我需要将两个变量一起添加到用于C＃编程项目的消息框/文本框

Question

hey all so I'm having a hard time with my code when trying to display in a textbox .. testing goes well till i try something along the lines of a start time being a higher number than the end time when i do it displays something like this on my program -04-30 but on the example program it shows -0430.

How can i get it to display properly?

My last three lines of code read. (this is for a programming project for my college class. i have my form program i have developed and then an example one. for the program it asks to give a start time, and end time. and the program calculates a new arrival time due to construction in the area(which makes the original trip 25% longer)

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);

entire code is; `// Declare Constants 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

For a quick solution you should try doing this in the textBox assignation:

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

this is the test i did to check if this time worked:

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

只需保留第一个值的符号，并始终使用第二个值的绝对值？

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