在Windows Form Visual Studio 2010中将图形的X轴除以数周

Question

我想在图表上显示一年（2013-14）的数据，并希望在几周（约52列）的windows窗体Visual Studio 2010中破坏我的x轴。请告诉我如何设置它。

Answer 1

The code below

• fills a Chart Series with one point per day for a given year
• sets the Y-values to random test value
• will either:
  • show one date every 7 days
  • or show the week number for the frist day of each week

Please note: The week number can be calculated in various ways, depending on the culture info on your machine. If you need, you can always set the values of CalendarWeekRule and FirstDayOfWeek to the ones you actually want.

---

using System.Windows.Forms.DataVisualization.Charting;
using System.Globalization;

private void setChart(int Year)
{

    bool showAsDate = true;
    var s = new Series(year.ToString() );
    s.ChartType = SeriesChartType.Column;
    var d = new DateTime(year, 01, 01);
    int weekday = (int)d.DayOfWeek;
    int maxDays = new DateTime(year, 12, 31).DayOfYear;

    Random R = new Random();

    for (int i = 0; i < maxDays ; i++)
    {
        s.Points.AddXY(d.AddDays(i), R.Next(100) - 50);
    }

    chart1.Series[0].Points.Clear();
    chart1.Series.Clear();
    chart1.Series.Add(s);

    if (showAsDate )
    {
        chart1.Series[0].XValueType = ChartValueType.DateTime;
        chart1.ChartAreas[0].AxisX.LabelStyle.Format = "MM-dd";
        chart1.ChartAreas[0].AxisX.Interval = 7;
        chart1.ChartAreas[0].AxisX.IntervalType = DateTimeIntervalType.Days;
        chart1.ChartAreas[0].AxisX.IntervalOffset = 0;
    }
    else
    {
        DateTimeFormatInfo dfi = DateTimeFormatInfo.CurrentInfo;
        Calendar cal = dfi.Calendar;
        for (int i = 0; i < maxDays ; i++)
        {
           chart1.Series[0].Points[i].AxisLabel = 
                  cal.GetWeekOfYear(d.AddDays(i), 
                  dfi.CalendarWeekRule, dfi.FirstDayOfWeek).ToString();
           chart1.ChartAreas[0].AxisX.IntervalOffset = 2 - weekday;
        }
    }