C# 将多个文本框的时间加在一起

Question

我正在尝试将单圈时间加在一起，但我首先必须检查文本框中是否有值，然后再继续。我该怎么做呢？单圈时间是这样记录的:01:29:30

这是我的代码:

try
{
    TimeSpan Diff1 = TimeSpan.Parse(lap1TimeTextBox.Text);
    TimeSpan Diff2 = TimeSpan.Parse(lap2TimeTextBox.Text);
    TimeSpan Diff3 = TimeSpan.Parse(lap3TimeTextBox.Text);
    TimeSpan Diff4 = TimeSpan.Parse(lap4imeTextBox.Text);
    TimeSpan Diff5 = TimeSpan.Parse(lap5TimeTextBox.Text);
    TimeSpan Diff6 = TimeSpan.Parse(lap6TimeTextBox.Text);
    TimeSpan Diff7 = TimeSpan.Parse(lap7TimeTextBox.Text);
    TimeSpan Diff8 = TimeSpan.Parse(lap8TimeTextBox.Text);
    TimeSpan Diff9 = TimeSpan.Parse(lap9TimeTextBox.Text);
    TimeSpan Diff10 = TimeSpan.Parse(lap10TimeTextBox.Text);
    TimeSpan Total = Diff1 + Diff2 + Diff3 + Diff4 + Diff5 + Diff6 + diff7 + Diff8 + Diff9 + Diff10;
    fullTimeTextBox.Text = Total.ToString();
}
catch (Exception ex)
{
    MessageBox.Show(ex.ToString());
}

Answer 1

我会将所有列表框放在一个数组中，并遍历它们，以尽量减少代码的重复:

   TextBox[] boxes = { lap1TimeTextBox, lap2TimeTextBox, lap3TimeTextBox }; // etc
   // Get boxes with a value
   var filledBoxes = boxes.Where(b => !string.IsNullOrWhiteSpace(b.Text)); 

   // Extract timings
   var times = filledBoxes.Select(b => TimeSpan.Parse(b.Text));

   // Calculate the sum, use ticks, because Sum might not work on TimeSpan directly
   var sum = new TimeSpan(times.Sum(time => time.Ticks));

您可以在一行中执行此操作，但这会降低代码的可读性。