转换日历 [英] converting calendars

问题描述

我使用这些代码将公历转换为儒略历，没有问题.

I use these codes to convert Gregorian calendar to Julian calendar and there's no problem.

private void button1_Click(object sender, EventArgs e)
    {
        JulianCalendar juli = new JulianCalendar();
        DateTime dt = Convert.ToDateTime(textBox1.Text);
        int day = juli.GetDayOfMonth(dt);
        int month = juli.GetMonth(dt);
        int year = juli.GetYear(dt);
        string s = string.Format("{0}/{1}/{2}", month, day, year);
        textBox2.Text = s;
    }

它给了我 Julian 日期时间，但是当我想将它再次转换为具有该日期时间的公历时，它不起作用.我使用以下代码将儒略历转换为公历.有什么问题?

It gives me the Julian date time but when i want to convert it again to Gregorian calendar with exactly that date time it won't work. i use these following codes for converting Julian calendar to Gregorian calendar. what's the problem?

 private void button2_Click(object sender, EventArgs e)
    {
        string juli = textBox3.Text;
        string[] parts = juli.Split('/', '-');
        JulianCalendar jul = new JulianCalendar();
        DateTime dta = jul.ToDateTime(Convert.ToInt32(parts[0]), Convert.ToInt32(parts[1]), Convert.ToInt32(parts[2]), 0, 0, 0, 0);
        string sta = dta.ToShortDateString();
        textBox4.Text = sta;
    }

推荐答案

问题出在参数的顺序上.应该是(在 button2_Click 事件中)

the problem is in the order of the paremeters. It should be (in button2_Click event)

DateTime dta = juli2.ToDateTime(Convert.ToInt32(parts[2]), Convert.ToInt32(parts[0]), Convert.ToInt32(parts[1]), 0, 0, 0, 0);

因为 ToDateTime 方法的签名如下:

because the signature of ToDateTime method is the following:

public virtual System.DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond)

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