using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace Test.Decorator
{
    /// <summary>
    /// WinDecorator.xaml 的交互逻辑
    /// </summary>
    public partial class WinDecorator : Window
    {
        public WinDecorator()
        {
            InitializeComponent();
            Items = new List<string>();
            this.Value = "1";
            for (int i = 0; i < 1000; i++)
            {
                Items.Add("adada" + i.ToString());
            }
            this.DataContext = this;
            this.Loaded += WinDecorator_Loaded;
        }

        private void WinDecorator_Loaded(object sender, RoutedEventArgs e)
        {
            //Spinner.CommitInput();
        }

        private void IntegerSpinner_ValueChanged(object sender, RoutedPropertyChangedEventArgs<int> e)
        {
            var old = e.OldValue;
            var newV = e.NewValue;
        }

        public List<string> Items { get; set; }

        public event PropertyChangedEventHandler PropertyChanged = (sender, e) => { };


        protected void RaisePropertyChanged(String propertyName = "")
        {
            if (PropertyChanged != null)
            {

                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }
        private string m_Value;
        /// <summary>
        /// 值信息
        /// </summary>
        public string Value
        {
            get { return this.m_Value; }
            set
            {
                this.m_Value = value;
                RaisePropertyChanged(nameof(this.Value));
                if (Spinner != null)
                {
                    var cc = Spinner.Value;
                }
            }
        }

        #region 测试绑定顺序
        /*
         * 可以说该控件双向绑定支持的并不好，这是一个前提，因为涉及到一些强制约束，又自定义了一些触发只改变的条件；
         * 有些控件，双向绑定支持的都不是太好
         * 
         * 给控件的Value赋值时，SetValue();先触发后台的绑定属性，再触发静态的force回调， changed回调
         * 
         * 所以直接使用这种形式去处理事件会出问题
         * 
         * 推荐使用前台ValueChanged事件，或者绑定Text加提交方式KeyDown模式处理;
         * 第二种方式，又造成了控件初始化的时候需要手动提交一次，【后台绑定的值才能传递到界面上显示】
         * 
         * 
         */
        #endregion
    }
}