The DateTime Axis maps time values evenly between a minimum and maximum value along
a chart axis. By default, it determines minimum, maximum, interval and intervalType
values from the charting data to fit all of the chart elements on the screen. You
can also explicitly set specific values for these properties.
The DateTime Axis chooses the most reasonable intervals to mark the axis by examining
the range between the minimum and maximum values of the axis.
In this sample the minimum, maximum, interval and intervalType are set explicitly.
For detailed implementation, please take a look at the Aspx code tab.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace SamplesBrowser.Models
{
public class DateTimeXAxisChartData
{
public static List<DateTimeXAxisChartData> GetRandom()
{
var data = new List<DateTimeXAxisChartData>();
Random rnd = new Random();
double yValue1 = 50;
double yValue2 = 200;
var date = new DateTime(2010, 1, 1);
for (var i = 0; i < 200; i++)
{
yValue1 += rnd.NextDouble() * 10 - 5;
yValue2 += rnd.NextDouble() * 10 - 5;
data.Add(new DateTimeXAxisChartData(date, Math.Round(yValue1, 2), Math.Round(yValue2, 2)));
date = date.AddDays(1);
}
return data;
}
public static List<DateTimeXAxisChartData> GetLineChartData()
{
var data = new List<DateTimeXAxisChartData>();
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 1), 62, 46));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 2), 60, 40));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 3), 68, 62));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 4), 58, 65));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 5), 52, 60));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 6), 60, 36));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 7), 48, 70));
return data;
}
public static List<DateTimeXAxisChartData> GetLineChartDataWithNullValues()
{
var data = new List<DateTimeXAxisChartData>();
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 1), 62, 46, 36));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 2), 60, 40, 30));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 3), 68, 62, 22));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 4), 58, 65, 25));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 5), null, null, null));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 6), 60, 36, 16));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 7), 48, 70, 30));
return data;
}
public static List<DateTimeXAxisChartData> GetAreaChartData()
{
var data = new List<DateTimeXAxisChartData>();
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 1, 1), 56, 46));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 2, 1), -20, 40));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 3, 1), -32, 62));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 4, 1), 50, 65));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 5, 1), 40, 60));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 6, 1), 36, 36));
data.Add(new DateTimeXAxisChartData(new DateTime(2010, 7, 1), 70, 70));
return data;
}
public static List<DateTimeXAxisChartData> GetDateTimeAxisSampleChartData()
{
var data = new List<DateTimeXAxisChartData>();
data.Add(new DateTimeXAxisChartData(new DateTime(2011, 1, 6), 70));
data.Add(new DateTimeXAxisChartData(new DateTime(2011, 1, 8), 82));
data.Add(new DateTimeXAxisChartData(new DateTime(2011, 1, 10), 85));
data.Add(new DateTimeXAxisChartData(new DateTime(2011, 1, 12), 70));
data.Add(new DateTimeXAxisChartData(new DateTime(2011, 1, 14), 65));
data.Add(new DateTimeXAxisChartData(new DateTime(2011, 1, 16), 68));
return data;
}
public DateTimeXAxisChartData(DateTime valueX, double valueY1)
{
this.ValueX = valueX;
this.ValueY1 = valueY1;
}
public DateTimeXAxisChartData(DateTime valueX, double? valueY1, double? valueY2)
{
this.ValueX = valueX;
this.ValueY1 = valueY1;
this.ValueY2 = valueY2;
}
public DateTimeXAxisChartData(DateTime valueX, double? valueY1, double? valueY2, double? valueY3)
{
this.ValueX = valueX;
this.ValueY1 = valueY1;
this.ValueY2 = valueY2;
this.ValueY3 = valueY3;
}
public DateTime ValueX { get; set; }
public double? ValueY1 { get; set; }
public double? ValueY2 { get; set; }
public double? ValueY3 { get; set; }
}
}