MSChart使用 对图形样式的部分设置,一般对series设置

使用雷达图样式:System.Web.UI.DataVisualization.Charting.SeriesChartType.Radar

 

/// <summary>
    /// 绑定显示数据webform
    /// </summary>
    /// <param name="chart">要绑定数据chart</param>
    /// <param name="dt">要绑定的数据表</param>
    /// <param name="XCol">图标X轴的列名</param>
    /// <param name="YCols">图表Y轴的列名集合,用|分隔</param>
    /// <param name="sTitle">图表的标题</param>
    /// <param name="chartType">图表的显示类型</param>
    /// <param name="IsStaggered">是否错位显示列</param>
    public static void ShowBindForPointAndWebForm(System.Web.UI.DataVisualization.Charting.Chart chart, DataTable dt, string XCol, string YCols, string sTitle, System.Web.UI.DataVisualization.Charting.SeriesChartType chartType, bool IsStaggered)
    {
        if (dt == null)
        {
            return;
        }
        string[] col = YCols.Split('|');
        chart.Series.Clear();

        //刻度最大、最小、当前值
        double max = 0;
        double min = 0;
        double cut = 0;

        for (int i = 0; i < col.Length; i++)
        {//一个series代表一个数据列
            System.Web.UI.DataVisualization.Charting.Series series = new System.Web.UI.DataVisualization.Charting.Series();

            series.BorderWidth = 3;
            series.Name = col[i].ToString();
            series.ChartType = chartType;
            series.Points.Clear();

            for (int j = 0; j < dt.Rows.Count; j++)
            {
                cut = double.Parse(dt.Rows[j][col[i].ToString()].ToString());

                //计算刻度最大、最小、当前值
                if (i == 0 && j == 0)
                {
                    max = cut;
                    min = cut;
                }
                if (cut > max)
                {
                    max = cut;
                }
                if (cut < min)
                {
                    min = cut;
                }

                series.Points.AddXY(dt.Rows[j][XCol].ToString() +" "+ string.Format("{0:C0}", cut) +"(元)", cut);//设置的point的位置,不是实体数值
                series.Points[series.Points.Count - 1].IsVisibleInLegend = true;
               
                if (i==0)
                {//是否每个数据列都显示数据值标签
                    series.Points[series.Points.Count - 1].Label = cut.ToString();//date[i].ToString();
                }
                else
                {
                    series.Points[series.Points.Count - 1].Label = "";
                }

                series.Points[series.Points.Count - 1].LegendText = dt.Rows[j][XCol].ToString();

                series.Points[series.Points.Count - 1].ToolTip = dt.Rows[j][XCol].ToString() + "" + string.Format("{0:C0}", cut) + "(元)";
            }


            series.CustomProperties = "DrawingStyle=Cylinder";//柱图为圆形,图形的样式
            series["RadarDrawingStyle"] = "Line";//雷达图中的图形样式为折线图(默认是区域图)
            series.MarkerStyle = System.Web.UI.DataVisualization.Charting.MarkerStyle.Circle;//图形中的各个数据点样式显示(默认是没有的),可以修改设置为:方块、三角等样式

            chart.Series.Add(series);
        }
        chart.ChartAreas[0].AxisY.LabelStyle.Enabled = false;//Y轴刻度线数据值不显示
        chart.ChartAreas[0].AxisY.MajorTickMark.Enabled = false;//Y轴刻度线不显示
        if (max != 0)
        {//判定Y轴数据范围
            int MaxLength = Convert.ToInt32(max).ToString().Length;
            double MaxChu = Math.Pow(10, MaxLength - 2);

            chart.ChartAreas[0].AxisY.Interval = Math.Ceiling(max / MaxChu) * (MaxChu / 10);
            chart.ChartAreas[0].AxisY.Maximum = Math.Ceiling(max / MaxChu) * MaxChu;
            chart.ChartAreas[0].AxisY.Minimum = 0;
        }

        chart.ChartAreas[0].AxisX.Maximum = dt.Rows.Count + 1;   //设置X轴最大坐标值
        chart.ChartAreas[0].AxisX.Minimum = 0;   //设置X轴最大坐标值

        if (chart.Titles.Count != 0)
        {//添加图形标题
            chart.Titles[0].Text = sTitle;
        }
        else
        {
            chart.Titles.Add("title1");
            chart.Titles[0].Text = sTitle;
        }
        if (IsStaggered)
        {
            //解决X轴多长则不显示的问题
            chart.ChartAreas[0].AxisX.Interval = 1;   //设置X轴坐标的间隔为1
            chart.ChartAreas[0].AxisX.IntervalOffset = 1;  //设置X轴坐标偏移为1
            chart.ChartAreas[0].AxisX.LabelStyle.IsStaggered = true;   //设置是否交错显示,比如数据多的时间分成两行来显示
        }
    }

 

结果:

posted @ 2013-03-14 11:19  九天星辰  阅读(4322)  评论(0编辑  收藏  举报