我记得,多年前(2005年) 我在手法中使用背景工作者,但没有为此使用一个视觉部分,但我可以记住,(很幸运的是,我非常忘却,在我停止使用之后很快忘记了一切。) 也许我正在延长背景工作班。 您能够把这种方式与利用背景工作者的良好范例联系起来?
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
我记得,多年前(2005年) 我在手法中使用背景工作者,但没有为此使用一个视觉部分,但我可以记住,(很幸运的是,我非常忘却,在我停止使用之后很快忘记了一切。) 也许我正在延长背景工作班。 您能够把这种方式与利用背景工作者的良好范例联系起来?
此处是利用背景工作人员的最低步骤:
- Instantiate BackgroundWorker and handle the DoWork event.
- Call RunWorkerAsync, optionally with an object argument.
之后,该动议即告启动。 转交RonWorkerAsync的任何论点都将通过活动论证的“财产”转交DoWorks的活动手。 例如:
class Program
{
static BackgroundWorker _bw = new BackgroundWorker();
static void Main()
{
_bw.DoWork += bw_DoWork;
_bw.RunWorkerAsync ("Message to worker");
Console.ReadLine();
}
static void bw_DoWork (object sender, DoWorkEventArgs e)
{
// This is called on the worker thread
Console.WriteLine (e.Argument); // writes "Message to worker"
// Perform time-consuming task...
}
}
What is the use of default keyword in C#? Is it introduced in C# 3.0 ?
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