Question

我一直在使用Stack Overflow来实现使用C＃

的图表控件

public class ASPChartPartialViewController : Controller
    {
        public ActionResult Index()
        {
            return View();
        }

        private void CreateChart()
        {
            Chart myChart = new Chart();

            //Create a new series for the chart
            var series = new Series
            {
                Name = "Test Series",
                Color = System.Drawing.Color.Green,
                IsVisibleInLegend = true,
                IsXValueIndexed = true,
                ChartType = SeriesChartType.Line
            };

            //Bind the data to the new series
            series.Points.DataBindXY(new[] { 2001, 2002, 2003, 2004 }, new[] { 100, 200, 90, 150 });

            //Add the series to the chart
            myChart.Series.Add(series);
        }
    }

这是我用来启动的控制器类。问题是，如何在.cshtml视图中显示它？ MSDN文档并没有给我很多帮助。

Answer 1

如果您正在使用ASP.net图表控件，您必须确保在控制器中将图表作为FileContentResult返回，因此实现将类似于

   public ActionResult Index()
        {
            return View(GetChart().FileContents);
        }
  public FileContentResult GetChart()
    {
     Chart myChart = new Chart();
    ///when you setup your chart you can 
    myChart.ToWebImage(format: "png");
    return new FileContentResult(myChart.GetBytes(), myChart.ImageFormat);

    }

在视图部分中，您可以尝试

@model  byte[]

<img src="data:image/jpg;base64,@(Html.Raw(Convert.ToBase64String((byte[])Model)))" alt="" />

以.cshtml显示图表

1 个答案: