DevExpress.chartControt画趋势图

 1  private void DrawLine(DataTable dt)
 2         {
 3             Myalysis.Series.Clear();
 4             //图标位置
 5             Myalysis.Legend.AlignmentHorizontal = LegendAlignmentHorizontal.Right;
 6             Myalysis.Legend.AlignmentVertical = LegendAlignmentVertical.Top;
 7             ChartTitle chartTitle = new ChartTitle();
 8             chartTitle.TextColor = System.Drawing.Color.Black;//字体颜色
 9             chartTitle.Font = new Font("Tahoma", 12);//字体类型字号
10             chartTitle.Dock = ChartTitleDockStyle.Bottom;//标题对齐方式
11             chartTitle.Alignment = StringAlignment.Far;
12             Myalysis.Titles.Clear();//清理标题
13             Series s_Series = new Series("血糖总览", ViewType.Line);
14             s_Series.ArgumentScaleType = ScaleType.Qualitative;//x轴类型
15             s_Series.ValueScaleType = ScaleType.Numerical;//y轴类型
16             s_Series.PointOptions.PointView = PointView.Values;//显示表示的信息和数据
17             //X轴的数据字段
18             s_Series.ArgumentDataMember = "reporttime";
19             //Y轴的数据字段
20             s_Series.ValueDataMembers[0] = "RESULT";
21             //定义线条上点的标识形状是否需要
22             ((LineSeriesView)s_Series.View).LineMarkerOptions.Visible = true;
23             //定义线条上点的标识形状
24             ((LineSeriesView)s_Series.View).LineMarkerOptions.Kind = MarkerKind.Circle;
25             //定义线条上点的标识颜色
26             s_Series.View.Color = ColorTranslator.FromHtml("#f90");
27             //不显示X、Y轴上面的交点的值
28             ((PointSeriesLabel)s_Series.Label).Visible = true;
29             //线条的类型，虚线，实线
30             ((LineSeriesView)s_Series.View).LineStyle.DashStyle = DashStyle.Solid;
31             s_Series.DataSource = dt;
32             Myalysis.Series.Add(s_Series);
33             foreach (DataRow item in dt.Rows)
34             {
35                 if (item["diagcode"].ToString() == "1111".ToString())
36                 {
37                     Series ss_series = new Series("", ViewType.Line);
38                     ss_series.View.Color = Color.Blue;
39                     ((LineSeriesView)ss_series.View).LineMarkerOptions.Kind = MarkerKind.Circle;
40                     //X轴的数据字段
41                     s_Series.ArgumentDataMember = "reporttime";
42                     //Y轴的数据字段
43                     s_Series.ValueDataMembers[0] = "RESULT";
44
45                     ss_series.Points.Add(new SeriesPoint(item["reporttime"], item["result"].ToString()));
46                     Myalysis.Series.Add(ss_series);
47                 }
48             }
49             //增加水平警戒线
50             ConstantLine constantLine1 = new ConstantLine();
51             ConstantLine constantLine2 = new ConstantLine();
52             constantLine2.AxisValue = 3.9;
53             constantLine1.AxisValue = 10;
54             constantLine2.LegendText = "正常下限(3.9)";
55             constantLine1.LegendText = "正常上限(10.0)";
56             constantLine1.Title.TextColor = Color.Red;
57             constantLine1.Color = Color.Red;
58             constantLine2.Color = Color.Green;
59             constantLine1.LineStyle.DashStyle = DashStyle.Solid;
60             constantLine2.LineStyle.DashStyle = DashStyle.Solid;
61             XYDiagram labDiagram = (XYDiagram)Myalysis.Diagram;　　　　　　　　　//去掉曲线图中的线条
62             labDiagram.AxisY.GridLines.Visible = false;64             labDiagram.AxisY.ConstantLines.Clear();
65             labDiagram.AxisY.ConstantLines.Add(constantLine1);
66             labDiagram.AxisY.ConstantLines.Add(constantLine2);
67
68         }