我正在创建一个调用事件的程序。这是代码
public void Form1_Load(Object sender, EventArgs e)
{
Thread thread = new Thread(new ThreadStart(getData));
thread.IsBackground = true;
thread.Start();
Thread.CurrentThread.Name = "Main";
}
private void getData()
{
try
{
int count = 1;
opcServer.Connect("OPCTechs.SiemensNet30DA", "");
Thread.CurrentThread.Name = "Child";
opcGroup = opcServer.OPCGroups.Add("MP");
opcGroup.DataChange += new DIOPCGroupEvent_DataChangeEventHandler(opcGroup_DataChange);
//Get First String
for (int i = 40; i <= 47; i++)
opcGroup.OPCItems.AddItem("D104.B" + i, count++);
//Get Second String
for (int i = 80; i <= 91; i++)
opcGroup.OPCItems.AddItem("D104.B" + i, count++);
opcGroup.OPCItems.DefaultIsActive = true;
opcGroup.UpdateRate = 1000;
opcGroup.IsSubscribed = opcGroup.IsActive;
}
catch (Exception exc)
{
MessageBox.Show(exc.Message, "Alert");
}
}
private void opcGroup_DataChange(int TransactionID, int NumItems, ref Array ClientHandles, ref Array ItemValues, ref Array Qualities, ref Array TimeStamps)
{
try
{
MessageBox.Show(Thread.CurrentThread.Name,"Alert");
string temp = "";
int count = 1;
for (count = 1; count <= NumItems; count++)
{
if (Convert.ToInt32(ClientHandles.GetValue(count)) == 47)
temp += ItemValues.GetValue(count).ToString();
}
Textbox1.Text = temp.ToString();
temp = "";
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Alert");
}
}
在这种语法MessageBox.Show(Thread.CurrentThread.Name,"Alert");
中,我期待显示,Child
因为它是从子线程调用的,但它正在显示Main
。为什么事件在主线程中运行而不在子线程中运行?