplicationSettings;        }        ///         /// Update a setting value for our application. If the setting does not        /// exist, then add the setting.        /// 
        ///         ///         /// 
            public bool AddOrUpdateValue(string Key, Object value)        {            bool valueChanged = false;            // If the key exists            if (settings.Contains(Key))            {                // If the value has changed                if (settings[Key] != value)                {                    // Store the new value                    settings[Key] = value;                    valueChanged = true;                }            }            // Otherwise create the key.            else            {                settings.Add(Key, value);                valueChanged = true;            }            return valueChanged;        }        ///         /// Get the current value of the setting, or if it is not found, set the         /// setting to the default setting.        /// 
        /// 
            ///         ///         /// 
            public T GetValueOrDefault
    
     (string Key, T defaultValue)        {            T value;            // If the key exists, retrieve the value.            if (settings.Contains(Key))            {                value = (T)settings[Key];            }            // Otherwise, use the default value.            else            {                value = defaultValue;            }            return value;        }        /// 
             /// Save the settings.        /// 
        public void Save()        {            settings.Save();        }        /// 
             /// Property to get and set a CheckBox Setting Key.        /// 
        public bool CheckBoxSetting        {            get            {                return GetValueOrDefault
     
      (CheckBoxSettingKeyName, CheckBoxSettingDefault);            }            set            {                if (AddOrUpdateValue(CheckBoxSettingKeyName, value))                {                    Save();                }            }        }        /// 
              /// Property to get and set a ListBox Setting Key.        /// 
        public int ListBoxSetting        {            get            {                return GetValueOrDefault
      
       (ListBoxSettingKeyName, ListBoxSettingDefault);            }            set            {                if (AddOrUpdateValue(ListBoxSettingKeyName, value))                {                    Save();                }            }        }        /// 
               /// Property to get and set a RadioButton Setting Key.        /// 
        public bool RadioButton1Setting        {            get            {                return GetValueOrDefault
       
        (RadioButton1SettingKeyName, RadioButton1SettingDefault);            }            set            {                if (AddOrUpdateValue(RadioButton1SettingKeyName, value))                {                    Save();                }            }        }        /// 
                /// Property to get and set a RadioButton Setting Key.        /// 
        public bool RadioButton2Setting        {            get            {                return GetValueOrDefault
        
         (RadioButton2SettingKeyName, RadioButton2SettingDefault);            }            set            {                if (AddOrUpdateValue(RadioButton2SettingKeyName, value))                {                    Save();                }            }        }        /// 
          /// Property to get and set a RadioButton Setting Key. /// 
        public bool RadioButton3Setting        {            get            {                return GetValueOrDefault
         
          (RadioButton3SettingKeyName, RadioButton3SettingDefault); } set { if (AddOrUpdateValue(RadioButton3SettingKeyName, value)) { Save(); } } } /// 
           /// Property to get and set a Username Setting Key. /// 
 public string UsernameSetting { get { return GetValueOrDefault
          
           (UsernameSettingKeyName, UsernameSettingDefault); } set { if (AddOrUpdateValue(UsernameSettingKeyName, value)) { Save(); } } } /// 
            /// Property to get and set a Password Setting Key. /// 
 public string PasswordSetting { get { return GetValueOrDefault
           
            (PasswordSettingKeyName, PasswordSettingDefault); } set { if (AddOrUpdateValue(PasswordSettingKeyName, value)) { Save(); } } } }}