c# - 准时双排版

Question

如何设置TotalHours是双格式，或者我需要做什么才能得到 txtBoxMonatstotal 中的结果由于93.3 .
这是我的代码:

private void calendar1_MonthChanged(object sender, EventArgs e)
{
    DateTime start = new DateTime(calendar1.CurrentDate.Year, calendar1.CurrentDate.Month, 1);
    DateTime stop = new DateTime(calendar1.CurrentDate.Year, calendar1.CurrentDate.Month, 1).AddMonths(1).AddDays(-1);
    int numberOfWorkDays = GetNumberOfWorkingDays(start, stop);

    double shouldWorkPerMonth = tag_durschnit * numberOfWorkDays;
    double workedPerMonth = workingHours.Where(x => x.Key.Date.Year == start.Year && x.Key.Month == start.Month).Sum(x => x.Value.TotalHours);
    double saldo = workedPerMonth - shouldWorkPerMonth;

    txtBoxMonatstotal.Text = workedPerMonth.ToString();
    txtBoxSollzeit.Text = shouldWorkPerMonth.ToString();
    txtBoxSaldo.Text = saldo.ToString();

}

当前结果如下所示:



感谢您的帮助

Answer 1

您需要 round先打号码再调用ToString在上面

txtBoxMonatstotal.Text = System.Math.Round(workedPerMonth, 1).ToString();

Round 中的第二个参数决定

the number of fractional digits in the return value.