我需要將兩個變量一起添加到用於C＃編程項目的消息框/文本框

Question

嘿，所以嘗試在textbox顯示代碼時，我遇到了textbox 。.測試一直很好，直到我嘗試按開始時間大於結束時間的次數顯示某些內容時，在我的程序-04-30上是這樣的，但是在示例程序上它顯示為-0430。

我如何使其正確顯示？

我的最后三行代碼已讀。 （這是針對我大學課程的一個編程項目。我已經開發了我的表單程序，然后是一個示例。對於該程序，它要求給出開始時間和結束時間。該程序計算出新的到達時間到該地區的建築（這會使原始行程延長25％）

int endTimeHours = (int) totalTimeMins / DIVISOR_SIXTY;
int endTimeMins = (int)totalTimeMins - (endTimeHours * DIVISOR_SIXTY);

//在文本框中顯示答案，供用戶查看和理解。

textBoxNewArrival.Text = string.Format("{0:d2}" + "{1:d2}", endTimeHours, endTimeMins);

整個代碼是; `//聲明常量const int HUNDRED = 100，DIVISOR_SIXTY = 60; const double CONSTRUCTION = 1.25;

        //get start time from user
        int startTime = int.Parse(textBoxStart.Text);

        //get end time from user
        int endTime = int.Parse(textBoxEnd.Text);

        //separate and convert to hours and minutes for start time
        int hoursStart = startTime / HUNDRED;
        int minsStart = startTime % HUNDRED;
        int totalMinutesStart = (hoursStart * DIVISOR_SIXTY) + minsStart;

        //separate and convert to hours and minutes for end time
        int hoursEnd = endTime / HUNDRED;
        int minEnd = endTime % HUNDRED;
        int totalMinutesEnd = (hoursEnd * DIVISOR_SIXTY) + minEnd;

        //find total duration by subtracting total end times in minutes from total start time in minutes
        int totalDuration = totalMinutesEnd - totalMinutesStart;

        //take the totalDuration or time between start and end and multiply by 1.25 for construction time.
        double construction = totalDuration * CONSTRUCTION;

        //take totalmintuesstart from begining and add construction.
        double totalTimeMins = totalMinutesStart + construction;

        //find and convert the answers into hours and minutes total
        int endTimeHours = (int) totalTimeMins / DIVISOR_SIXTY;
        int endTimeMins = (int) totalTimeMins - (endTimeHours * DIVISOR_SIXTY);




        //display answer in textbox for user to see and understand.
        textBoxNewArrival.Text = string.Format("{0:d2}" + "{1:d2]", endTimeHours, endTimeMins.ToString().Remove(0, 1));          
        `

Answer 1

為了快速解決方案，您應該嘗試在textBox分配中執行以下操作：

textBoxNewArrival.Text = string.Format("{0:d2}" + "{1:d2}", int.Parse(endTimeHours, endTimeMins.ToString().Remove(0,1)));

這是我所做的測試，目的是檢查這次是否有效：

class Forms
{
    public static void Main(string[] args)
    {
        int  endTimeHours = -4;;
        int endTimeMins = -30;
        string temp = string.Format("{0:d2}" + "{1:d2}", endTimeHours, int.Parse(endTimeMins.ToString().Remove(0, 1)));
        Console.WriteLine(temp);
    }
}

Answer 2

只需保留第一個值的符號，並始終使用第二個值的絕對值？

textBoxNewArrival.Text = string.Format("{0:d2}" + "{1:d2}", endTimeHours, Math.Abs(endTimeMins));