如何更新进度条，因此增加了顺利？ [英] How to update a progress bar so it increases smoothly?

问题描述

我使用WPF（C＃）的进度条来形容这个过程的进度

I'm using progress bar of WPF (C#) to describe the process's progress.

我的算法如下：

DoSomethingCode1();
ProgressBar.SetPercent(10); // 10%
DoSomethingCode2();
ProgressBar.SetPercent(20); // 20%

...

DoSomethingCode10();
ProgressBar.SetPercent(100); // 100%

这是确定的，但它将使进度条不相继式。

It's ok, but it will make the progress bar was not sequent.

有人能告诉我一些建议，使进度条轻轻地更新？

Someone can tell me some suggestions that make the progress bar is updated softly?

推荐答案

您可以调用 BeginAnimation 方法动画的进度 值属性。在我下面的例子中，我使用了 DoubleAnimation是

You could call the BeginAnimation method to animate the ProgressBar's Value property. In my example below, I used a DoubleAnimation.

我创建了一个发生在所需的百分比扩展方法：

I created an extension method that takes in the desired percentage:

public static class ProgressBarExtensions
{
    private static TimeSpan duration = TimeSpan.FromSeconds(2);

    public static void SetPercent(this ProgressBar progressBar, double percentage)
    {
        DoubleAnimation animation = new DoubleAnimation(percentage, duration);
        progressBar.BeginAnimation(ProgressBar.ValueProperty, animation);          
    }
}

所以在你的代码，你可以简单地调用：

So in your code you could simply call:

myProgressBar.SetPercent(50);

这样做，根本出平滑过渡，所以它看起来更好。引用另一个回答：我们的想法是，一​​个进度条报告的实际进展的 - 没有时间已过。它不打算成为一个动画，仅仅表明的事情正在发生的。但是，进度条的默认样式确实有这可能意味着工作发生脉动的效果。

Doing this simply smooths out the transition so it looks nicer. To quote another answer: "The idea is that a progress bar reports actual progress - not time elapsed. It's not intended to be an animation that just indicates something is happening." However, the default style of the progress bar does have a pulsating effect which can imply work is happening.

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