这里介绍了一个最简单的实时显示数据的完整示例,
本文参考了 使用MSChart实时动态显示折线图 ,谢谢原作者的分享。
平台:VS2013,C#windows程序。
源代码下载:http://download.csdn.net/detail/lj22377/7713939
1、首先,将chart控件添加到窗口。
2、设置chart - series 主要t属性:
2.1 IsXValueIndexed = true;
2.2 XValueType = Time;
3、编写初始化函数:
private void InitChart()4、编写timer事件:
{
DateTime time = DateTime.Now;
chartTimer.Interval = 1000;
chartTimer.Tick += chartTimer_Tick;
chartDemo.DoubleClick += chartDemo_DoubleClick;
Series series = chartDemo.Series[0];
series.ChartType = SeriesChartType.Spline;
chartDemo.ChartAreas[0].AxisX.LabelStyle.Format = "HH:mm:ss";
chartDemo.ChartAreas[0].AxisX.ScaleView.Size = 5;
chartDemo.ChartAreas[0].AxisX.ScrollBar.IsPositionedInside = true;
chartDemo.ChartAreas[0].AxisX.ScrollBar.Enabled = true;
chartTimer.Start();
}
void chartTimer_Tick(object sender, EventArgs e)5、编写chart双击事件。(因为滑动条可以隐藏,隐藏之后不知道怎么恢复,所以就编写了这个双击事件,以恢复滑动条)
{
Random ra = new Random();
Series series = chartDemo.Series[0];
series.Points.AddXY(DateTime.Now, ra.Next(1, 10));
chartDemo.ChartAreas[0].AxisX.ScaleView.Position = series.Points.Count - 5;
//throw new NotImplementedException();
}
void chartDemo_DoubleClick(object sender, EventArgs e)
{
chartDemo.ChartAreas[0].AxisX.ScaleView.Size = 5;
chartDemo.ChartAreas[0].AxisX.ScrollBar.IsPositionedInside = true;
chartDemo.ChartAreas[0].AxisX.ScrollBar.Enabled = true;
//throw new NotImplementedException();
}
6、完整代码如下:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting; //需要添加的命名空间
namespace ChartRealTimeShow
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
InitChart();
}
System.Windows.Forms.Timer chartTimer = new System.Windows.Forms.Timer();
private void InitChart()
{
DateTime time = DateTime.Now;
chartTimer.Interval = 1000;
chartTimer.Tick += chartTimer_Tick;
chartDemo.DoubleClick += chartDemo_DoubleClick;
Series series = chartDemo.Series[0];
series.ChartType = SeriesChartType.Spline;
chartDemo.ChartAreas[0].AxisX.LabelStyle.Format = "HH:mm:ss";
chartDemo.ChartAreas[0].AxisX.ScaleView.Size = 5;
chartDemo.ChartAreas[0].AxisX.ScrollBar.IsPositionedInside = true;
chartDemo.ChartAreas[0].AxisX.ScrollBar.Enabled = true;
chartTimer.Start();
}
void chartDemo_DoubleClick(object sender, EventArgs e)
{
chartDemo.ChartAreas[0].AxisX.ScaleView.Size = 5;
chartDemo.ChartAreas[0].AxisX.ScrollBar.IsPositionedInside = true;
chartDemo.ChartAreas[0].AxisX.ScrollBar.Enabled = true;
//throw new NotImplementedException();
}
void chartTimer_Tick(object sender, EventArgs e)
{
Random ra = new Random();
Series series = chartDemo.Series[0];
series.Points.AddXY(DateTime.Now, ra.Next(1, 10));
chartDemo.ChartAreas[0].AxisX.ScaleView.Position = series.Points.Count - 5;
//throw new NotImplementedException();
}
}
}