MVC中图表控件如何在ASP.NET中使用？相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。
首先定义一个controller,提供以下方法实现
#region Chart Component
public FileResult CreateChart(SeriesChartType chartType)
{
IList peoples = _resultService.GetResults();
Chart chart = new Chart();
chart.Width = 700;
chart.Height = 300;
chart.BackColor = Color.FromArgb(211, 223, 240);
chart.BorderlineDashStyle = ChartDashStyle.Solid;
chart.BackSecondaryColor = Color.White;
chart.BackGradientStyle = GradientStyle.TopBottom;
chart.BorderlineWidth = 1;
chart.Palette = ChartColorPalette.BrightPastel;
chart.BorderlineColor = Color.FromArgb(26, 59, 105);
chart.RenderType = RenderType.BinaryStreaming;
chart.BorderSkin.SkinStyle = BorderSkinStyle.Emboss;
chart.AntiAliasing = AntiAliasingStyles.All;
chart.TextAntiAliasingQuality = TextAntiAliasingQuality.Normal;
chart.Titles.Add(CreateTitle());
chart.Legends.Add(CreateLegend());
chart.Series.Add(CreateSeries(peoples,chartType));
chart.ChartAreas.Add(CreateChartArea());
MemoryStream ms = new MemoryStream();
chart.SaveImage(ms);
return File(ms.GetBuffer(), @"image/png");
}
[NonAction]
public Title CreateTitle()
{
Title title = new Title();
title.Text = "Result Chart";
title.ShadowColor = Color.FromArgb(32, 0, 0, 0);
title.Font = new Font("Trebuchet MS", 14F, FontStyle.Bold);
title.ShadowOffset = 3;
title.ForeColor = Color.FromArgb(26, 59, 105);
return title;
}
[NonAction]
public Legend CreateLegend()
{
Legend legend = new Legend();
legend.Name = "Result Chart";
legend.Docking = Docking.Bottom;
legend.Alignment = StringAlignment.Center;
legend.BackColor = Color.Transparent;
legend.Font = new Font(new FontFamily("Trebuchet MS"), 9);
legend.LegendStyle = LegendStyle.Row;
return legend;
}
[NonAction]
public Series CreateSeries(IList results, SeriesChartType chartType)
{
Series seriesDetail = new Series();
seriesDetail.Name = "Result Chart";
seriesDetail.IsValueShownAsLabel = false;
seriesDetail.Color = Color.FromArgb(198, 99, 99);
seriesDetail.ChartType = chartType;
seriesDetail.BorderWidth = 2;
seriesDetail["DrawingStyle"] = "Cylinder";
seriesDetail["PieDrawingStyle"] = "SoftEdge";
DataPoint point;
foreach (ResultModel result in results)
{
point = new DataPoint();
point.AxisLabel =result.ID;
point.YValues = new double[] {double.Parse(result.GPA) };
seriesDetail.Points.Add(point);
}
seriesDetail.ChartArea = "Result Chart";
return seriesDetail;
}
[NonAction]
public ChartArea CreateChartArea()
{
ChartArea chartArea = new ChartArea();
chartArea.Name = "Result Chart";
chartArea.BackColor = Color.Transparent;
chartArea.AxisX.IsLabelAutoFit = false;
chartArea.AxisY.IsLabelAutoFit = false;
chartArea.AxisX.LabelStyle.Font = new Font("Verdana,Arial,Helvetica,sans-serif", 8F, FontStyle.Regular);
chartArea.AxisY.LabelStyle.Font = new Font("Verdana,Arial,Helvetica,sans-serif", 8F, FontStyle.Regular);
chartArea.AxisY.LineColor = Color.FromArgb(64, 64, 64, 64);
chartArea.AxisX.LineColor = Color.FromArgb(64, 64, 64, 64);
chartArea.AxisY.MajorGrid.LineColor = Color.FromArgb(64, 64, 64, 64);
chartArea.AxisX.MajorGrid.LineColor = Color.FromArgb(64, 64, 64, 64);
chartArea.AxisX.Interval = 1;
return chartArea;
}
#endregion 图表类的各种属性，可以控制宽度，高度，边框颜色，背景颜色，皮肤，调色板，等。最终形成图片格式展现在页面。
这里介绍的项目是ASP.NET MVC的图表控件的一个小demo示例,最终展示如下：
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