Winform异步解决窗体耗时操作（Action专门用于无返回值，Func专门用于有返回值）

来源：互联网发布：mac五国循环重启编辑：程序博客网时间：2024/06/03 13:55
#region 调用timer控件实时查询开关机时间private void timer1_Tick(object sender, EventArgs e){    string sql = "SELECT startTime,endTime,AMTusername,AMTpassword,AMTip FROM AmtTiming at, AmtComputer ac WHERE at.cid = ac.id";    List<TimingBean> list = new Database().getRS(sql);    if (list != null && list.Count > 0)    {        foreach (TimingBean tb in list)        {            string startTime = tb.StartTime;            string endTime = tb.EndTime;            string AMTusername = tb.AMTUsername;            string AMTpassword = tb.AMTPassword;            string AMTip = tb.AMTIp;            string now = DateTime.Now.ToShortTimeString();            if (startTime == now)            {                Action<string, string, string, bool> action = new Action<string, string, string, bool>(StartOrShutDown);                action.BeginInvoke(AMTusername, AMTpassword, AMTip, true, null, null);            }            else if (endTime == now)            {                Action<string, string, string, bool> action = new Action<string, string, string, bool>(StartOrShutDown);                action.BeginInvoke(AMTusername, AMTpassword, AMTip, false, null, null);            }        }    }}private void StartOrShutDown(string user, string pass, string ip, bool isStart){    AmtRemoteAControl amtControl = new AmtRemoteAControl();    if (isStart)    {        //如果开机不成功，则让其再执行一次        try        {            amtControl.SendPowerOnCmd(ip, user, pass);        }        catch        {            try            {                amtControl.SendPowerOnCmd(ip, user, pass);            }            catch (Exception e)            {                MessageBox.Show("终端设备：" + ip + "自动开机失败。异常信息：" + e.Message);            }        }    }    else    {        //如果关机不成功，则让其再执行一次        try        {            amtControl.SendPowerOffCmd(ip, user, pass);        }        catch        {            try            {                amtControl.SendPowerOffCmd(ip, user, pass);            }            catch (Exception e)            {                MessageBox.Show("终端设备：" + ip + "自动关机失败。异常信息：" + e.Message);            }        }    }}#endregion#region 开关机、重启 "查询按钮"bool has = false;private void button1_Click(object sender, EventArgs e){        //获得省份索引和某个市的文本    int index = this.comboBox1.SelectedIndex;    if (0 == index)    {        MessageBox.Show("请选择区域！"); return;    }    else    {        #region 获取选择的区域        this.buttonStart.Enabled = false;        this.buttonShutdown.Enabled = false;        this.buttonReStart.Enabled = false;        string place = this.comboBox1.Text;              //省        int city_index = this.comboBox2.SelectedIndex;//市        string county = this.comboBox3.Text;        //区县        //如果城市有选择        if (city_index != 0)        {            place = place + this.comboBox2.Text;        }        //如果区县有选择        if ((null != county) && (!((string.Empty).Equals(county))) && (!"--请选择--".Equals(county)))        {            place = place + county;        }        #endregion        try        {            #region 将查到的设备信息绑定到数据表格            //将查到的设备信息绑定到数据表格            //string sql = "SELECT '' as '选择',cp.en '设备编号',cp.ip '设备IP',cp.place '设备地址', cp.AMTusername '用户名',cp.AMTpassword '密码',cp.AMTip 'IP',cp.id '主键',cp.status '状态' FROM AmtComputer cp WHERE cp.place like '%" + place + "%'";            string sql = "SELECT cp.en '设备编号',cp.ip '设备IP',cp.place '设备地址', cp.AMTusername '用户名',cp.AMTpassword '密码',cp.AMTip 'IP',cp.id '主键',cp.status '状态' FROM AmtComputer cp WHERE cp.place like '%" + place + "%'";            Database db = new Database();            DataSet ds = db.getDS(new DataSet(), sql);            DataTable table = ds.Tables["data"];            this.bindingSource1.DataSource = table;            this.dataGridView1.DataSource = this.bindingSource1;            if(!has)            {                //添加复选框                DataGridViewCheckBoxColumn box = new DataGridViewCheckBoxColumn();                box.HeaderText = "选择";                box.Name = "选择";                this.dataGridView1.Columns.Insert(0, box);                has = true;            }            //设置部分列为不可见状态            this.dataGridView1.Columns["用户名"].Visible = false;//AMT用户名            this.dataGridView1.Columns["密码"].Visible = false;//AMT密码            this.dataGridView1.Columns["IP"].Visible = false;//AMT设备ip            this.dataGridView1.Columns["主键"].Visible = false;//主键            this.dataGridView1.Columns["选择"].Width = 60;//复选框            this.dataGridView1.Columns["设备编号"].Width = 100;//设备编号            this.dataGridView1.Columns["设备IP"].Width = 140;//设备IP            this.dataGridView1.Columns["设备地址"].Width = 160;//设备地址            this.dataGridView1.Columns["状态"].Width = 180;//状态            #endregion            //this.labelState.Text = "正在获取设备状态，请稍后...";            //this.Refresh();            int count = table.Rows.Count;            for (int i = 0; i < count; i++)            {                string username = table.Rows[i]["用户名"].ToString(); //amt用户名                string password = table.Rows[i]["密码"].ToString(); //amt密码                string host = table.Rows[i]["IP"].ToString();     //amtIP地址                this.dataGridView1.Rows[i].Cells["状态"].Value = "正在获取终端状态...";                this.dataGridView1.Rows[i].Cells["状态"].Style.ForeColor = Color.Red;                this.dataGridView1.Rows[i].Cells["状态"].Style.Font = new Font("宋体", 11F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));                Func<int, string, string, string, string> func = new Func<int, string, string, string, string>(getPowerState);                func.BeginInvoke(i, username, password, host,                                                        (result) =>                                                        {                                                            string state = func.EndInvoke(result);                                                            this.BeginInvoke(new Action<string>(setStateValue), state);                                                        }, null);            }        }        catch (Exception ee) { MessageBox.Show(ee.Message); }    }} private void setStateValue(string state){    string[] array = state.Split(',');    this.dataGridView1.Rows[Convert.ToInt16(array[0])].Cells["状态"].Value = array[1];    this.buttonStart.Enabled = true;    this.buttonShutdown.Enabled = true;    this.buttonReStart.Enabled = true;}#endregion#region 获取amt设备的当前电源状态private string getPowerState(int index,string username, string password, string host){       ConnectionInfo info = new ConnectionInfo(host, username, password, false,                                           string.Empty, ConnectionInfo.AuthMethod.Digest,                                           null, null);    DotNetWSManClient wsman = new DotNetWSManClient(info);    RemoteControlApi api = new RemoteControlApi(wsman);    try    {        CIM_AssociatedPowerManagementService service = api.GetCurrentPowerState(true);        ushort state = service.PowerState;        if (state == 2)        {            return index + ",开机";        }        else if (state == 8)        {            return index + ",关机";        }    }    catch    {        try        {            CIM_AssociatedPowerManagementService service = api.GetCurrentPowerState(false);            ushort state = service.PowerState;            if (state == 2)            {                return index + ",开机";            }            else if (state == 8)            {                return index + ",关机";            }        }        catch (Exception e2)        {            return index + "," + e2.Message;        }    }    return index + ",未知";}#endregion
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