c# winform来显示进程和杀死进程

主要form代码如下：

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

namespace ProcessInfo
{
    public partial class FrmProcessInfo : Form
    {
        public FrmProcessInfo()
        {
            InitializeComponent();
            this.timer1.Enabled = true;
            this.timer1.Interval = 100;
        }

//全局进程数组
Process[] processes;

//dataGridView的数据源
DataTable dt = new DataTable();

        //加载进程信息
        private void button1_Click(object sender, EventArgs e)
        {

            //给datatable添加3个列
            dt.Columns.Add("ID", typeof(Int32));
            dt.Columns.Add("进程名", typeof(String));
            dt.Columns.Add("进程分配内存", typeof(String));

            //获得所有进程
            processes = System.Diagnostics.Process.GetProcesses();
            foreach (Process p in processes)
            {
                DataRow dr = dt.NewRow();
                dr[0] = p.Id;
                dr[1] = p.ProcessName;
                dr[2] = p.PrivateMemorySize64/1024+" KB";

                dt.Rows.Add(dr);
            }

            //绑定进程信息到dataGridView
            this.dataGridView1.DataSource = dt;
            this.textBox1.Text="共有"+processes.Length+"个进程！！";

}

        private void timer1_Tick(object sender, EventArgs e)
        {
            this.dataGridView1.Refresh();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            // MessageBox.Show(this.dataGridView1.CurrentRow.Cells[0].Value.ToString());
            foreach (Process p in processes)
            {
                if (p.Id == Convert.ToInt32(this.dataGridView1.CurrentRow.Cells[0].Value))
                {
                    p.Kill();
                    MessageBox.Show("杀死" + p.ProcessName + "成功");
                    break;
                }
            }
            processes = System.Diagnostics.Process.GetProcesses();
            dt.Clear();
            this.dataGridView1.DataSource = dt;
            foreach (Process p in processes)
            {
                DataRow dr = dt.NewRow();
                dr[0] = p.Id;
                dr[1] = p.ProcessName + ".exe";
                dr[2] = p.PrivateMemorySize64 / 1024 + " KB";
                dt.Rows.Add(dr);
            }
            this.dataGridView1.DataSource = dt;
            this.textBox1.Text = "共有" + processes.Length + "个进程！！";
        }
    }
}