c# - 如何在 C# 中使用进度条？

Question

我想使用 ProgressBar 并在 2 秒内将其从 100% 运行到 0%。我已经编写了以下函数，但它似乎无法正常运行。请帮忙!谢谢!

private async void progessbar()
{
    for (iValue = 100; iValue >= 0; iValue--)
    {
        pbTime.Value = iValue;
        await Task.Delay(20);
    }
}

Answer 1

如果你想流畅地动画你的进度条，你应该使用 Storyboard:

private void AnimateProgressBar()
{
    var storyboard = new Storyboard();

    var animation = new DoubleAnimation { Duration = TimeSpan.FromSeconds(2), From = 100, To = 0, EnableDependentAnimation = true };

    Storyboard.SetTarget(animation, this.ProgressBar);
    Storyboard.SetTargetProperty(animation, "Value");

    storyboard.Children.Add(animation);

    storyboard.Begin();
}