winform+devExpress+gridControl 数据绑定

• 0.工具箱->新建dev控件—>引用dev控件dll
• 1.将gridcontrol拖入页面
• 2.页面拖入容器控件，将girdcontrol加入此容器

groupBox1.Controls.Add(gc_Main);

• 3.生成一个数据源datatable

	dataTable = new DataTable();
	dataTable.Columns.Add("Name", typeof(string));
	dataTable.Columns.Add("Age", typeof(int));
	dataTable.Columns.Add("Gender", typeof(string));

	DataRow dataRow = dataTable.NewRow();
	dataRow["Name"] = "李一";
	dataRow["Age"] = 20;
	dataRow["Gender"] = "男";
	dataTable.Rows.Add(dataRow);

	dataRow = dataTable.NewRow();
	dataRow["Name"] = "张二";
	dataRow["Age"] = 22;
	dataRow["Gender"] = "女";
	dataTable.Rows.Add(dataRow);

• 4.绑定此数据库到gridcotrol

gc_Main.BindingContext = new BindingContext();
gc_Main.DataSource = dataTable;
gc_Main.ForceInitialize();

• 5.修改列名

	var gv = (GridView)gc_Main.MainView;

	gv.Columns["Name"].Caption = "姓名";
	gv.Columns["Age"].Caption = "年龄";
	gv.Columns["Gender"].Caption = "性别";

• 6.模拟更新【更新datatable界面自动更新，有点wpf的影子】

	var dueTime = 1000;  // 首次执行延迟时间
	var interval = 5 * 1000; // 后续执行间隔时间


	mytimer = new System.Threading.Timer(
		callback: (st) =>
		{
			RandomData();
		},
		state: null,
		dueTime: dueTime,
		period: interval);
		
	void RandomData()
	{
		for (int i = 0; i < dataTable.Rows.Count; i++)
		{
			var data = rd.Next(0, 100);
			dataTable.Rows[i]["Name"] = "name:-" + data.ToString();
			dataTable.Rows[i]["Age"] = data;

		}
	}

• 7.计数timer模拟更新

//timer封闭
	public class Repeater
	{
		private System.Threading.Timer _timer = null;
		public Repeater(Action<object> callback, object state)
		{
			TimerCallback tcb = (s) => callback(s);
			_timer = new System.Threading.Timer(tcb, state, 0, 5000);
		}
		public void Completed()
		{
			if (_timer!=null)
			{
				var timerDisposed = new ManualResetEvent(false);
				_timer.Dispose(timerDisposed);
				timerDisposed.WaitOne();
				timerDisposed.Dispose();
			}
		}
	}
	
	//计数timer
	Counter counter = new Counter();
	var re = new Repeater((a) =>
	{
		if (a is Counter ct)
		{
			RandomData();
			if (ct.Count == 5)
			{
				UpdateControl(label1, "5次任务执行结束");
				return;
			}

			ct.Count++;

			//CheckForIllegalCrossThreadCalls = false;
			//label1.Text = $"执行次数:{ct.Count}";
			var txt = $"执行次数:{ct.Count}";
			UpdateControl(label1, txt);


		}

	}, counter);	
//控件Invoke.不推荐使用CheckForIllegalCrossThreadCalls = false	
private void UpdateControl(Control ctl, string txt)
	{
		if (ctl != null && ctl.InvokeRequired)
		{
			ctl.Invoke((MethodInvoker)delegate
			{
				ctl.Text = txt;
			});
		}
	}