C#中CHART画图

想要根据数据库中记录个数动态决定chart控件的绘图区域，保证它们大小均匀，在网上找了N久么有发现满意答案，纠结了快一天的时间，终于把问题解决了，贴出来供大家分享O(∩_∩)O~

前面的代码中定义一个series对象数组： List listSer = new List(); 引发动态生成图表的按钮事件完整如下：

private void button1_Click(object sender, EventArgs e) {

OCon Mycon = new OCon();

OracleConnection conn = Mycon.getCon(); conn.Open();

string sqlString = \"select count(*) from dotrelation where dotdesc like '2%路基%温度%'\";

num = Mycon.countORL(conn, sqlString);//获得数据库中满足条件的记录数 //MessageBox.Show(\"满足条件的数据记录为\" + num); int heightPer = 100 / num;//计算每个绘图区高度

for (int i = 0; i < num; i++) {

string serName = \"test\" + i.ToString();

listSer.Add(new Series(serName));//对象数组

fillData(date);//初始化数组此方法自己定义的 initialSeries((Series)listSer[i], Color.Red, date);

chart1.ChartAreas.Add(\"ANOTHER\" + i); //这里是关键！！！！！

chart1.ChartAreas[i].Position.Width = 100;//绘图区域在控件中的宽度 100是百分比

chart1.ChartAreas[i].Position.Height = heightPer;

chart1.ChartAreas[i].Position.X = 5;//绘图区域在控件中的绝对位置 横坐标

chart1.ChartAreas[i].Position.Y = 3 + heightPer * i;//绘图区域在控件中的绝对位置纵坐标

chart1.ChartAreas[i].AxisX.LineColor = Color.Blue; chart1.ChartAreas[i].AxisY.LineColor = Color.Blue; chart1.ChartAreas[i].AxisX.LineWidth = 2; chart1.ChartAreas[i].AxisY.LineWidth = 2; chart1.ChartAreas[i].AxisY.Title = \"监测值\"; //设置网格线

chart1.ChartAreas[i].AxisX.MajorGrid.LineColor = Color.Blue; chart1.ChartAreas[i].AxisX.MajorGrid.Interval = 2;//网格间隔 chart1.ChartAreas[i].AxisX.MinorGrid.Interval = 2;

chart1.ChartAreas[i].AxisY.MajorGrid.LineColor = Color.Blue; chart1.ChartAreas[i].AxisY.MajorGrid.Interval = 2; chart1.ChartAreas[i].AxisY.MinorGrid.Interval = 2;

chart1.Series[i].IsValueShownAsLabel = false; //是否显示数据

chart1.Series[i].IsVisibleInLegend = false; //是否显示数据说明

chart1.Series[i].MarkerStyle = MarkerStyle.Circle; //线条上的数据点标志类型

chart1.Series[i].MarkerSize = 3; //标志大小

chart1.Series[i].ChartType = SeriesChartType.Line; //图表类型为曲线

string name = \"ANOTHER\" + i.ToString();

chart1.Series[i].ChartArea = name;//指定绘图区域

chart1.ChartAreas[i].AxisX.LineColor = Color.Blue; //X轴颜色

chart1.ChartAreas[i].AxisY.LineColor = Color.Blue; //Y轴颜色

chart1.ChartAreas[i].AxisX.LineWidth = 2; //X轴宽度

chart1.ChartAreas[i].AxisY.LineWidth = 2; //Y轴宽度

chart1.ChartAreas[i].AxisY.Title = \"人数\"; //Y轴标题 }

//fillData(date);//初始化数组

//initialSeries(series1, Color.Red, date); initalChart();//图表初始化 }

C#中CHART控件

简单示例：

后台代码：

protected void Page_Load(object sender, EventArgs e) {

DataTable dt = default(DataTable); dt = CreateDataTable();

//设置图表的数据源 Chart1.DataSource = dt;

//设置图表Y轴对应项

Chart1.Series[0].YValueMembers = \"Volume1\"; Chart1.Series[1].YValueMembers = \"Volume2\";

//设置图表X轴对应项

Chart1.Series[0].XValueMember = \"Date\";

//绑定数据

Chart1.DataBind(); }

private DataTable CreateDataTable() {

//Create a DataTable as the data source of the Chart control DataTable dt = new DataTable();

//Add three columns to the DataTable dt.Columns.Add(\"Date\"); dt.Columns.Add(\"Volume1\"); dt.Columns.Add(\"Volume2\");

DataRow dr;

//Add rows to the table which contains some random data for demonstration

dr = dt.NewRow(); dr[\"Date\"] = \"Jan\"; dr[\"Volume1\"] = 3731; dr[\"Volume2\"] = 4101; dt.Rows.Add(dr);

dr = dt.NewRow(); dr[\"Date\"] = \"Feb\"; dr[\"Volume1\"] = 6024; dr[\"Volume2\"] = 4324; dt.Rows.Add(dr);

dr = dt.NewRow(); dr[\"Date\"] = \"Mar\"; dr[\"Volume1\"] = 4935; dr[\"Volume2\"] = 2935; dt.Rows.Add(dr);

dr = dt.NewRow(); dr[\"Date\"] = \"Apr\"; dr[\"Volume1\"] = 4466;

dr[\"Volume2\"] = 54; dt.Rows.Add(dr);

dr = dt.NewRow(); dr[\"Date\"] = \"May\"; dr[\"Volume1\"] = 5117; dr[\"Volume2\"] = 5671; dt.Rows.Add(dr);

dr = dt.NewRow(); dr[\"Date\"] = \"Jun\"; dr[\"Volume1\"] = 3546; dr[\"Volume2\"] = 46; dt.Rows.Add(dr);

return dt; } 浏览页面：

private void showChart(Chart chart, double[] value) {

string[] xValue = { \"A\", \"B\", \"C\", \"D\" }; //设Θ?置?标括?签? double[] yValue = value; //获?取?要癮显?示?的?值μ

chart.BorderSkin.SkinStyle = BorderSkinStyle.Emboss; //设Θ?置?图?表括?边?框ò为a浮?雕?效§果?

chart.BorderlineDashStyle = ChartDashStyle.Solid; //设Θ?置?图?表括?边?框ò为a实害?线?

chart.BorderlineWidth = 1; //设Θ?置?图?表括?边?框ò的?宽í度è

chart.Series[0].ChartType = SeriesChartType.Pie; //设Θ?置?图?表括?类え?型í为a饼纘图?

chart.Series[0].CustomProperties Θ?置?饼纘图?的?参?数簓

chart.Series[0].Points.DataBindXY(xValue, yValue); //将?数簓据Y绑悒?定¨到?图?表括? }

double[] value = { 30, 40, 50, 60 }; //要癮显?示?的?数簓据Y showChart(this.chart1, value); //显?示?图?表括?

=

\"DoughnutRadius=25,

PieDrawingStyle=Concave, CollectedLabel=Other, MinimumRelative\" + \"PieSize=20\"; //设