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） 分类： .NET 2014-05-12 03:03 836人阅读 评论(0) 收藏

#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