wpf MVVM框架基础

using Prism.Commands; //添加引用
using Prism.Mvvm; 
using System; 

namespace MVVM.ViewModels
{
    public class MainWindowViewModel : BindableBase
    {
        private string _title = "Prism Application";
        public string Title
        {
            get { return _title; }
            set { SetProperty(ref _title, value); }
        }

        private double input1;  //添加数据属性

        public double Input1
        {
            get { return input1; }
            set { input1 = value; }
        }

        private double intput2; //添加数据属性

        public double Input2
        {
            get { return intput2; }
            set { intput2 = value; }
        }

        private double result;

        public double Result //添加数据属性
        {
            get { return result; }
            set { 
                result = value;
                RaisePropertyChanged("Result"); //在Result值改变后通知Binding，Bing会改变与Result相关联的控件属性
            }
        }

       public DelegateCommand AddCommand { get; set; }//添加命令属性委托
       private void add()
        {
            this.Result = this.Input1 + this.Input2;
        }

        public MainWindowViewModel()
        {
            this.AddCommand = new DelegateCommand(new Action(add));//委托执行add
        }
    }
}