延迟增量数(C#)

Question

当我点击它时,我有一个按钮,它将文本块中的数字增加一个.但我想用几毫秒的等待来显示增量.

XAML

<TextBlock Name="DisplayTextBlock" FontSize="50" HorizontalAlignment="Center" VerticalAlignment="Top"/>

<Button Name="CountingButton" Height="80" Width="150" HorizontalAlignment="Center" VerticalAlignment="Bottom" Click="CountingButton_Click"/>

C#

int i = 0;

private void CountingButton_Click(object sender, RoutedEventArgs e)
{            
    do
    {
        i++;

        DisplayTextBlock.Text = i.ToString();
    }
    while(//something is on)
}

那么我怎么能添加等待......

Answer 1

将async关键字添加到方法声明中.并添加Task.Delay.

private async void CountingButton_Click(object sender, RoutedEventArgs e)
{       
    i++;
    await Task.Delay(200);
    DisplayTestBlock.Text = i.ToString();
}