在BackgroundWorker中的Winform上更新状态 [英] Updating a status on a Winform in BackgroundWorker

问题描述

我有一个多步骤的BackgroundWorker流程.我使用选取框进度栏，因为这些步骤中的几个步骤是在iSeries服务器上运行的，因此没有确定百分比的好方法.我设想的是在每个步骤之后都带有更新的标签.您如何建议在Winform上更新标签以反映每个步骤?

I have a multi-step BackgroundWorker process. I use a marquee progress bar because several of these steps are run on a iSeries server so there isn't any good way to determine a percentage. What I am envisioning is a label with updates after every step. How would you recommend updating a label on a winform to reflect each step?

我想补充一点.我通过iSeries(或IBM i或AS/400或运行OS/400 ... er ... i5/OS的中型计算机)上的存储过程调用了一些CL和RPG程序.年复一年)).

Figured I would add a bit more. I call some CL and RPG programs via a stored procedure on an iSeries (or IBM i or AS/400 or a midrange computer running OS/400... er... i5/OS (damn you IBM for not keeping the same name year-to-year)).

无论如何，我必须等到该步骤完全完成后，才能继续在Winform端进行操作.我当时正在考虑将反馈信息发送给用户，并提供主要步骤.

Anyway I have to wait until that step is fully complete before I can continue on the winform side. I was thinking of sending feedback to the user giving the major steps.

1. 将数据转储到iSeries
2. 运行月底
3. 创建报告
4. 上传最终结果

我可能一开始就应该给出这个.对于那个很抱歉.我会尽量保持问题的一般性，以供其他人以后使用，而不是我的特定任务.

I probably should have given this in the beginning. Sorry about that. I try to keep my questions general enough for others to make use of later rather than my specific task.

推荐答案

从本质上讲，这是后台工作人员的要点之一.根据您的算法，使用ProgressBar并仅确定进度.

This is one of the points of a background worker in essence. Use a ProgressBar and just determine how far along the progress is, according to your algorithm.

(如前所述，如果通过率达到10％，则发送10；如果通过率达到50％，则发送50)

(As has been mentioned, if they're 10% through, send 10, if they're 50% through, send 50)

使用BackgroundWorker bgWrk

Using a BackgroundWorker bgWrk

添加以下事件:

bgWrk.ProgressChanged += new System.ComponentModel.ProgressChangedEventHandler(bgWrk_ProgressChanged);
// Note: This method is invoked on the UI thread

void bgWrk_ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e)
{
    // Add progress to whatever UI element needs updating. The below simply uses a progress bar.
    prog.Value = e.ProgressPercentage;
}

在您认为值得用户更新的每个主要步骤之后，请执行以下操作:

After each major step that you think deserves a user updates do the following:

bgWrk.ReportProgress(intValue);

一些注意事项:

• 您也可以在ReportProgress()方法中传递Object，因此您可以使用字符串对象等更新标签，但是进度条仍然是保持"的通用符号，我在做什么"

• You can pass an Object as well in the ReportProgress() method, so you would be able to update a label with a string object etc, however a progress bar is still the universal symbol of "hold on, i'm doing something"

如果有不确定的轮询，并且使用的是ProgressBar，请尝试将其用作不确定的ProgressBar或微调器等. WPF具有内置属性，可以使进度条不确定，这很有用.

If you have any indeterminate polling, and you are using a ProgressBar, try use it as an Indeterminate ProgressBar, or a spinner or such. WPF has a built in property to make a progress bar indeterminate which is useful.

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