ASP.. NET图表:如何使用for循环绘制序列点

本文关键字:绘制 循环 for 何使用 NET 图表 ASP | 更新日期: 2023-09-27 18:14:30

我已经用程序建立了一个图表,但是我现在要做的是格式化X轴,以便每个点代表一天中的一个时间,以24小时格式。

我想从"04:00:00"开始计时,一直到"16:00:00",间隔15分钟-我需要在X轴上绘制40个点。不用担心Y轴的值。我有一个想法,我想做什么来填充这些值使用数据库。

这就是我到目前为止所做的(如下所示),但我还不能想象如何使用for循环来实现这一努力。

谁能告诉我如何才能实现这个目标?

//for (int i = 0; i < 41; i++)
    //{
    Chart1.Series[0].Points.AddXY("04:00:00", 5);
    Chart1.Series[0].Points.AddXY("04:15:00", 10);
    Chart1.Series[0].Points.AddXY("04:30:00", 15);
    Chart1.Series[0].Points.AddXY("04:45:00", 25);
    ...
    ...
    ...
    Chart1.Series[0].Points.AddXY("16:00:00", 25);
//}

这是我的全部代码:供参考。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.DataVisualization.Charting;
namespace DishMES
{
   public partial class WebForm1 : System.Web.UI.Page
   {
    protected void Page_Load(object sender, EventArgs e)
    {
        buildRepairedChart();
    }
    public void buildRepairedChart()
    {
        //CREATE CHART
        Chart1.Height = Unit.Pixel(200);
        Chart1.Width = Unit.Pixel(900);
        //DEFINE CHART AREA
        ChartArea chartArea = new ChartArea();
        Chart1.ChartAreas.Add(chartArea);
        ChartArea3DStyle areaStyle = new ChartArea3DStyle(chartArea);
        areaStyle.Rotation = 0;
        Axis yAxis = new Axis(chartArea, AxisName.Y);
        Axis xAxis = new Axis(chartArea, AxisName.X);
        var ca = Chart1.ChartAreas[0];
        ca.AxisX.LabelStyle.Format = "hh:mm:ss";
        ca.AxisX.Minimum = 0;
        ca.AxisX.Interval = 1;

        // BUILD CHART SERIES
        Series series = new Series("Default");
        Chart1.Series.Add(series);
        var s = Chart1.Series[0];
        s.ToolTip = "#VALX{t}";
        s.XValueType = ChartValueType.Time;
        //TIME STUFF

        // BIND DATA TO CHART
        //for (int i = 0; i < 41; i++)
        //{
        Chart1.Series[0].Points.AddXY("04:00:00", 5);
        Chart1.Series[0].Points.AddXY("04:15:00", 10);
        Chart1.Series[0].Points.AddXY("04:30:00", 15);
        Chart1.Series[0].Points.AddXY("04:45:00", 25);
        //}
        Chart1.DataBind();
    }
}

}

ASP.. NET图表:如何使用for循环绘制序列点

如果您的数据来自source,如列表或数据集,

Series s = new Series();
int i=0;
foreach(var d in source)
{
    s.Points.AddXY(d.Date, d.Point); //or d.Key,d.Value, or d["Date"],d["Point"]
}
Chart1.Series.Add(s);

我真的希望你不必手动规划你的日期。

var list = new Dictionary<DateTime,object>();
DateTime start = DateTime.ParseExact(
        "3:45:00 AM", 
        "h:mm:ss tt", 
        CultureInfo.InvariantCulture);
for(int i=0;i<48;i++)
{
    start=start.AddMinutes(15);
    list.add(start,source[i]);
}

答案如下:

        // BIND DATA TO CHART
        for (int i = 0; i < 43; i++)
        {
            //TIME STUFF FOR SQL
            int startBin = 14400;
            int endBin = 15300;
            TimeSpan stime = TimeSpan.FromSeconds(startBin + (i * 900));
            TimeSpan etime = TimeSpan.FromSeconds(endBin + (i * 900));
            string xAxisStart = string.Format("{0:D2}:{1:D2}:{2:D2}", stime.Hours, stime.Minutes, stime.Seconds);
            string xAxisStop = string.Format("{0:D2}:{1:D2}:{2:D2}", etime.Hours, etime.Minutes, etime.Seconds);
            //TARGET SERIES 
            RepairedChart.Series["REPAIRED"].Points.AddXY(xAxisStart, getRepaired2(xAxisStart, xAxisStop));
            RepairedChart.Series["TARGET"].Points.AddXY(xAxisStart, getScheduleRepairTarget(xAxisStart, xAxisStop));
        }