本文主要是介绍线程调用BeginInvoke,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
线程异步调用
Thread objThread = new Thread(new ThreadStart(delegate
{
Dispatcher.BeginInvoke(new Action(() =>--解决调用线程必须为 STA,因为许多 UI 组件都需要的问题
{
ReportViewer rp = ReportingServiceHelper.GetReportView(reportName, null, true, true);
rp.RefreshReport();
CurrentView = ReportingServiceHelper.GetFormHost<ReportViewer>(rp);
}));
}));
objThread.Start();
http://blog.csdn.net/yl2isoft/article/details/11711833
http://www.cnblogs.com/nokiaguy/archive/2008/07/13/1241817.html
http://blog.csdn.net/razorluo/article/details/7814670
http://www.111cn.net/net/160/42786.htm
http://www.sufeinet.com/thread-3707-1-1.html
调用控件的BeginInvoke实现异步
/// <summary>
/// 线程调用BeginInvoke
/// </summary>
private void ThreadBeginInvoke()
{
listBox1.Items.Add("--begin--");
new Thread(() =>
{
Thread.CurrentThread.Name = "ThreadBeginInvoke";
Thread.Sleep(10000);
string temp = "Before!";
listBox1.BeginInvoke(new Action(() =>
{
this.listBox1.Items.Add(temp + ":" + Thread.CurrentThread.Name);
}));
temp += "After!";
}).Start();
Thread.Sleep(1000);
listBox1.Items.Add("--end--");
}
委托实现异步
public delegate int AddOp(int x, int y);
class Program
{
static void Main(string[] args)
{
Console.WriteLine("******* 委托异步线程 两个线程“同时”工作 *********");
//显示主线程的唯一标示
Console.WriteLine("调用Main()的主线程的线程ID是:{0}.", Thread.CurrentThread.ManagedThreadId);
//将委托实例指向Add()方法
AddOp pAddOp = new AddOp(Add);
//开始委托次线程调用。委托BeginInvoke()方法返回的类型是IAsyncResult,
//包含这委托指向方法结束返回的值,同时也是EndInvoke()方法参数
IAsyncResult iftAR = pAddOp.BeginInvoke(10, 10, null, null);
Console.WriteLine(""nMain()方法中执行其他任务........"n");
int sum = pAddOp.EndInvoke(iftAR);
Console.WriteLine("10 + 10 = {0}.", sum);
Console.ReadLine();
}
//求和方法
static int Add(int x, int y)
{
//指示调用该方法的线程ID,ManagedThreadId是线程的唯一标示
Console.WriteLine("调用求和方法 Add()的线程ID是: {0}.", Thread.CurrentThread.ManagedThreadId);
//模拟一个过程,停留5秒
Thread.Sleep(5000);
int sum = x + y;
return sum;
}
}
}
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