C#利用Chart类别建立不含格线的直条图

依据预设，当程序建立一个 Chart ，X Y轴均会有网格线 。如下图：

 

 

但如果只要显示 X=5 跟 Y = 0 的这两条呢? 如下图 ：

 

 

很简单，只要将X Y 轴的MajorGrid 的 LineWidth属性设定为0 就可以了
程序如下：

 

01.usingSystem;

02.usingSystem.Collections.Generic;

03.usingSystem.Linq;

04.usingSystem.Web;

05.usingSystem.Web.UI;

06.usingSystem.Web.UI.WebControls;

07.usingSystem.Web.UI.DataVisualization.Charting;

08.usingSystem.Drawing;

09.namespaceTestChart

10.{

11.publicpartialclass index : System.Web.UI.Page

12.{

13.protectedvoidPage_Load(objectsender, EventArgs e)

14.{

15.}

16. 

17.privatevoidCreateChart()

18.{

19.using(Chart chart =new Chart())

20.{

21.ChartArea area = chart.ChartAreas.Add("chartArea");

22.area.Visible =true;

23. 

24.area.AxisX.MajorGrid.LineWidth = 0;

25.area.AxisX2.Enabled = AxisEnabled.False;

26. 

27.area.AxisY.MajorGrid.LineWidth = 0;

28.area.AxisY2.Enabled = AxisEnabled.False;

29. 

30.Series series = chart.Series.Add("firstSeries");

31.series.ChartType = SeriesChartType.Column;

32. 

33.Random r =newRandom(Guid.NewGuid().GetHashCode());

34. 

35.for(inti = 5; i < 50; i += 5)

36.{

37.series.Points.AddXY(i, r.Next(5, 30));

38.}

39. 

40.series.XAxisType = AxisType.Primary;

41.series.YAxisType = AxisType.Primary;

42.series.Color = Color.Cyan;

43.series.ChartArea = area.Name;

44.series.Enabled =true;

45. 

46.stringexportFileName = Server.MapPath(".") +"/testImage.jpg";

47.chart.SaveImage(exportFileName, ChartImageFormat.Jpeg);

48.this.ClientScript.RegisterStartupScript(this.GetType(),"exportChart",string.Format("alert('已成功汇出至:{0}');", exportFileName.Replace('\\','/')),true);

49.}

50.}

51. 

52.protectedvoidButton1_Click(objectsender, EventArgs e)

53.{

54.CreateChart();

55.}

56.}

57.}