C#中向Chart中添加数据

在C#中有时需要将数据放入图表中进行直观展示，现介绍如何DataTable将数据添加到Chart

一、数据准备，DataTable数据

二、将DataTable数据添加到Chart数据源

chart1.DataSource = rentreturnTable;

初始化图标

chart1.Series.Clear();chart1.Titles.Clear();chart1.ChartAreas.Clear();chart1.ChartAreas.Add("ChartArea1");

设置标题

chart1.Titles.Add("各租赁点日租还总量表 蓝色表示租借 黄色表示归还");chart1.ChartAreas[0].AxisX.Title = "租赁点编号";chart1.ChartAreas[0].AxisY.Title = "自行车数/辆";

设置元素

Series srent = new Series();srent.ChartType = SeriesChartType.Column;//srent.BorderWidth = 3;srent.BorderColor = Color.Blue;srent.Points.DataBind(rentreturnTable.AsEnumerable(), "STATIONID", "rentnum", "");chart1.Series.Add(srent);Series sreturn = new Series();sreturn.ChartType = SeriesChartType.Column;//sreturn.BorderWidth = 3;sreturn.BorderColor = Color.Yellow;sreturn.Points.DataBind(rentreturnTable.AsEnumerable(), "STATIONID", "returnnum", "");chart1.Series.Add(sreturn);chart1.ChartAreas[0].AxisX.Interval = 1;   //设置X轴坐标的间隔为1chart1.ChartAreas[0].AxisX.IntervalOffset = 1;  //设置X轴坐标偏移为1//chart1.ChartAreas[0].AxisX.LabelStyle.IsStaggered = true; chart1.Series[0].IsValueShownAsLabel = true;chart1.Series[1].IsValueShownAsLabel = true;

全部代码展示

chart1.DataSource = rentreturnTable;                        //初始化图表                        chart1.Series.Clear();                        chart1.Titles.Clear();                        chart1.ChartAreas.Clear();                        chart1.ChartAreas.Add("ChartArea1");                        //设置标题                        chart1.Titles.Add("各租赁点日租还总量表 蓝色表示租借 黄色表示归还");                        chart1.ChartAreas[0].AxisX.Title = "租赁点编号";                        chart1.ChartAreas[0].AxisY.Title = "自行车数/辆";                        //设置元素                        Series srent = new Series();                        srent.ChartType = SeriesChartType.Column;                        //srent.BorderWidth = 3;                        srent.BorderColor = Color.Blue;                        srent.Points.DataBind(rentreturnTable.AsEnumerable(), "STATIONID", "rentnum", "");                        chart1.Series.Add(srent);                        Series sreturn = new Series();                        sreturn.ChartType = SeriesChartType.Column;                        //sreturn.BorderWidth = 3;                        sreturn.BorderColor = Color.Yellow;                        sreturn.Points.DataBind(rentreturnTable.AsEnumerable(), "STATIONID", "returnnum", "");                        chart1.Series.Add(sreturn);                        chart1.ChartAreas[0].AxisX.Interval = 1;   //设置X轴坐标的间隔为1                        chart1.ChartAreas[0].AxisX.IntervalOffset = 1;  //设置X轴坐标偏移为1                        //chart1.ChartAreas[0].AxisX.LabelStyle.IsStaggered = true;                         chart1.Series[0].IsValueShownAsLabel = true;                        chart1.Series[1].IsValueShownAsLabel = true;