对象绑定

闲话少说，还是开门见山吧。

首先，来看看界面

窗体中的所有控件都已经绑定我自定义的一个类Order，在实际运行中，修改窗体中任一部分的值，则另外一个相应的控件的值也会修改，这样可以用来观察值是否已经修改。

为了演示不同的控件应该如何绑定对象，这里我定义了Order的几个不同类型的属性

以下是Order的类代码

public class Order
    {
        public Order(){}
        public Order(int id,string name,DateTime time,bool isPaid)
        {
            Id = id;
            Name = name;
            Time = time;
            IsPaid = isPaid;
        }
        /// <summary>
        /// 订单的id
        /// </summary>
        private int id;
        /// <summary>
        /// 订单名称
        /// </summary>
        private string name;
        /// <summary>
        /// 下订单时间
        /// </summary>
        private DateTime time;
        /// <summary>
        /// 是否已付款
        /// </summary>
        private bool isPaid;

        /// <summary>
        /// 订单的id
        /// </summary>
        public int Id
        {
            get { return id; }
            set { id = value; }
        }

        /// <summary>
        /// 订单名称
        /// </summary>
        public string Name
        {
            get { return name; }
            set { name = value; }
        }

        /// <summary>
        /// 下订单时间
        /// </summary>
        public DateTime Time
        {
            get { return time; }
            set { time = value; }
        }

        /// <summary>
        /// 是否已付款
        /// </summary>
        public bool IsPaid
        {
            get { return isPaid; }
            set { isPaid = value; }
        }
    }

 

以下为窗体的代码

        private Order order;
        private void Form1_Load(object sender, EventArgs e)
        {
            order=new Order(10,"订单1",new DateTime(2009,9,10) ,true);
            BindingData();
        }
        /// <summary>
        /// 数据绑定
        /// </summary>
        private void BindingData()
        {
           
            textBox1.DataBindings.Add("Text", order, "Id");
            textBox2.DataBindings.Add("Text", order, "Name");
            dateTimePicker1.DataBindings.Add("Value", order, "Time");
            checkBox1.DataBindings.Add("Checked", order, "IsPaid");

            textBox3.DataBindings.Add("Text", order, "Id");
            textBox4.DataBindings.Add("Text", order, "Name");
            dateTimePicker2.DataBindings.Add("Value", order, "Time");
            checkBox2.DataBindings.Add("Checked", order, "IsPaid");
        }

基本的用法就是

Control.DataBindings.Add("控件的属性", 绑定的实体, "实体的属性");