BackgroundWorker应用问题
第一个问题:
如果我事先不知道要定义多少个BackgroundWorker
必须要通过读取config.xml来定义BackgroundWorker的数量
比如config.xml内容为下
task1
task2
task3
通过XML读取这个任务,所以要定义三个BackgroundWorker要如何定义?第二个问题:
我要执行这三个任务并行处理,又要怎么办,而不是按顺序来执行之?
也就是task1,task2,task3三个一起执行,不管有没有执行结束?第三个问题:
如何重载Background使得在BackgroundWoker的OnDoWorker()事件中新加入一个参数?
第四个问题:还没想好...想好了再continue...
Thanks!!!
private BackgroundWorker worker;
worker = new BackgroundWorker();
worker.WorkerReportsProgress = true;
worker.WorkerSupportsCancellation = true;
worker.DoWork += new DoWorkEventHandler(worker_DoWork);
worker.ProgressChanged += new ProgressChangedEventHandler(worker_ProgressChanged);
worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(worker_RunWorkerCompleted);
第一个问题:
如果我事先不知道要定义多少个BackgroundWorker
必须要通过读取config.xml来定义BackgroundWorker的数量
比如config.xml内容为下
task1
task2
task3
通过XML读取这个任务,所以要定义三个BackgroundWorker要如何定义?第二个问题:
我要执行这三个任务并行处理,又要怎么办,而不是按顺序来执行之?
也就是task1,task2,task3三个一起执行,不管有没有执行结束?第三个问题:
如何重载Background使得在BackgroundWoker的OnDoWorker()事件中新加入一个参数?
第四个问题:还没想好...想好了再continue...
Thanks!!!
private BackgroundWorker worker;
worker = new BackgroundWorker();
worker.WorkerReportsProgress = true;
worker.WorkerSupportsCancellation = true;
worker.DoWork += new DoWorkEventHandler(worker_DoWork);
worker.ProgressChanged += new ProgressChangedEventHandler(worker_ProgressChanged);
worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(worker_RunWorkerCompleted);
http://blog.csdn.net/zhzuo/archive/2008/07/23/2699305.aspx
实现增强的异步任务执行组件
http://blog.csdn.net/zhzuo/archive/2008/07/23/2699847.aspx 通过多线程为基于 .NET 的应用程序实现响应迅速的用户
http://www.microsoft.com/china/MSDN/library/enterprisedevelopment/softwaredev/misMultithreading.mspx
为Windows应用创建简单的异步调用模式
http://www.microsoft.com/china/MSDN/library/architecture/AsynCallPattern.mspx
public void Start()
{
string[] config = { "task1", "task2", "task3" };
foreach (string task in config) //<--- 1
{
BackgroundWorker worker = new BackgroundWorker();
worker.DoWork += DoWork;
worker.RunWorkerAsync(task); //<--- 2,3
}
} void DoWork(object sender, DoWorkEventArgs e)
{
string taskDescription = e.Argument as string; //<--- 3
while (true)
{
Console.WriteLine(taskDescription);
System.Threading.Thread.Sleep(500);
}
}
http://www.cnblogs.com/artech/archive/2008/07/30/1256144.html