在处理先前加载的数据时从数据库加载新行以进行缓冲

Question

I'm trying to retrieve, process and send data from database to a web service.

Now I send data concurrently using Parallel.ForEach like this:

while (true)
{
    var ctrl = new DataController();
    var list = ctrl.GetData();

    if (list == null)
    {
        SaveLogFile("No record retrived", @"C:\log\try-sending-log-");
        continue;
    }
    Parallel.ForEach(list, SendToWebService);
}

How can i load and buffer new rows during Parallel.ForEach works on sending data?

Answer 1

Parallel.ForEach will wait until all task will be executed. if you want to start is async than wrap the Parallel.ForEach(list, SendToWebService); in Task.Factory.StartNew but please take additionaly care of life circle of all tasks that will be triggered by the StartNew