Windows应用程序正在加载数据负载. [英] Windows application loading loads of data.

问题描述

嘿，我只是在寻找一些建议，以哪种方式来处理我的应用程序中需要很长时间的特定任务.
好的，任务是上传大量数据，一次需要花费几分钟.我想做的是让用户在执行其他任务时继续执行单独的任务，我曾考虑过要放置背景工人和进度条，但是网上没有明确的简洁示例.无论如何，我对任何建议都持开放态度，对我们的帮助也非常感激.

Hey I''m just looking for a few suggestions as which way to handle a specific task in my application that takes a very long time.
Ok the task is to upload a large chunk of data which takes a couple of minutes at a time. What I want to do is let the user continue doing seperate tasks while this other task is taking place, I have thought about putting a backgroung worker and a progress bar but there are no clear concise examples on the net. Anyway im open to any suggestions and any help is very much apreciated.

推荐答案

后台工作人员非常非常容易做:
创建一个BackgroundWorker实例，并将其连接到几个事件:

A background worker is very, very easy to do:
Create a BackgroundWorker instance, and hook it to a couple of events:

private BackgroundWorker worker = new BackgroundWorker();
...
butDoMyTask.Enabled = false;
ShowProgress.Visible = true;
worker.DoWork += new DoWorkEventHandler(worker_DoWork);
worker.WorkerReportsProgress = true;
worker.ProgressChanged += new ProgressChangedEventHandler(worker_ProgressChanged);
worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(worker_RunWorkerCompleted);
worker.RunWorkerAsync();

然后在事件中，您只需要显示进度，完成实际工作并在完成时进行标记即可:

Then in the events, you just have to show progress, do the actual work, and mark when it completes:

void worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
    {
    butDoMyTask.Enabled = true;
    ShowProgress.Visible = false;
    }

void worker_ProgressChanged(object sender, ProgressChangedEventArgs e)
    {
    ShowProgress.Value = e.ProgressPercentage;
    }

void worker_DoWork(object sender, DoWorkEventArgs e)
    {
    for (int i = 0; i <= 100; i += 10)
        {
        Thread.Sleep(1000);
        worker.ReportProgress(i);
        }
    }

您是对的！使用后台工作者有一个简单的步骤:
1.启动进度栏
2. BackgroundWorker1.RunWorkerAsync()[您想放置的位置]
3.在BackgroundWorker1_DoWork事件上，执行数据加载操作.
4.在BackgroundWorker1_RunWorkerCompleted事件上，停止进度栏.
注意:请勿交叉穿线.会报错.

You were right! Use background worker there is simple step:
1. Start progress bar
2. BackgroundWorker1.RunWorkerAsync() [where evere you want to put]
3. On BackgroundWorker1_DoWork Event, do the data loading thing.
4. On BackgroundWorker1_RunWorkerCompleted event , stop Progress bar.
Caution: Don’t go cross thread. It will give error.

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