c# DataGridView实时刷新

【实例截图】

【核心代码】

using System;
using System.Data;
using System.Windows.Forms;

namespace AhDung.Demos
{
    public partial class Form1 : Form
    {
        DataTable _table;

        public Form1()
        {
            InitializeComponent();

            _table = new DataTable();
            _table.Columns.Add("Col1", typeof(string));
            _table.Columns.Add("Col2", typeof(string), "Col1 '_Modified'");//计算列

            _table.Rows.Add("aaa");
            _table.Rows.Add("bbb");

            //指定哪些列使用自定的单元格类
            dataGridView1.Columns["Column1"].CellTemplate = new DataGridViewTextBoxUnSelectableCell();
            
            dataGridView1.AutoGenerateColumns = false;
            dataGridView1.DataSource = _table;
        }

        //单元格键入时实时提交
        private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
        {
            if (dataGridView1.IsCurrentCellDirty)
            {
                dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
                (dataGridView1.CurrentRow.DataBoundItem as DataRowView).EndEdit();//连带数据源一起提交
            }
        }

    }

    //定义一个单元格承载控件
    public class TextBoxUnSelectableEditingControl : DataGridViewTextBoxEditingControl
    {
        protected override void WndProc(ref Message m)
        {
            if (m.Msg == 0xb1)//忽略EM_SETSEL消息
            {
                return;
            }
            base.WndProc(ref m);
        }
    }

    //定义一个单元格类，重写此类的承载控件类型
    public class DataGridViewTextBoxUnSelectableCell : DataGridViewTextBoxCell
    {
        public override Type EditType
        {
            get
            {
                return typeof(TextBoxUnSelectableEditingControl);
            }
        }
    }

}