一个很强大的ASP.NET画图控件(二)

  dotcharting画图控件的扩展内容非常广，这里主要介绍一些图形样式的扩展内容说明框的位置，xy轴样式，主题栏样式，ann,ax两种非常规说明框的使用

 代码如下：

if(ListBox2.Items.Count==0)
        {
            return;
        }
        Chart1.Visible = true;
        float maxstroke = 0;
        float maxtimes = 0;
        float maxwork = 0;
        float minwork = 0;
        if (ListBox2.Items.Count != 0)
        {
            SeriesCollection SC = new SeriesCollection();
            //定义说明框格式，只显示线型和名字
            Chart1.LegendBox.Template = "%Icon%Name";
            Chart1.LegendBox.DefaultEntry.Value = "";
            Chart1.Debug = false;
            //Chart1.Type = ChartType.Scatter;
            //线条形状为直线
            Chart1.DefaultSeries.Type = SeriesType.Line;
            //装载画完图的图形的文件夹的名字，此处为相对路径，也可以用绝对路径
            Chart1.TempDirectory = "tempdata";
            //图形高度
            Chart1.Height = 450;
            //图形宽度
            Chart1.Width = 650;
            //标题栏的位置为满宽度
            Chart1.TitleBox.Position = TitleBoxPosition.Full;
            //标题框中文字的对齐方式
            Chart1.TitleBox.Label.Alignment = StringAlignment.Center;
            //画图区域的背景颜色，也可以用256位像素来定义
            Chart1.ChartArea.Background = new Background(Color.Ivory);
            //是否显示曲线中的数据点
            Chart1.DefaultSeries.DefaultElement.Marker.Type = ElementMarkerType.None;
            //Chart1.ChartArea.ClearColors();
            //Chart1.LegendBox.Orientation = dotnetCHARTING.Orientation.Bottom;
            //自定义说明框的字体以及颜色
            Chart1.LegendBox.LabelStyle = new dotnetCHARTING.Label("", new Font("宋体", 9), Color.Black);
            //定义说明框的形状
            Chart1.LegendBox.CornerTopLeft = BoxCorner.Square;
            Chart1.LegendBox.CornerBottomRight = BoxCorner.Square;
            //定义说明框的背景颜色
            Chart1.LegendBox.Background = new Background(System.Drawing.Color.Ivory);
            
            Chart1.TitleBox.Background = new Background(System.Drawing.Color.Ivory);
            //X,Y轴尾部的形状，箭头还是其他形状
            Chart1.DefaultAxis.Line.EndCap = LineCap.ArrowAnchor;
            //X,y轴线条宽度
            Chart1.DefaultAxis.Line.Width = 2;
            Chart1.ShadingEffectMode = ShadingEffectMode.Two;
            Chart1.TitleBox.CornerBottomLeft = BoxCorner.Square;
            Chart1.TitleBox.CornerBottomRight = BoxCorner.Square;
            Chart1.TitleBox.CornerTopLeft = BoxCorner.Round;
            Chart1.TitleBox.CornerTopRight = BoxCorner.Round;
            Chart1.TitleBox.Label = new dotnetCHARTING.Label(DDL_JingHao.SelectedValue.Trim().ToString() + "地面示功图比较", new Font("宋体", 9), Color.Black);
            Chart1.XAxis.Label.Text = "位移(m)";
            Chart1.YAxis.Label.Text = "载荷(kN)";
            //定义多条曲线的颜色集合
            Color[] serColor = new Color[] { Color.FromArgb(255,0,0), Color.FromArgb(0,0,255), Color.FromArgb(53,202,53), Color.FromArgb(142,67,188), Color.FromArgb(0,0,0)
                , Color.FromArgb(3,199,209), Color.FromArgb(222,22,233), Color.FromArgb(234,117,0),
                Color.FromArgb(128,64,64), Color.FromArgb(205,199,199), Color.FromArgb(151,151,0) };//设置每条曲线的颜色

            ArrayList maxWorkList = new ArrayList();//存储每条曲线的最大载荷
            ArrayList minWorkList = new ArrayList();//存储每条曲线的最小载荷
            for (int i = 0; i < ListBox2.Items.Count; i++)
            {
                string t_Sql;

                switch (rbtnChartType.SelectedValue.Trim())
                {
                    case "地面功图":

                        t_Sql = "select wl_time,wl_distance,wl_times,wl_maxwork,wl_minwork,wl_move,wl_work from well_data where wellbzid='" + DDL_JingHao.SelectedValue.Trim() + "' and wl_time=convert(datetime,'" + ListBox2.Items[i].Text.Trim() + "',120)";
                        break;

                    case "泵功图":

                        t_Sql = "select well_time as wl_time,wl_distance,wl_times,bwmax as wl_maxwork,bwmin as wl_minwork,wl_move,wl_work from well_btdata where wellbzid='" + DDL_JingHao.SelectedValue.Trim() + "' and well_time=convert(datetime,'" + ListBox2.Items[i].Text.Trim() + "',120)";
                        break;

                    default:

                        t_Sql = "select wl_time,wl_distance,wl_times,wl_maxwork,wl_minwork,wl_move,wl_work from well_data";
                        break;

                }

                DataSet DS = DataHandle.ExecuteSQL(t_Sql);
                Series s = new Series();
                if (DS.Tables[0].Rows.Count != 0)
                {
                    try
                    {
                        maxstroke = Convert.ToSingle(DS.Tables[0].Rows[0]["wl_distance"]);
                        maxtimes = Convert.ToSingle(DS.Tables[0].Rows[0]["wl_times"]);
                        minwork = Convert.ToSingle(DS.Tables[0].Rows[0]["wl_minwork"]);
                        maxwork = Convert.ToSingle(DS.Tables[0].Rows[0]["wl_maxwork"]);

                        maxWorkList.Add(maxwork);
                        minWorkList.Add(minwork);

                        string movepack = DS.Tables[0].Rows[0]["wl_move"].ToString();
                        string workpack = DS.Tables[0].Rows[0]["wl_work"].ToString();
                        string[] onemovepack = System.Text.RegularExpressions.Regex.Split(movepack, @"[;]+");
                        string[] oneworkpack = System.Text.RegularExpressions.Regex.Split(workpack, @"[;]+");

                        if (onemovepack[onemovepack.Length - 1] != null && onemovepack[onemovepack.Length - 1].ToString().Trim() == "")
                        {
                            onemovepack[onemovepack.Length - 1] = onemovepack[0].Trim();
                        }
                        if (oneworkpack[oneworkpack.Length - 1] != null && oneworkpack[oneworkpack.Length - 1].ToString().Trim() == "")
                        {
                            oneworkpack[oneworkpack.Length - 1] = oneworkpack[0].Trim();
                        }

                        s.Name = DS.Tables[0].Rows[0]["wl_time"].ToString();


                        if (i < 12)
                        {
                            s.DefaultElement.Color = serColor[i];
                        }
                        else
                        {
                            Random r = new Random();
                            s.DefaultElement.Color = Color.FromArgb(r.Next(0, 160), r.Next(0, 160), r.Next(0, 160));
                        }

                        for (int j = 0; j < onemovepack.Length ; j++)
                        {
                            Element e1 = new Element();
                            e1.XValue = double.Parse(onemovepack[j].Trim());
                            e1.YValue = double.Parse(oneworkpack[j].Trim());
                            s.Elements.Add(e1);
                        }
                        SC.Add(s);
                    }
                    catch
                    {
                    }
                }
                else
                {
                    Chart1.Visible = false;
                    return;
                }
            }
            #region 最大最小值显示

            maxWorkList.Sort();
            minWorkList.Sort();
            //Axismarker，非常规曲线展示，例如图形中的说明框，图形关键区域绘画等等。可以灵活运用于各种图形完善内容
            if (ckbShowMax.Checked)
            {
                double maxValue = 0.0;
                if (maxWorkList.Count != 0)
                {
                    maxValue = Convert.ToSingle(maxWorkList[maxWorkList.Count - 1]);
                }
                AxisMarker Am1 = new AxisMarker("最大载荷线(" + maxValue.ToString("F") + "kN)", new Line(Color.Green), maxValue);
                Am1.Line.DashStyle = DashStyle.Dash;
                Chart1.YAxis.Markers.Add(Am1);
                Am1.LegendEntry.Visible = false;
            }
            if (ckbShowMin.Checked)
            {
                double minValue = 0.0;
                if (minWorkList.Count != 0)
                {
                    minValue = Convert.ToSingle(minWorkList[0]);
                }
                AxisMarker Am2 = new AxisMarker("最小载荷线(" + minValue.ToString("F") + "kN)", new Line(Color.Green), minValue);
                Am2.Line.DashStyle = DashStyle.Dash;
                Chart1.YAxis.Markers.Add(Am2);
                Am2.LegendEntry.Visible = false;
            }
            #endregion

           //chart1的曲线集合加载SC
            Chart1.SeriesCollection.Add(SC);
            //annotation类似于axismarker
            Annotation ann = new Annotation("最大冲程:" + maxstroke.ToString().Trim() + "m" + " 最大冲次:" + maxtimes.ToString().Trim() + "/min");
            //定义annotation的位置
            ann.Position = new Point(60, 40);
            ann.DynamicSize = false;
            ann.Size = new Size(220, 25);
            ann.Label.Color = Color.Black;
            ann.Label.Alignment = StringAlignment.Near;
            ann.CornerBottomLeft = BoxCorner.Square;
            ann.CornerBottomRight = BoxCorner.Square;
            ann.CornerTopLeft = BoxCorner.Square;
            ann.CornerTopRight = BoxCorner.Square;
            ann.Background = new Background(Color.FromArgb(182,239,236));
            ann.Label.Font = new Font("Arial", 12.0f, FontStyle.Regular, GraphicsUnit.Pixel);

            Chart1.Annotations.Add(ann);
       }
        else
        {
            return;
        }

 

图形展示效果如下：