在c#中的图表区域内停靠图例答案

【问题标题】：Docking legends inside the chart area in c#在c#中的图表区域内停靠图例
【发布时间】：2013-12-18 10:42:47
【问题描述】：

这是创建 3 个图表的代码。我想将图例停靠在每个图表的区域内，但我在底部得到了图例。我使用了 DockedToChartArea 但这没有用。我想在每个图表区域内获得一个图例。

for (int t = 0; t < ARF.Rows.Count; t += 1)
{   
    dv.RowFilter = FilterString1.ToString();

    Chart1.Series.Add("Series1" + t.ToString());
    Chart1.ChartAreas.Add("ChartArea1" + t.ToString());
    Chart1.Series[t].ChartArea = "ChartArea1" + t.ToString();

    if (dtReportDetails.Rows[0].ItemArray[7].ToString() == "Bar")
    {
        Chart1.Series[t].ChartType = SeriesChartType.Column;
        Chart1.Series[t].BorderWidth = 2;
        Chart1.Series[t].ToolTip = "(#VALX,#VALY)";
        Chart1.ChartAreas["ChartArea1" + t.ToString()].AxisX.Title = "Learning Domains";
        Chart1.ChartAreas["ChartArea1" + t.ToString()].AxisY.Title = "Covered";
        Chart1.Legends.Add("Legend1" + t.ToString());
        Chart1.Legends["Legend1" + t.ToString()].Enabled = false;
        // Chart1.Legends["Legend1" + t.ToString()].Docking = Docking.Bottom;
        Chart1.Legends["Legend1" + t.ToString()].Alignment = System.Drawing.StringAlignment.Center;
        Chart1.Legends["Legend1" + t.ToString()].DockedToChartArea = "ChartArea1" + t.ToString();
        // Chart1.Legends["Legend1" + t.ToString()].IsDockedInsideChartArea = false;
        Random random = new Random();
        foreach (var item in Graph.Series[0].Points)
        {
            System.Drawing.Color c = System.Drawing.Color.FromArgb(random.Next(0, 255), random.Next(0, 255), random.Next(0, 255));
            item.Color = c;

         }

         Chart1.Series[t]["PointWidth"] = "0.2";
         Chart1.Series[t]["BarLabelStyle"] = "Center";
         Chart1.Series[t]["PixelPointDepth"] = "99";
         Chart1.Series[t]["DrawingStyle"] = "Cylinder";
     }
     else if (dtReportDetails.Rows[0].ItemArray[7].ToString() == "Pie")
     {
         Chart1.Series[t].ChartType = SeriesChartType.Pie;
         Chart1.Legends.Add("Legend1" + t.ToString());
         Chart1.Legends["Legend1" + t.ToString()].Enabled = true;
         Chart1.Legends["Legend1" + t.ToString()].Docking = Docking.Bottom;
         Title t2 = new Title();
         t2.Name = "ChartArea1" + t.ToString();
         // Chart1.Legends[t].DockedToChartArea = t2.Name;
         //Chart1.Legends[t].IsDockedInsideChartArea = true;
         //Chart1.Legends["Legend1" + t.ToString()].Alignment = System.Drawing.StringAlignment.Center;
         Chart1.Legends[t].Enabled = true;
         //  Chart1.Legends[t].Docking = Docking.Bottom;
         //Chart1.Legends[t].IsDockedInsideChartArea = true;
         Chart1.Legends[t].Alignment = System.Drawing.StringAlignment.Center;
         Chart1.Series[t].Label = "#PERCENT{P2}";
         Chart1.Series[t].LegendText = "#VALX";
      }
      else if (dtReportDetails.Rows[0].ItemArray[7].ToString() == "Line")
      {
         Chart1.Series[t].ChartType = SeriesChartType.Line;
         Chart1.Series[0].MarkerStyle = MarkerStyle.Circle;
         Chart1.Legends.Add("Legend1" + t.ToString());
         Chart1.Legends["Legend1" + t.ToString()].Enabled = false;
         //Chart1.Legends["Legend1" + t.ToString()].Docking = Docking.Bottom;
         Chart1.Legends["Legend1" + t.ToString()].Alignment = System.Drawing.StringAlignment.Center;
         Chart1.ChartAreas["ChartArea1" + t.ToString()].AxisX.LabelStyle.Format = "dd-MMM-yyy";
         Chart1.ChartAreas["ChartArea1" + t.ToString()].AxisX.Title = "Date";
         Chart1.ChartAreas["ChartArea1" + t.ToString()].AxisY.Title = "Average Score (%) ";
         Chart1.ChartAreas["ChartArea1" + t.ToString()].AxisY.Minimum = 0;
         Chart1.ChartAreas["ChartArea1" + t.ToString()].AxisY.Maximum = 100;
         // Chart1.ChartAreas["ChartArea1"].AxisY.Interval = 10;
         Chart1.Series[t].ToolTip = "Date :#VALX Avg Score(%) :#VALY";
         Chart1.Legends["Legend1" + t.ToString()].IsDockedInsideChartArea = false;
      }
      else
      {
          ///
      }
      Title tt = new Title();
      tt.Name = "ChartArea1" + t.ToString();
      Title l1 = new Title();
      l1.Name = "Legend1" + t.ToString();
      // tt.Text = "Performance Warehouses";
      Chart1.Titles.Add(tt);
      Chart1.Titles[tt.Name].Text = char.ToUpper(UserName[0]) + UserName.Substring(1);//char.ToUpper(s[0]) + s.Substring(1)
      Chart1.Titles[tt.Name].DockedToChartArea = tt.Name;
      //Chart1.Legends[l1].DockedToChartArea = tt.Name;
      Chart1.Titles[tt.Name].IsDockedInsideChartArea = false;
      Chart1.Titles[tt.Name].Font = new System.Drawing.Font("Arial", 13);
      Chart1.Titles[tt.Name].ForeColor = System.Drawing.Color.Black;
      Chart1.Series[("Series1" + t).ToString()].Points.DataBindXY(dv, dtReportDetails.Rows[0].ItemArray[4].ToString(), dv, dtReportDetails.Rows[0].ItemArray[5].ToString());
}

【问题讨论】：

您使用的是dotnethighcharts 还是highcharts？
我正在使用点网图表属性/
你使用的是dotnethighcharts还是highcharts？
我没有同时使用；我正在使用简单的图表属性

标签： c# asp.net-charts

【解决方案1】：

您可以手动调整聊天图例位置

Chart1.Legends["Legend1"].Position.Auto = false;
Chart1.Legends["Legend1"].Position = new ElementPosition(x, y, width, hight);

您需要使用所有必需参数通过ElementPosition 定位元素。

或者您也可以在这里查看Example，它解释了如何调整图表区域内的图例。

【讨论】：

它对你有用吗？
实际上我添加的图表是动态的，所以我认为无法准确找到位置。还有一点是，每个图表的图表区域都应该包含详细的细节。

【解决方案2】：

谢谢。

if (t == ARF.Rows.Count)
{
    for (int s = 0; s < ARF.Rows.Count; s++)
    {
        Chart1.Legends.Add(new Legend("Legends1" + s.ToString()));
        Chart1.Series["Series1" + s.ToString()].Legend = "Legends1" + s.ToString();
        Chart1.Legends["Legends1" + s.ToString()].DockedToChartArea = "ChartArea1" + s.ToString();
    }
}

【讨论】：

【解决方案3】：

感谢您的建议。我在 VB.NET 中遇到了将图例添加到每个图表区域的问题，直到我使用以下内容：

  For k = 1 To NumChartAreas
      chart1.ChartAreas.Add(k - 1)
      chart1.ChartAreas(k - 1).Name = k - 1

      'Add new legend to each chartarea
      chart1.Legends.Add(New Legend("Legends" + k.ToString()))
      chart1.Legends("Legends" + k.ToString()).DockedToChartArea = chart1.ChartAreas(k - 1).Name
      chart1.Legends("Legends" + k.ToString()).Docking = Docking.Right

      'Populate series data for this chartarea
      Cnt = -1
      For j = 1 To NumSeries 'Number of series in this chartarea
          Cnt += 1
          chart1.Series.Add(Cnt)
          For i = 1 To NumDataPoints ' Number of datapoints in this series
              chart1.Series(Cnt).Points.AddXY(i, Rnd())
          Next
          chart1.Series(Cnt).Legend = "Legends" + k.ToString
      Next j
  Next k

【讨论】：