c# 创建自己的命令（命令模式）

【实例简介】c# 使用命令方式操作功能运行

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace CommandDemo
{
    public partial class MainForm : Form
    {

        public Document Document { get; private set; }
        public MainForm()
        {
            InitializeComponent();
            Document = new Document();

            richTextBox1.DataBindings.Add("Text", Document, "Content", false, DataSourceUpdateMode.OnPropertyChanged);

            //自定义命令。
            var openCmd = new OpenCommand();
            CommandBindingManager.Register(tsmiOpen, openCmd, this, "Document");
            CommandBindingManager.Register(tsbOpen, openCmd, this, "Document");

            //委托命令与命令绑定。
            var saveCmdBinding = CreateSaveCommandBinding();

            CommandBindingManager.Register(tsmiSave, saveCmdBinding);
            CommandBindingManager.Register(tsbSave, saveCmdBinding);
        }

        /// <summary>
        /// 创建保存文档命令。
        /// </summary>
        /// <returns>CommandBinding.</returns>
        private CommandBinding CreateSaveCommandBinding()
        {
            var cmd = new DelegateCommand(SaveDocument, CanSaveDocument);
            var binding = new CommandBinding(cmd, Document, "IsModified");
            return binding;
        }

        private bool CanSaveDocument(object arg)
        {
            return (Boolean)arg;
        }

        private void SaveDocument(object obj)
        {
            Document.Save();
        }


    }
}